Schizoneura hi-res stock photography and images

Colopha compressa (Colopha compressa, Schizoneura compressa), galls at a leaf of an elm, Germany Stock Photo

RMCNXM6R–Colopha compressa (Colopha compressa, Schizoneura compressa), galls at a leaf of an elm, Germany

Schizoneura populi. 7 Oct 20151 Stock Photo

RM2BF6HY0–Schizoneura populi. 7 Oct 20151

Grand Junction, Mesa, Colorado, United States, Schizoneura populi Gillette, 1908, Animalia, Arthropoda, Insecta, Hemiptera, Sternorrhyncha, Aphididae, Eriosomatinae Stock Photo

RM2D7A9A8–Grand Junction, Mesa, Colorado, United States, Schizoneura populi Gillette, 1908, Animalia, Arthropoda, Insecta, Hemiptera, Sternorrhyncha, Aphididae, Eriosomatinae

insects, damages, elm leaf gal (schizoneura lanuginoza) Date: undated Keywords: damages, insects Personal name: elm leaf gal (schizoneura lanuginoza) ) Stock Photo

RM2ARN744–insects, damages, elm leaf gal (schizoneura lanuginoza) Date: undated Keywords: damages, insects Personal name: elm leaf gal (schizoneura lanuginoza) )

EB1911 Palaeobotany Schizoneura gondwanensis Stock Photo

RMKBPYR8–EB1911 Palaeobotany Schizoneura gondwanensis

insects, damages, elm leaf gal (schizoneura ulmi) Date: undated Keywords: damages, insects Personal name: elm leaf gal (schizoneura ulmi) : Stock Photo

RM2APTE62–insects, damages, elm leaf gal (schizoneura ulmi) Date: undated Keywords: damages, insects Personal name: elm leaf gal (schizoneura ulmi) :

Image of Woolly apple-louse, Schizoneura lanigera: showing a group of specimens on bark., vintage line drawing or engraving illustration. Stock Vector

RF2BTGMBE–Image of Woolly apple-louse, Schizoneura lanigera: showing a group of specimens on bark., vintage line drawing or engraving illustration.

Schizoneura populi. 6 Oct 20151 Stock Photo

RM2BF61A8–Schizoneura populi. 6 Oct 20151

Image of Schizoneura Langera in root and wind form, vintage line drawing or engraving illustration. Stock Vector

RF2BTHB3X–Image of Schizoneura Langera in root and wind form, vintage line drawing or engraving illustration.

$Text-book of structural and physiological botany . Fig. 543-—Terminal, middle, and fertile branch of Voltzta {Schizoneura)heterophylla, from the Vosges.. Fig. 544.—a fertile and barren pinna of a Fefrond, Go^iiopteris Murreyana. Stock Photo$

RM2AXCYFD–Text-book of structural and physiological botany . Fig. 543-—Terminal, middle, and fertile branch of Voltzta {Schizoneura)heterophylla, from the Vosges.. Fig. 544.—a fertile and barren pinna of a Fefrond, Go^iiopteris Murreyana.

Image of a wooly apple -louse ( Schizoneura lanigera), a winged adult., vintage line drawing or engraving illustration. Stock Vector

RF2BTGFJ9–Image of a wooly apple -louse ( Schizoneura lanigera), a winged adult., vintage line drawing or engraving illustration.

. Fossil plants : for students of botany and geology . Paleobotany. IX] SCHIZONEURA GONDWANENSIS. 293 As already pointed out', some of the specimens of flat and broader stems referred by Feistmantei to Schizonevra are. Fig. 69. Schizoneura gondwanensis Feist, duced.) (After Feistmantei; slightly re- identical in appearance with stems which have been described from India and elsewhere as species of Phyllotheca. There are a few specimens of 8. gondwanensis in the British Museum, but the genus is poorly represented in Euro- pean collections. A similar plant was described in 1844 by Schimper and M Stock Photo

RMPG16HM–. Fossil plants : for students of botany and geology . Paleobotany. IX] SCHIZONEURA GONDWANENSIS. 293 As already pointed out', some of the specimens of flat and broader stems referred by Feistmantei to Schizonevra are. Fig. 69. Schizoneura gondwanensis Feist, duced.) (After Feistmantei; slightly re- identical in appearance with stems which have been described from India and elsewhere as species of Phyllotheca. There are a few specimens of 8. gondwanensis in the British Museum, but the genus is poorly represented in Euro- pean collections. A similar plant was described in 1844 by Schimper and M

Archive image from page 152 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 Figur 61. Blattrandfaltungeu: a, Gallen von wechselnder Größe und mit unscharfen Grenzen {Perrisia persicariae an Polygoiium mnpliibhmi); b, Gallen von konstanter Form und Größe und mit scharfen Grenzen (Pemphigus semilunarius an Pistacia). denen Äa/Za; - Arten, Perrisia tiliamvolvens an Tilia [vgl. Fig. 59]), oder mn lockere zigarrenähnliche Rollen, die einen großen Teil der Blattspreite in Anspruch nehmen (Schizoneura ulmi auf Ulmu Stock Photo

RMW02P0B–Archive image from page 152 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 Figur 61. Blattrandfaltungeu: a, Gallen von wechselnder Größe und mit unscharfen Grenzen {Perrisia persicariae an Polygoiium mnpliibhmi); b, Gallen von konstanter Form und Größe und mit scharfen Grenzen (Pemphigus semilunarius an Pistacia). denen Äa/Za; - Arten, Perrisia tiliamvolvens an Tilia [vgl. Fig. 59]), oder mn lockere zigarrenähnliche Rollen, die einen großen Teil der Blattspreite in Anspruch nehmen (Schizoneura ulmi auf Ulmu

. Economic entomology for the farmer.. . Schizoneura lanigera, root form.—a, galls caused by them on apple-roots ; b, winged form. wingless, wax-coated form ; c, Stock Photo

RMMAAA5J–. Economic entomology for the farmer.. . Schizoneura lanigera, root form.—a, galls caused by them on apple-roots ; b, winged form. wingless, wax-coated form ; c,

Colopha compressa (Colopha compressa, Schizoneura compressa), gall at a leaf of an elm, Germany Stock Photo

RMCNXM6J–Colopha compressa (Colopha compressa, Schizoneura compressa), gall at a leaf of an elm, Germany

woolly aphid, gall aphid (Eriosoma ulmi, Schizoneura ulmi), damage of leaves, Germany Stock Photo

RMEBN2P4–woolly aphid, gall aphid (Eriosoma ulmi, Schizoneura ulmi), damage of leaves, Germany

Forest entomology . Fig. 275.—Wing 0/Aphis sambuci, with third vein twice forked. number of rings or somites is variable. On the sixth segment manygenera have two important tubes or appendages; called cornicles,. Fig. 276. — Wing of Schizoneura ulnii, ivith third vein once forked. which serve for the exudation of a liquid substance known as honeydew ; others have none. Stock Photo

RM2ANAMYD–Forest entomology . Fig. 275.—Wing 0/Aphis sambuci, with third vein twice forked. number of rings or somites is variable. On the sixth segment manygenera have two important tubes or appendages; called cornicles,. Fig. 276. — Wing of Schizoneura ulnii, ivith third vein once forked. which serve for the exudation of a liquid substance known as honeydew ; others have none.

Woolly apple-louse, Schizoneura lanigera: a crevice on a branch where they congregate., vintage line drawing or engraving illustration. Stock Vector

RF2BTH9YJ–Woolly apple-louse, Schizoneura lanigera: a crevice on a branch where they congregate., vintage line drawing or engraving illustration.

. Fossil plants : for students of botany and geology . Paleobotany. IX] PHYLLOTHECA. 285 pith, as in Catamites. In the Calamitean casts the ridges and grooves of each internode usually alternate in position with those of the next, as in Equisetum (fig. 54, A), but in Phyl- lotheca, Schizoneura and Archaeocalamites there is no such regular alternation at the nodes of the internodal vascular strands.. Fig. 67. Phyllotheca ? J nat. size. From a South African specimen of Permo-Carboniferous age in the British Museum. In Phyllotheca and Schizoneura there are no casts of' infra- nodal canals' below Stock Photo

RMPG16JE–. Fossil plants : for students of botany and geology . Paleobotany. IX] PHYLLOTHECA. 285 pith, as in Catamites. In the Calamitean casts the ridges and grooves of each internode usually alternate in position with those of the next, as in Equisetum (fig. 54, A), but in Phyl- lotheca, Schizoneura and Archaeocalamites there is no such regular alternation at the nodes of the internodal vascular strands.. Fig. 67. Phyllotheca ? J nat. size. From a South African specimen of Permo-Carboniferous age in the British Museum. In Phyllotheca and Schizoneura there are no casts of' infra- nodal canals' below

Archive image from page 86 of Das Leben der Pflanze (1906). Das Leben der Pflanze daslebenderpflan06fran Year: 1906 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac $otonl6.) mancfje igenfcaften Bcfien, bie in geiüiffer Söetfe amifcfien bcn heutigen (adtcl= lalmen unb ben 5tatamarten üermitteln. äöir latten früher ge[een, bo bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auSeicfjnen; ein eil ber mefo3oif(f)en (Squifetiten üerält [ic nun lüie Stock Photo

RMW1T0NY–Archive image from page 86 of Das Leben der Pflanze (1906). Das Leben der Pflanze daslebenderpflan06fran Year: 1906 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac $otonl6.) mancfje igenfcaften Bcfien, bie in geiüiffer Söetfe amifcfien bcn heutigen (adtcl= lalmen unb ben 5tatamarten üermitteln. äöir latten früher ge[een, bo bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auSeicfjnen; ein eil ber mefo3oif(f)en (Squifetiten üerält [ic nun lüie

. Economic entomology for the farmer and fruit-grower . Schizoneura lanigera. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form. Stock Photo

RMMAA9G6–. Economic entomology for the farmer and fruit-grower . Schizoneura lanigera. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form.

woolly aphid, gall aphid (Eriosoma ulmi, Schizoneura ulmi), six woolly aphids on a withered leaf, Germany Stock Photo

RMEBN2P5–woolly aphid, gall aphid (Eriosoma ulmi, Schizoneura ulmi), six woolly aphids on a withered leaf, Germany

Forest entomology . require description. The species belonging to this tribe differ in two ways from insectsbelonging to the previous tribe, both as regards the structure of theinsects and the nature of the injuries. APHIDID^E. 315 Genus Schizoneura. As regards the structural details, the following generic charactersare given by Buckton—viz. : Rostrum moderately long in the adult, much longer in the young. Antennae with six articulations, omitting the terminal unciformprocess. The first and second joints very short, the third much the longest,and in all cases either ringed or cupped ; the four Stock Photo

RM2ANA9JG–Forest entomology . require description. The species belonging to this tribe differ in two ways from insectsbelonging to the previous tribe, both as regards the structure of theinsects and the nature of the injuries. APHIDID^E. 315 Genus Schizoneura. As regards the structural details, the following generic charactersare given by Buckton—viz. : Rostrum moderately long in the adult, much longer in the young. Antennae with six articulations, omitting the terminal unciformprocess. The first and second joints very short, the third much the longest,and in all cases either ringed or cupped ; the four

. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ATTAOKINa THE BEANOHES, EiG. 13. No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No. 1), but in this form the insects attack the trunk and limbs of the apple-tree, living in clusters, and secreting over themselves small patches of a cotton-like covering. (See Fig. 13, where the insects are represented magnified.) They are often found about the base of twigs or suckers springing from the trunk, and also about the base of the Stock Photo

RMPFXECC–. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ATTAOKINa THE BEANOHES, EiG. 13. No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No. 1), but in this form the insects attack the trunk and limbs of the apple-tree, living in clusters, and secreting over themselves small patches of a cotton-like covering. (See Fig. 13, where the insects are represented magnified.) They are often found about the base of twigs or suckers springing from the trunk, and also about the base of the

Archive image from page 203 of Der Forstschutz (1898). Der Forstschutz derforstschutz00hessuoft Year: 1898 iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. iefämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen = Stock Photo

RMW0R1NG–Archive image from page 203 of Der Forstschutz (1898). Der Forstschutz derforstschutz00hessuoft Year: 1898 iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. iefämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen =

. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Schizoneura lanigeya. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form. Stock Photo

RMMAAAW8–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Schizoneura lanigeya. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form.

Proceedings of the Royal Society of Queensland . Maryborough. The plants known from these Series include somethirty-seven species, as follows :— 14 QUEENSLAND FOSSIL FLORAS Equisetites roliferunEquisetites cf. rajmdh ?? Schizoneura sp. OfSchizoneura sp.Cladophlebis a ustrali ?CladopMebis Rot/leiPMebopteris ahthopteroidesDictyophyllum rugosumDictyophyllum Da > idiHausmannia (?) BuehiiTh i a nfeldia Fe isi ma nteliTh in nfeldia odontopteroidesThin nfeldia lancifoliaSagenopteris rhoifoliaSphenopteris superbaStenopteris elongataGinkgo magnifoliaBaiera Simmondsi Ptilophyllum (Williamsonia) pecle Stock Photo

RM2AJA96C–Proceedings of the Royal Society of Queensland . Maryborough. The plants known from these Series include somethirty-seven species, as follows :— 14 QUEENSLAND FOSSIL FLORAS Equisetites roliferunEquisetites cf. rajmdh ?? Schizoneura sp. OfSchizoneura sp.Cladophlebis a ustrali ?CladopMebis Rot/leiPMebopteris ahthopteroidesDictyophyllum rugosumDictyophyllum Da > idiHausmannia (?) BuehiiTh i a nfeldia Fe isi ma nteliTh in nfeldia odontopteroidesThin nfeldia lancifoliaSagenopteris rhoifoliaSphenopteris superbaStenopteris elongataGinkgo magnifoliaBaiera Simmondsi Ptilophyllum (Williamsonia) pecle

. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. FORMS OF MANTLE-GALLS. 533 and Wayfaring Tree (Viburnum Lantana) ciliated, whilst in the inflated galls of the Elm caused by the white woolly leaf-louse (Schizoneura lanuginosa), it is covered with fine hairs like velvet. The capitate galls on the foliage of Maples, Alders, and Limes, of the Guelder-rose and Strawberry, are scattered abundantly over the whole lamina; in the Sloe they stand out chiefly from the margin of the leaf, and in Elms they occur singly or in groups on its central portions. The Stock Photo

RMPG1RJY–. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. FORMS OF MANTLE-GALLS. 533 and Wayfaring Tree (Viburnum Lantana) ciliated, whilst in the inflated galls of the Elm caused by the white woolly leaf-louse (Schizoneura lanuginosa), it is covered with fine hairs like velvet. The capitate galls on the foliage of Maples, Alders, and Limes, of the Guelder-rose and Strawberry, are scattered abundantly over the whole lamina; in the Sloe they stand out chiefly from the margin of the leaf, and in Elms they occur singly or in groups on its central portions. The

Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . economicentomolo00insmit Year: 1896 THE INSECT WORLD. ^l}, Fig. 97. ' woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The ' alder - bli Stock Photo

RMRYR3K5–Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . economicentomolo00insmit Year: 1896 THE INSECT WORLD. ^l}, Fig. 97. ' woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The ' alder - bli

. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Schizoneura latiigera. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form. Stock Photo

RMMAAC62–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Schizoneura latiigera. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c. winged form.

Insect pests of farm, garden and orchard . Fig. 122.—Grass root-louse {Schizoneura panicola); winged vivaparousfemale, a, antenna. (After Forbes.) each generation taking about sixteen days and there being abouttwelve generations during the season. Both winged and winglessagamic females occur throughout the summer, but late in Sep-tember and in October wingless forms which develop into truemales and females are produced. These mate and the femaleslay eggs during October, most of them being carried by the antsto their nests, where the eggs are laid. Control.—Owing to the fact that the aphides do Stock Photo

RM2AWX1YB–Insect pests of farm, garden and orchard . Fig. 122.—Grass root-louse {Schizoneura panicola); winged vivaparousfemale, a, antenna. (After Forbes.) each generation taking about sixteen days and there being abouttwelve generations during the season. Both winged and winglessagamic females occur throughout the summer, but late in Sep-tember and in October wingless forms which develop into truemales and females are produced. These mate and the femaleslay eggs during October, most of them being carried by the antsto their nests, where the eggs are laid. Control.—Owing to the fact that the aphides do

. Das Leben der Pflanze. Plants; Plants; Plants; Phytogeography. 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac^ $otonl6.) mancfje ©igenfc^aften Bcfi^en, bie in geiüiffer Söetfe amifcfien bcn heutigen ©(^ad^tcl= l^almen unb ben 5tatamarten üermitteln. äöir l^atten früher ge[e^en, bo^ bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auS^eicfjnen; ein ^eil ber mefo3oif(f)en (Squifetiten üer^ält [ic^ nun lüie bie re3enten (Squifeten, ein anberer Stock Photo

RMPFG8FB–. Das Leben der Pflanze. Plants; Plants; Plants; Phytogeography. 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac^ $otonl6.) mancfje ©igenfc^aften Bcfi^en, bie in geiüiffer Söetfe amifcfien bcn heutigen ©(^ad^tcl= l^almen unb ben 5tatamarten üermitteln. äöir l^atten früher ge[e^en, bo^ bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auS^eicfjnen; ein ^eil ber mefo3oif(f)en (Squifetiten üer^ält [ic^ nun lüie bie re3enten (Squifeten, ein anberer

Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomolo00smit Year: 1906 Woolly apple-louse, Schizoneura lanigrra: show ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the g^nws Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot P „ ton attached to leaves or twigs, beneat Stock Photo

RMRYR3YP–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomolo00smit Year: 1906 Woolly apple-louse, Schizoneura lanigrra: show ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the g^nws Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot P „ ton attached to leaves or twigs, beneat

. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . Schizoneura lamgi'ra. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c, winged form. Stock Photo

RMMAABG8–. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . Schizoneura lamgi'ra. root form.—a, galls caused by them on apple-roots ; b, wingless, wax-coated form ; c, winged form.

Quince cultureAn illustrated hand-book for the propagation and cultivation of the quince with descriptions of its varieties, insect enemies, diseases, and their remedies . gray, and somewhat transparent.The shape is convex and the size only about six hun-dredths of an inch across. The remedy is a strong solu-tion of potash or soft soap, applied with a swab or brush. 3. The Woolly Aphis {Aphis lanigera or schizoneura,Hausmann).—The downy plant lice, now placed in the genus Eriosoma, are among themost destructive species. Thisaphis was imported on fruit treesfrom Europe, and yet in Englandit is Stock Photo

RM2AWH5G3–Quince cultureAn illustrated hand-book for the propagation and cultivation of the quince with descriptions of its varieties, insect enemies, diseases, and their remedies . gray, and somewhat transparent.The shape is convex and the size only about six hun-dredths of an inch across. The remedy is a strong solu-tion of potash or soft soap, applied with a swab or brush. 3. The Woolly Aphis {Aphis lanigera or schizoneura,Hausmann).—The downy plant lice, now placed in the genus Eriosoma, are among themost destructive species. Thisaphis was imported on fruit treesfrom Europe, and yet in Englandit is

. Das Leben der Pflanze. Plants; Plants; Plants; Phytogeography. uifettten. 69. 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac^ $otonl6.) mancfje ©igenfc^aften Bcfi^en, bie in geiüiffer Söetfe amifcfien bcn heutigen ©(^ad^tcl= l^almen unb ben 5tatamarten üermitteln. äöir l^atten früher ge[e^en, bo^ bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auS^eicfjnen; ein ^eil ber mefo3oif(f)en (Squifetiten üer^ält [ic^ nun lüie bie re3enten (Squifete Stock Photo

RMPFG8FJ–. Das Leben der Pflanze. Plants; Plants; Plants; Phytogeography. uifettten. 69. 58. Schizoneura paradox a. 9Iu§ bem JBuntfanbftetn. (9Jac^ $otonl6.) mancfje ©igenfc^aften Bcfi^en, bie in geiüiffer Söetfe amifcfien bcn heutigen ©(^ad^tcl= l^almen unb ben 5tatamarten üermitteln. äöir l^atten früher ge[e^en, bo^ bte S3lätter ber 5?alamaricn [id) gegenüber bcn fcfieibig bleibenben ber f)entigen @qut= feten burrf) noüftänbige Trennung ber Slattquirle in einzelne Slätter (Annularia unb Asterophyllites) auS^eicfjnen; ein ^eil ber mefo3oif(f)en (Squifetiten üer^ält [ic^ nun lüie bie re3enten (Squifete

Economic entomology for the farmer Economic entomology for the farmer.. economicentomolo00smit 0 Year: 1896 THE INSECT WORLD. 133 Fig Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura, These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant l Stock Photo

RMRX84PE–Economic entomology for the farmer Economic entomology for the farmer.. economicentomolo00smit 0 Year: 1896 THE INSECT WORLD. 133 Fig Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura, These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant l

. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . ©allen uou 5ig. 41. Schizoneura aftiiftern. iaiuiginosa au Schizoneura lacuginosa an Ulmen. ') Etudes sur les gailes produites yar les Aphidiens. Montpellier ISTi). Stock Photo

RMME843B–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . ©allen uou 5ig. 41. Schizoneura aftiiftern. iaiuiginosa au Schizoneura lacuginosa an Ulmen. ') Etudes sur les gailes produites yar les Aphidiens. Montpellier ISTi).

Appendix to the Journals of the Senate and Assembly of the ..session of the Legislature of the State of California . Fig. 3. Prune Aphis {Aphis prunifolix). Fig. 4. Woolly Aphis {Schizoneura lanigera). Woolly Aphis {Schizoneura lanigera). (Fig. 4.) Every season thisinsect has been reported, and 1904 records quite a lot of inquiry. Theroot form, or winter brood, does not seem to be as closely observed bythe grower as its importance demands. This pest could be materiallychecked by attacking the root or winter brood in season, which can beaccomplished by an application of gas-lime placed in a tre Stock Photo

RM2AM2R91–Appendix to the Journals of the Senate and Assembly of the ..session of the Legislature of the State of California . Fig. 3. Prune Aphis {Aphis prunifolix). Fig. 4. Woolly Aphis {Schizoneura lanigera). Woolly Aphis {Schizoneura lanigera). (Fig. 4.) Every season thisinsect has been reported, and 1904 records quite a lot of inquiry. Theroot form, or winter brood, does not seem to be as closely observed bythe grower as its importance demands. This pest could be materiallychecked by attacking the root or winter brood in season, which can beaccomplished by an application of gas-lime placed in a tre

$. Der Forstschutz. Forests and forestry. 164 II. «itd;. IV. Slbfc^nitt.. iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc^ entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ^ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. i^efämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen = a3IottIaug, 35Iattafc£)en = 9Jü Stock Photo$

RMPFC79K–. Der Forstschutz. Forests and forestry. 164 II. «itd;. IV. Slbfc^nitt.. iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc^ entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ^ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. i^efämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen = a3IottIaug, 35Iattafc£)en = 9Jü

RMRX84P7–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 THE INSECT WORLD. 133 Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. ' woolly plant-lice,' belonging to the genus Schizoncura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot ., , ton attached to

. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . ©allen uon 5-ig. 41. Schizoueura 3f{iiftern. lauugiuosa an Schizoneura laDuginosa au Ulmen. ') Etudes sur lee galles produites par les Aphidiens. Montpellier 1879. Stock Photo

RMME8350–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . ©allen uon 5-ig. 41. Schizoueura 3f{iiftern. lauugiuosa an Schizoneura laDuginosa au Ulmen. ') Etudes sur lee galles produites par les Aphidiens. Montpellier 1879.

The Journal of the Department of Agriculture, Victoria . ! of Iniit Trees. 427 Their method of attack is similar to that of the grten peach aphis. Theinsects concentrate at the ends of the young and tender growths which curl,wilt, and die hack. This pest is easily recogni.sed. The majority of the. insects are of a blackish colour, whilst some are brownish and others aregreen. Treatment.—The methods recommended fcr peach aphs attacking seed-lings, growing buds, &c., should be followed. p 2 4::8 Journal of Agriciillnrc, Yiciorla. [lo July. 1912. Woolly Aphis or American Blight—Schizoneura lanige Stock Photo

RM2AXBYXN–The Journal of the Department of Agriculture, Victoria . ! of Iniit Trees. 427 Their method of attack is similar to that of the grten peach aphis. Theinsects concentrate at the ends of the young and tender growths which curl,wilt, and die hack. This pest is easily recogni.sed. The majority of the. insects are of a blackish colour, whilst some are brownish and others aregreen. Treatment.—The methods recommended fcr peach aphs attacking seed-lings, growing buds, &c., should be followed. p 2 4::8 Journal of Agriciillnrc, Yiciorla. [lo July. 1912. Woolly Aphis or American Blight—Schizoneura lanige

$. Der Forstschutz. Forests and forestry. iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc^ entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ^ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. i^efämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen = a3IottIaug, 35Iattafc£)en = 9Jüi'tetnbIatttaug. Sefonbere ^ennä Stock Photo$

RMPFC79F–. Der Forstschutz. Forests and forestry. iBtattroaung, burd) .Schizoneura ulmi L. on einem Statte ber Selbulme oevuviodjt (natiirl. ®iöBe). 5i8. »1 (gig. 80). 2)ie f)icrburc^ entftnnbene runjclige »ioHe bef)erbevgt bie geflügelten 9ia(f)fc»inmen be§ ?, iuetd)e bas Saugen öon 3uii' bvi Stugnft fortfegen, ^ie SRoüen finb anfangs buntel=, bann bkid)griin nub löfcn fidj entweber üon felbft ab ober öer: trocfnen am Statte ju einem fd)iuaräbrannen 3Bnlfte. i^efämpfnng: Sl'ie bei ber uorigen. 7. Tetraneura ulmi de Geer. 3{iifterngaIIen = a3IottIaug, 35Iattafc£)en = 9Jüi'tetnbIatttaug. Sefonbere ^ennä

Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant l Stock Photo

RMRX84PH–Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant l

. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. " woolly plant-lice," belonging to the genus Schizoncura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot ., , ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of pla Stock Photo

RMMAAC6A–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. " woolly plant-lice," belonging to the genus Schizoncura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot ., , ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of pla

Insects : their life-histories and habits . lly aphis or American blight(Schizoneura lanigera) of our orchards, and the feltedbeech coccus {Cryptococcus fagi). Among the frog-hoppers the young nymph exudes a copious frothy liquid—the familiar cuckoo spit—in the midst of which itlies hidden ; while the caterpillars of certain saw-flies—known popularly as slug - worms —secrete a dark-coloured slime which completely envelops their bodies,and renders them obnoxious to their foes. The larvseof tortoise beetles (Cassida) actually shelter under theirown excrement, which accumulates as a kind of flatt Stock Photo

RM2AJ0FW1–Insects : their life-histories and habits . lly aphis or American blight(Schizoneura lanigera) of our orchards, and the feltedbeech coccus {Cryptococcus fagi). Among the frog-hoppers the young nymph exudes a copious frothy liquid—the familiar cuckoo spit—in the midst of which itlies hidden ; while the caterpillars of certain saw-flies—known popularly as slug - worms —secrete a dark-coloured slime which completely envelops their bodies,and renders them obnoxious to their foes. The larvseof tortoise beetles (Cassida) actually shelter under theirown excrement, which accumulates as a kind of flatt

. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 106 siden lys brungul. Langs Ryggens Midtlinie findes en mørk Streg, strækkende sig fra Prothorax's Midte til fjerdesidste Bagkropssegment. Længde 12—15 mm. Larven er funden sugende paa Bladlusene Phylla- phis fa gi L. (lever paa Bøg), Schizoneura ulmi L. (paa Elm), Schizoneura lanigera Hausm. (paa Æble- træer) og Hyalapterus p r u n i Fabr. (paa Blomme- træer). Larven forpupper sig i Forsommeren til hen mod Udgangen af Juli i et sammenkrøllet Blad eller i Revner i Bark. Før den endelige Forvandling gaar Puppen ud af Kokon Stock Photo

RMPFHR8X–. Danmarks fauna; illustrerede haandbøger over den danske dyreverden... 106 siden lys brungul. Langs Ryggens Midtlinie findes en mørk Streg, strækkende sig fra Prothorax's Midte til fjerdesidste Bagkropssegment. Længde 12—15 mm. Larven er funden sugende paa Bladlusene Phylla- phis fa gi L. (lever paa Bøg), Schizoneura ulmi L. (paa Elm), Schizoneura lanigera Hausm. (paa Æble- træer) og Hyalapterus p r u n i Fabr. (paa Blomme- træer). Larven forpupper sig i Forsommeren til hen mod Udgangen af Juli i et sammenkrøllet Blad eller i Revner i Bark. Før den endelige Forvandling gaar Puppen ud af Kokon

RMRYR3YN–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomolo00smit Year: 1906 THE INSECT WORLD. '^ZZ Woolly apple-louse, Schizoneura lanigrra: show ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the g^nws Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot P „ ton attached

. Economic entomology for the farmer and fruit-grower . Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. "woolly plant-lice," belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The '' alder - blight'' Stock Photo

RMMAA9G8–. Economic entomology for the farmer and fruit-grower . Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. "woolly plant-lice," belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The '' alder - blight''

Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . leaves or twigs, beneath eachof which we find, how-ever, a great mass ofplant lice busily en-gaged in feeding. The alder ? blight andbeech-blight are dueto species of this kind,and more importantthan all is the apple-blight, or the woollyapple-louse. This spe-cies, Schizoneura lani-gera, has been intro-duced into other countries, and is known in England and Aus-tralia as the American blight. Young trees are frequentlyinjured by these aphids, which gather in masses on the trun Stock Photo

RM2AWY3F1–Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . leaves or twigs, beneath eachof which we find, how-ever, a great mass ofplant lice busily en-gaged in feeding. The alder ? blight andbeech-blight are dueto species of this kind,and more importantthan all is the apple-blight, or the woollyapple-louse. This spe-cies, Schizoneura lani-gera, has been intro-duced into other countries, and is known in England and Aus-tralia as the American blight. Young trees are frequentlyinjured by these aphids, which gather in masses on the trun

RMRX84P6–Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. ' woolly plant-lice,' belonging to the genus Schizoncura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot ., , ton attached to leaves or twigs, beneat

. Economic entomology for the farmer.. . Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. "woolly plant-lice," belonging to the genus Schizoneura, These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The '' alder - blight'' and '' beech-blight'' are due Stock Photo

RMMAAA5G–. Economic entomology for the farmer.. . Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. "woolly plant-lice," belonging to the genus Schizoneura, These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant lice busily en- gaged in feeding. The '' alder - blight'' and '' beech-blight'' are due

Insects injurious to fruits . ATTACKING THE BRANOHES. No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No. 1),but in this form the insects attack the trunk and limbs of theapple-tree, living in clusters, and secreting over themselvessmall patches of a cotton-like covering. (See Fig. 13, wherethe insects are represented magnified.)They are often found about the baseof twigs or suckers springing fromthe trunk, and also about the base ofthe trunk itself, and around recentwounds in the bark. In autumn theycommonly aflect t Stock Photo

RM2AKN6H7–Insects injurious to fruits . ATTACKING THE BRANOHES. No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No. 1),but in this form the insects attack the trunk and limbs of theapple-tree, living in clusters, and secreting over themselvessmall patches of a cotton-like covering. (See Fig. 13, wherethe insects are represented magnified.)They are often found about the baseof twigs or suckers springing fromthe trunk, and also about the base ofthe trunk itself, and around recentwounds in the bark. In autumn theycommonly aflect t

RMRYR3K7–Economic entomology for the farmer Economic entomology for the farmer.. . economicentomolo00smit 0 Year: 1896 THE INSECT WORLD. 133 Fig Woolly apple-louse, Schizoneura lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura, These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plan

RMMAAAW6–. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Woolly apple-louse, Schizoneura lanigrra: show ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. "woolly plant-lice," belonging to the g^nws Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot P „ ton attached to leaves or twigs, beneath each of which we find, how- ever, a great mass of plant

Insects injurious to fruits . ATTACKING THE BRANCHES. Fig No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No, 1),Out in this form the insects attack the trunk and limbs of theapple-tree, living in clusters, and secreting over themselvessmall patches of a cotton-like covering. (See Fig. 13, wherethe insects are represented magnified.)They are often found about the baseof twigs or suckers springing fromthe trunk, and also about the base ofthe trunk itself, and around recentwounds in the bark. In autumn theycommonly affe Stock Photo

RM2AJDYHX–Insects injurious to fruits . ATTACKING THE BRANCHES. Fig No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No, 1),Out in this form the insects attack the trunk and limbs of theapple-tree, living in clusters, and secreting over themselvessmall patches of a cotton-like covering. (See Fig. 13, wherethe insects are represented magnified.)They are often found about the baseof twigs or suckers springing fromthe trunk, and also about the base ofthe trunk itself, and around recentwounds in the bark. In autumn theycommonly affe

Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 133 Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever, Stock Photo

RMRX84PG–Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 133 Woolly apple-louse, Schizoneiira lanigera: show- ing a group of specimens on bark, a crevice on a branch, in which they congregate, and a winged form. 'woolly plant-lice,' belonging to the genus Schizoneura. These cover themselves with a secretion resembling fine cottony fibre, which conceals them more or less completely. Thus there may appear to be tufts of cot- ^ ^^ Fig. 97. ton attached to leaves or twigs, beneath each of which we find, how- ever,

. Die forstinsekten Mitteleuropas. Ein lehr- und handbuch . Fig. 180. Verschiedene Blattgallen an Ulme. A Blattrandgalle von Schizoneura uhni; B drei Beil teigallen von Schiz. lanuginosa; CTaschengallen von Pemphigus uhni. — (N.) Pflanze einbezogen wurden. Es sind dies meist Knospenan- schwellungen und Triebspitzendeformationen, oft verbunden mit kurzbleibender Achse und überhäufter. Blätterbildung. Sie werden teils als Knopperngallen, teils als Kuckucks- oder Ananasgallen, teils als Klunkern, Wirrzöpfe, Weidenrosen usw. bezeichnet. Als Er- zeuger kommen meist Hemipteren (z. B. Chermes als Erz Stock Photo

RMMEFER0–. Die forstinsekten Mitteleuropas. Ein lehr- und handbuch . Fig. 180. Verschiedene Blattgallen an Ulme. A Blattrandgalle von Schizoneura uhni; B drei Beil teigallen von Schiz. lanuginosa; CTaschengallen von Pemphigus uhni. — (N.) Pflanze einbezogen wurden. Es sind dies meist Knospenan- schwellungen und Triebspitzendeformationen, oft verbunden mit kurzbleibender Achse und überhäufter. Blätterbildung. Sie werden teils als Knopperngallen, teils als Kuckucks- oder Ananasgallen, teils als Klunkern, Wirrzöpfe, Weidenrosen usw. bezeichnet. Als Er- zeuger kommen meist Hemipteren (z. B. Chermes als Erz

. Report of the ... meeting. • Odontopteris • Pecopteris J • Sphenopteris • Taeniopteris • Danaea • Angiopteridiumt Macrotaeniopterist Cyclopteris Vertebraria Glossopteris Gangamopteris Rhacopteris Bornia Lepidodendron Cordaites Schizoneura Lepidophloios X .ftimites X Archaeopteris XCalamites LicTophycus t Genus first appeared in this horizon. * Genus derived from parents -who first made their appearance in the lower horizonin the opposite hemisphere; also indicates centre 0/origin. X Indicates tlie most abundant or most characteristic fortns, locally. AUSTRALASIAN ASSOC. ADV. SC VOL. I. 1 Stock Photo

RM2AGDK02–. Report of the ... meeting. • Odontopteris • Pecopteris J • Sphenopteris • Taeniopteris • Danaea • Angiopteridiumt Macrotaeniopterist Cyclopteris Vertebraria Glossopteris Gangamopteris Rhacopteris Bornia Lepidodendron Cordaites Schizoneura Lepidophloios X .ftimites X Archaeopteris XCalamites LicTophycus t Genus first appeared in this horizon. * Genus derived from parents -who first made their appearance in the lower horizonin the opposite hemisphere; also indicates centre 0/origin. X Indicates tlie most abundant or most characteristic fortns, locally. AUSTRALASIAN ASSOC. ADV. SC VOL. I. 1

. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . m- 43. S)ic ^SlutlauS (Schizoneura lanigera). A mib B 2(n[aiiß non ÄrebSbilbimgeu an einicil^rioen ilrieben, 13 mit meifjon inolltflen 33liit= lauStülonien bebecft, C iuncjer B^väc an ber Unterfeite ihit lueife- lUDÜigen aShitlauSfülüuien bebedt. b ®urc()fd}iiitt bitrcl) einen he-- fallenen QmäQ, a ba§> gefunbe .^olj, b ba^ lueidje, fd)iiiaüunifle 03e= »riebe an (Stelle be§ gefnnben .C>ol3*-'ä; über bicfev stelle ift bei c bie Siinbe bereits antcjepla^t. E alte geflügelte unb jnn Stock Photo

RMME8346–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . m- 43. S)ic ^SlutlauS (Schizoneura lanigera). A mib B 2(n[aiiß non ÄrebSbilbimgeu an einicil^rioen ilrieben, 13 mit meifjon inolltflen 33liit= lauStülonien bebecft, C iuncjer B^väc an ber Unterfeite ihit lueife- lUDÜigen aShitlauSfülüuien bebedt. b ®urc()fd}iiitt bitrcl) einen he-- fallenen QmäQ, a ba§> gefunbe .^olj, b ba^ lueidje, fd)iiiaüunifle 03e= »riebe an (Stelle be§ gefnnben .C>ol3*-'ä; über bicfev stelle ift bei c bie Siinbe bereits antcjepla^t. E alte geflügelte unb jnn

Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 59.—Woolly aphis (Schizoneura lanigera Hausm.) — (a) agamic female; (b) larval louse; (c) pupa; (d) winged female with antenna enlarged above; all greatly enlarged and with waxy excretion removed. After Marlatt, Division of Entomology, Dept. of Agriculture.. Fig. GO.—Woolly aphis.— (a) root of young tree illustrating deformation; (b) section of root with aphides clustered over it: (c) root louse, female; (a and b) natural size; (c) much enlarged. After Marlatt, Division of Entomology, Dep. of Agriculture Stock Photo

RM2AWP0BR–Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 59.—Woolly aphis (Schizoneura lanigera Hausm.) — (a) agamic female; (b) larval louse; (c) pupa; (d) winged female with antenna enlarged above; all greatly enlarged and with waxy excretion removed. After Marlatt, Division of Entomology, Dept. of Agriculture.. Fig. GO.—Woolly aphis.— (a) root of young tree illustrating deformation; (b) section of root with aphides clustered over it: (c) root louse, female; (a and b) natural size; (c) much enlarged. After Marlatt, Division of Entomology, Dep. of Agriculture

. !ea Mays. 38. Gattung. Bartgras. Andropogon. 39. Gattung. Hirse, Fennich, Panicum. a. K il f e r. 1. Agriotes segetis, L. (Nach Taschen- berg.) b. Falter. 2. Erebia Medusa, F. Die Kaupe lebt nach Ueberwiuteruug im April au Panicum, Se- taria u. a. Der Falter fliegt Ende Mai, Juni auf Waldwiesen. (Wilde.) 3. Botys silacealis, 11h. - nubilalis, IIb. (Siehe Humulus.) f. Schnabelkerfe. rv^m|| ff "i- Pemphigus Boyeri, Pass. — Aphis '^/^C^l V radicum, Foi/sc (Siehe Zea.) 5. Schizoneura venusta, iVf.Sö, entdeckte Prof. Giov. Passerini im Herbst an den Wurzeln von Panicum glabruni, Seta Stock Photo

RMMCRC1X–. !ea Mays. 38. Gattung. Bartgras. Andropogon. 39. Gattung. Hirse, Fennich, Panicum. a. K il f e r. 1. Agriotes segetis, L. (Nach Taschen- berg.) b. Falter. 2. Erebia Medusa, F. Die Kaupe lebt nach Ueberwiuteruug im April au Panicum, Se- taria u. a. Der Falter fliegt Ende Mai, Juni auf Waldwiesen. (Wilde.) 3. Botys silacealis, 11h. - nubilalis, IIb. (Siehe Humulus.) f. Schnabelkerfe. rv^m|| ff "i- Pemphigus Boyeri, Pass. — Aphis '^/^C^l V radicum, Foi/sc (Siehe Zea.) 5. Schizoneura venusta, iVf.Sö, entdeckte Prof. Giov. Passerini im Herbst an den Wurzeln von Panicum glabruni, Seta

Forest entomology . Fig. 276. — Wing of Schizoneura ulnii, ivith third vein once forked. which serve for the exudation of a liquid substance known as honeydew ; others have none.. Fig. 277.—Wing 0/Pemphigus pallidum,ivith third vein straight. Fig. 278.—Wing o/Chermes abietis,with third vein straight. The honey-dew itself is a substance which has given rise to a gooddeal of interesting thought and speculation. It is of a saccharinenature, and is consequently sought after by other insects, more APHIDID^E. 293 especially ants, which not only sip the juices but extract the honey-dew from the aphis Stock Photo

RM2ANAMD0–Forest entomology . Fig. 276. — Wing of Schizoneura ulnii, ivith third vein once forked. which serve for the exudation of a liquid substance known as honeydew ; others have none.. Fig. 277.—Wing 0/Pemphigus pallidum,ivith third vein straight. Fig. 278.—Wing o/Chermes abietis,with third vein straight. The honey-dew itself is a substance which has given rise to a gooddeal of interesting thought and speculation. It is of a saccharinenature, and is consequently sought after by other insects, more APHIDID^E. 293 especially ants, which not only sip the juices but extract the honey-dew from the aphis

A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . Puncturing with ovipositor. Grasshopper Orcheliranm (c.) Attacking and eating holes in ripe fruit Ind ian Ceton ia 140 INSECT ENEMIES OF THE THE APPLE-TREE ROOT LOUSE. {Schizoneura lanigera Hausra.)This plant louse, which appears in two forms, has become quiteplentiful in portions of the state within the past few years. One ofthese forms (Fig. 1) works upon th Stock Photo

RM2AN7WXT–A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . Puncturing with ovipositor. Grasshopper Orcheliranm (c.) Attacking and eating holes in ripe fruit Ind ian Ceton ia 140 INSECT ENEMIES OF THE THE APPLE-TREE ROOT LOUSE. {Schizoneura lanigera Hausra.)This plant louse, which appears in two forms, has become quiteplentiful in portions of the state within the past few years. One ofthese forms (Fig. 1) works upon th

Annual report of the Agricultural Experiment Station of the University of Minnesota . grass.Bisulphide sells for from 12 cts. to 15 cts. per lb. in 5 lb. lots inMinneapolis. Only one grade quoted here. Taylors FumaCarbon Bisulphide has been quoted in Cleveland, Ohio, at 10 cts.per lb. in 50 lb. cans. Robins are very fond of this grub and can frequently be seenlistening intently for any sound from beneath the sod which willbetray the presence of the delicate morsel. Once heard it takesbut little effort on the part of the bird to pull the grub from itsretreat. WOOLLY APHIDS.ON APPLE: Schizoneura Stock Photo

RM2AWP6JX–Annual report of the Agricultural Experiment Station of the University of Minnesota . grass.Bisulphide sells for from 12 cts. to 15 cts. per lb. in 5 lb. lots inMinneapolis. Only one grade quoted here. Taylors FumaCarbon Bisulphide has been quoted in Cleveland, Ohio, at 10 cts.per lb. in 50 lb. cans. Robins are very fond of this grub and can frequently be seenlistening intently for any sound from beneath the sod which willbetray the presence of the delicate morsel. Once heard it takesbut little effort on the part of the bird to pull the grub from itsretreat. WOOLLY APHIDS.ON APPLE: Schizoneura

Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 41.—Spongy Fungus (Scorias spongiosa Schw.), found in the honey dew of Schizoneura: (1) natural size; (2) portion of fertile branch much enlarged; (3) ascospores; (4) three sporidia (from Ellis Pyrenomycetes). For the root form, bisulphide of carbon is now used. (Careshould be taken not to injure the tree with this agent; consultthe Experiment Station). Strong soap washes are also used onroots of nursery stock, etc. INSECTS INJURIOUS IN 1902. 45 ON ELM : Schizoneura americana, Riley.Observed in a few ins Stock Photo

RM2AWP5X4–Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 41.—Spongy Fungus (Scorias spongiosa Schw.), found in the honey dew of Schizoneura: (1) natural size; (2) portion of fertile branch much enlarged; (3) ascospores; (4) three sporidia (from Ellis Pyrenomycetes). For the root form, bisulphide of carbon is now used. (Careshould be taken not to injure the tree with this agent; consultthe Experiment Station). Strong soap washes are also used onroots of nursery stock, etc. INSECTS INJURIOUS IN 1902. 45 ON ELM : Schizoneura americana, Riley.Observed in a few ins

A handbook of the destructive insects of Victoria : with notes on the methods to be adopted to check and extirpate them . nd reiiulations shall be deemed o-uiltv of a misdemeanour,and upon conviction thereof shall l)e punishable by a fineof not less than twenty-five nor more than one hundreddollars.—Matiiew Cooke, Chief Executive Horticulturaland Health Officer.—Sacramento, November 12, 1881. 34 DESTEUCTIVE INSECTS OF VICTORIA : PLATE I. Woolly Aphis, or Amepjcax Blight (Schizoneura lanigera). Fig.1. Portion of stem of apple, showing downy covering to young insects.(From nature.) 2a. Wingless Stock Photo

RM2AN1MP5–A handbook of the destructive insects of Victoria : with notes on the methods to be adopted to check and extirpate them . nd reiiulations shall be deemed o-uiltv of a misdemeanour,and upon conviction thereof shall l)e punishable by a fineof not less than twenty-five nor more than one hundreddollars.—Matiiew Cooke, Chief Executive Horticulturaland Health Officer.—Sacramento, November 12, 1881. 34 DESTEUCTIVE INSECTS OF VICTORIA : PLATE I. Woolly Aphis, or Amepjcax Blight (Schizoneura lanigera). Fig.1. Portion of stem of apple, showing downy covering to young insects.(From nature.) 2a. Wingless

Report of the State Entomologist on injurious and other insects of the state of New York . Chraniesus work in hickory PLATE 17193 52 Hylesinus aculeatus Say, work in ash 194 Plate 17. Hylesinus work in ash INDEX abietis, Chermes, 54-55. acericola, Phenacoccus, 41, 60, 62. aculeatus, Hylesinus, 111-12. Micracis, see suturalis.aerodromia, Siphlonisca, 721^7-^.aesculi, see xylographus.affaber, Dryocoetes, loi.affinis. Xyieborus, 151.agrimoniae, Contarinia, 63.Agriotes mancus, 65.Alsophila pometaria, 45, 62-alternans, see subcostulatus.alutaceus, Crypturgus, 94.americana, Schizoneura, 63.ainerican Stock Photo

RM2AWJ8WK–Report of the State Entomologist on injurious and other insects of the state of New York . Chraniesus work in hickory PLATE 17193 52 Hylesinus aculeatus Say, work in ash 194 Plate 17. Hylesinus work in ash INDEX abietis, Chermes, 54-55. acericola, Phenacoccus, 41, 60, 62. aculeatus, Hylesinus, 111-12. Micracis, see suturalis.aerodromia, Siphlonisca, 721^7-^.aesculi, see xylographus.affaber, Dryocoetes, loi.affinis. Xyieborus, 151.agrimoniae, Contarinia, 63.Agriotes mancus, 65.Alsophila pometaria, 45, 62-alternans, see subcostulatus.alutaceus, Crypturgus, 94.americana, Schizoneura, 63.ainerican

. Report of the ... meeting. PLAN «T DE. AUSTRALASIAN ASSOC. ADV. 8C , VOL. I. 1888. PLATE XVII Effect of IMiqration from Different Centres of Origin, Approximate Order of the Appearance of CharacteristicGenera of Plants in the Upper Pal>eozoic andMesozoic Rocks in Europe and Australasia. As arranged by R. M. JOHNSTON, F.LS. middleT CENTRES -i- EUROPEAN Rocks. Australasian Rooks. • Schizoneura • Phyllotheca *? Podozamites t • PterophyUum t • Salisburia • Gingkophyllum • Baiera • Thinnfeldia J • Glcssopteris • Schizoneura t Alethopteris?f Neuropteris tt Odontopteris tt Pecopteris tt Sphenopt Stock Photo

RM2AGDKPG–. Report of the ... meeting. PLAN «T DE. AUSTRALASIAN ASSOC. ADV. 8C , VOL. I. 1888. PLATE XVII Effect of IMiqration from Different Centres of Origin, Approximate Order of the Appearance of CharacteristicGenera of Plants in the Upper Pal>eozoic andMesozoic Rocks in Europe and Australasia. As arranged by R. M. JOHNSTON, F.LS. middleT CENTRES -i- EUROPEAN Rocks. Australasian Rooks. • Schizoneura • Phyllotheca *? Podozamites t • PterophyUum t • Salisburia • Gingkophyllum • Baiera • Thinnfeldia J • Glcssopteris • Schizoneura t Alethopteris?f Neuropteris tt Odontopteris tt Pecopteris tt Sphenopt

Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . Fig. 273.—Pine Lachnus. A head and beak, lb labrum, m mandibles; a, larva, male; 6, female, bodyfilled with eggs; c, papa (yellowish); g, odoriferous gland; h, orifice of the honey-tube —GisslerdeJ. 143. The white pine schizoneura. Schizoneura pinicola Thomas. Order Hemiptera ; family Aphid^e. Feeding on the tender shoots of the young white pines in Illinois, their presenceindicated by slender snow-white silky webs, and usually cover Stock Photo

RM2AX285F–Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . Fig. 273.—Pine Lachnus. A head and beak, lb labrum, m mandibles; a, larva, male; 6, female, bodyfilled with eggs; c, papa (yellowish); g, odoriferous gland; h, orifice of the honey-tube —GisslerdeJ. 143. The white pine schizoneura. Schizoneura pinicola Thomas. Order Hemiptera ; family Aphid^e. Feeding on the tender shoots of the young white pines in Illinois, their presenceindicated by slender snow-white silky webs, and usually cover

Mitteilungen der Deutschen Dendrologischen Gesellschaft . k 3°^ Phiöesfnus thujäe 302* Phyllaphis fagi 3^9* Pityögenes bidentätus 301 Psylla alni 3*, 312 Raupen 288 Saperda carchärias 3°^ Schaum-Zikaden 33I- Schizoneura lanuginösa 3 ^ ulmi 310* ScölytusGeofTröyi 299*, 300 „ mültistridtus 299*, 300 Springläuse (Blattflöhe) 3 Tetraneura pallida 3^1* ulmi 310* Thuja-Bastkäfer 302 Tortrix buoliäna 205 Triebwickler, Kiefern- 205 Ulmen-Beutelgallenblattlaus 3^1 Ulmen-Gallenblattlaus 3^0 Ulmen-Rollblattlaus 31° Ulmen-Sphntkäfer 299, 300 Waldgärtner 3^2 -305 Weidenbohrer (Cossus) I97 Wolläuse 287, 291 Stock Photo

RM2AXJCE7–Mitteilungen der Deutschen Dendrologischen Gesellschaft . k 3°^ Phiöesfnus thujäe 302* Phyllaphis fagi 3^9* Pityögenes bidentätus 301 Psylla alni 3*, 312 Raupen 288 Saperda carchärias 3°^ Schaum-Zikaden 33I- Schizoneura lanuginösa 3 ^ ulmi 310* ScölytusGeofTröyi 299*, 300 „ mültistridtus 299*, 300 Springläuse (Blattflöhe) 3 Tetraneura pallida 3^1* ulmi 310* Thuja-Bastkäfer 302 Tortrix buoliäna 205 Triebwickler, Kiefern- 205 Ulmen-Beutelgallenblattlaus 3^1 Ulmen-Gallenblattlaus 3^0 Ulmen-Rollblattlaus 31° Ulmen-Sphntkäfer 299, 300 Waldgärtner 3^2 -305 Weidenbohrer (Cossus) I97 Wolläuse 287, 291

Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 58.—Rocky Mountain Locust: (a, a, a) female in different positions, ovi-positing; (b) egg pod extracted from ground, with end broken open;(c) a few eggs lying loose on the ground ; (d, e) show the earthpartially removed, to illustrate an egg mass already onplace, and one being placed ; (f) shows wheresuch a mass has been coveredup. (After Riley.) 68 INSECTS INJURIOUS IN 1902.. Fig. 59.—Woolly aphis (Schizoneura lanigera Hausm.) — (a) agamic female; (b) larval louse; (c) pupa; (d) winged female with anten Stock Photo

RM2AWP0PN–Annual report of the Agricultural Experiment Station of the University of Minnesota . Fig. 58.—Rocky Mountain Locust: (a, a, a) female in different positions, ovi-positing; (b) egg pod extracted from ground, with end broken open;(c) a few eggs lying loose on the ground ; (d, e) show the earthpartially removed, to illustrate an egg mass already onplace, and one being placed ; (f) shows wheresuch a mass has been coveredup. (After Riley.) 68 INSECTS INJURIOUS IN 1902.. Fig. 59.—Woolly aphis (Schizoneura lanigera Hausm.) — (a) agamic female; (b) larval louse; (c) pupa; (d) winged female with anten

Les zoocécidies des plantes d'Afrique, d'Asie et d'Océanie : description des galles, illustration, bibliographie détaillée, répartition géographique, index bibliographique . ent brune plus tard et reste attachéeau rameau, même après la chute des feuilles. Schizoneura lanuginosa Hartig FockeUjiSgS, p. 20; 1897, p. 25; 1897, p.io5; Houard, 1901 , p. 707, n°Go; 1908, p. 364,n2o5i,f5g.626, ® ; i9i2*,p.52,n»99. — Cécidie verdâtre, faisant saillie des deux côtés du limbe ethaute de 1-2 mm. ; région épiphylle arrondie; région hypo-phylle subconique, velue, munie dune ouverture étroite. Eriophyes ulmi Stock Photo

RM2ANDH7G–Les zoocécidies des plantes d'Afrique, d'Asie et d'Océanie : description des galles, illustration, bibliographie détaillée, répartition géographique, index bibliographique . ent brune plus tard et reste attachéeau rameau, même après la chute des feuilles. Schizoneura lanuginosa Hartig FockeUjiSgS, p. 20; 1897, p. 25; 1897, p.io5; Houard, 1901 , p. 707, n°Go; 1908, p. 364,n2o5i,f5g.626, ® ; i9i2*,p.52,n»99. — Cécidie verdâtre, faisant saillie des deux côtés du limbe ethaute de 1-2 mm. ; région épiphylle arrondie; région hypo-phylle subconique, velue, munie dune ouverture étroite. Eriophyes ulmi

. Report of the State Entomologist on injurious and other insects of the state of New York. nis Kieff. 09 Lab. Zool. Portici Bui., 4:115 Urticaceae (nettle family) Ulmus (elm) Reared from larvae under decaying bark. Felt 13m, p. 224 Itonid. Oligarccs ulmi FeltKnotty growths on the trunk and branches, usually covered with woolly plant-lice, on U. americana. Fig. 112. Felt 06b, p. 192 Aphid. Woolly elm louse, Schizoneura rileyi Thos.Aborted or blasted Vjuds. Fig. 113, pi. 10, fig. 3- FeU 15c, p. 171 Itonid. Dasyneura ulmea FeltBlasted leaf buds or adherent, immature leaf clusters. PI. 11, fig. 6 Stock Photo

RM2AG5NXR–. Report of the State Entomologist on injurious and other insects of the state of New York. nis Kieff. 09 Lab. Zool. Portici Bui., 4:115 Urticaceae (nettle family) Ulmus (elm) Reared from larvae under decaying bark. Felt 13m, p. 224 Itonid. Oligarccs ulmi FeltKnotty growths on the trunk and branches, usually covered with woolly plant-lice, on U. americana. Fig. 112. Felt 06b, p. 192 Aphid. Woolly elm louse, Schizoneura rileyi Thos.Aborted or blasted Vjuds. Fig. 113, pi. 10, fig. 3- FeU 15c, p. 171 Itonid. Dasyneura ulmea FeltBlasted leaf buds or adherent, immature leaf clusters. PI. 11, fig. 6

RM2CE59KE–. Insect pests of farm, garden and orchard . Fig. 122.—Grass root-louse (Schizoneura panicola); winged vivaparou.sfemale, a, antenna. (After Forbes.) each generation taking about sixteen days and there being abouttwelve generations during the season. Both winged and winglessagamic females occur throughout the summer, but late in Sep-tember and in October wingless forms which develop into truemales and females are produced. These mate and the femalesl^y eggs during October, most of them being carried by the antsto their nests, where the eggs are laid. Control.—Owing to the fact that the aphides

. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . and fed upon the woolly aphis(^Schizoneura lanigerci), which had clustered in masses in the cavities.This aphis sometimes does considerable damage to apple trees. Mr.Frost is of the ojiinion that the aphis also prevents the healing over ofwounds made by pruning. It is a well-known fact that clusters of thisaphis commonly occur on the callus which develops around wounds,appar Stock Photo

RM2CP02KY–. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . and fed upon the woolly aphis(^Schizoneura lanigerci), which had clustered in masses in the cavities.This aphis sometimes does considerable damage to apple trees. Mr.Frost is of the ojiinion that the aphis also prevents the healing over ofwounds made by pruning. It is a well-known fact that clusters of thisaphis commonly occur on the callus which develops around wounds,appar

. Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression . thoroughly applied. In oldorchards the trees should be scraped in winter or early spring and thenscrubbed with carbolic acid and soap solution. (See page 47.) THE WOOLLY APHIS. (Schizoneura lanigera.) Two forms of this insect are known, one attacking the trunks andlimbs and the other infesting the roots of trees. The white, flufly-masses on the limbs, which serve as a covering for the small, yellowishlice concealed beneath, are secreted by the insect an Stock Photo

RM2CHDM2B–. Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression . thoroughly applied. In oldorchards the trees should be scraped in winter or early spring and thenscrubbed with carbolic acid and soap solution. (See page 47.) THE WOOLLY APHIS. (Schizoneura lanigera.) Two forms of this insect are known, one attacking the trunks andlimbs and the other infesting the roots of trees. The white, flufly-masses on the limbs, which serve as a covering for the small, yellowishlice concealed beneath, are secreted by the insect an

. Annual report ... of the Board of Agriculture for the year ending June 30th ... rdered by a row of short prickles. When newly hatched, theyoung soldier bugs may be frequently found in the curl of the commonelm-leaf plant-louse (Schizoneura Americana), and also the commonapple aphis (Aphis mali), busily engaged in devouring the lice. Weshould specially look out that we do not destroy their eggs, as those ofan enemy. The full-grown insect is shown in plate m, Figure 2.Plate in, Figure 3, represents (Erax-apicalis* Wied,) a fly that feedsupon grasshoppers and other pests, but I have never seen Stock Photo

RM2CEYY3K–. Annual report ... of the Board of Agriculture for the year ending June 30th ... rdered by a row of short prickles. When newly hatched, theyoung soldier bugs may be frequently found in the curl of the commonelm-leaf plant-louse (Schizoneura Americana), and also the commonapple aphis (Aphis mali), busily engaged in devouring the lice. Weshould specially look out that we do not destroy their eggs, as those ofan enemy. The full-grown insect is shown in plate m, Figure 2.Plate in, Figure 3, represents (Erax-apicalis* Wied,) a fly that feedsupon grasshoppers and other pests, but I have never seen

RM2CEYJFE–. Die Forstinsekten Mitteleuropas; ein Lehr- und Handbuch. Fig. 180. Verschiedene Blattgallen an Ulme. A Blattrandgalle von Schizoneura uhni; B dreiBeutelgallen von Schiz. lanuginosa; C Taschengallen von Pemphigus uhni. — (N.) Pflanze einbezogen wurden. Es sind dies meist Knospenan-schwellungen und Triebspitzendeformationen, oft verbunden mitkurzbleibender Achse und überhäufter Blätterbildung. Sie werden teilsals Knopperngallen, teils als Kuckucks- oder Ananasgallen, teilsals Klunkern, Wirrzöpfe, Weidenrosen usw. bezeichnet. Als Er-zeuger kommen meist Hemipteren (z. B. Chernies als Erzeuger de

. Die Forstinsekten Mitteleuropas; ein Lehr- und Handbuch. ondere Beachtung verdient des weiteren das Nikotin, welches sowohlals Magengift als auch als Kontaktgift eine hervorragende Rolle einnimmt.Es wird gewöhnlich mit anderen Stoffen (wie Schmierseife, Spiritus, Kolo-phonium usw.), welche ein besseres Eindringen und Festhaften bewirken, an-gewendet. M. Schwartz empfiehlt vor allem folgende Gemische: gegen Raupen:^) gegen Chermes: gegen Schizoneura: 3 kg Tabakextrakt, 8 Teile N-Tabakextrakt, 3 Teile Tabakextrakt,3 „ Schmierseife, 10 „ Schmierseife, 5 „ denat. Spiritus, 144 „ Wasser, 140 „ Wa Stock Photo

RM2CEYDN4–. Die Forstinsekten Mitteleuropas; ein Lehr- und Handbuch. ondere Beachtung verdient des weiteren das Nikotin, welches sowohlals Magengift als auch als Kontaktgift eine hervorragende Rolle einnimmt.Es wird gewöhnlich mit anderen Stoffen (wie Schmierseife, Spiritus, Kolo-phonium usw.), welche ein besseres Eindringen und Festhaften bewirken, an-gewendet. M. Schwartz empfiehlt vor allem folgende Gemische: gegen Raupen:^) gegen Chermes: gegen Schizoneura: 3 kg Tabakextrakt, 8 Teile N-Tabakextrakt, 3 Teile Tabakextrakt,3 „ Schmierseife, 10 „ Schmierseife, 5 „ denat. Spiritus, 144 „ Wasser, 140 „ Wa

$. Die Forstinsekten Mitteleuropas; ein Lehr- und Handbuch. schwellungen an Zweigen und Wurzeln. Hierher sind z. B,die von der Blutlaus {Schizoneura lanigera) an Apfelbäumen oder dievon Lachnus exsiccator an der Buche erzeugten Wucherungen und Zer-störungen zu stellen. Folgen der Angriffe auf die Pflanzen. 209 Folgen der Angriffe auf die Pflanzen. Es sind hauptsächlich zwei Richtungen, in denen sich die Wirkung derInsektenangriffe bemerkbar machen: einmal in Deformationen, d. h. Ver-änderungen der normalen Form cU i IMlanze und sodann in einer all-gemeinen Seh w ä c h u n g der Lebens-kraft. ^ Stock Photo$

RM2CEYJCN–. Die Forstinsekten Mitteleuropas; ein Lehr- und Handbuch. schwellungen an Zweigen und Wurzeln. Hierher sind z. B,die von der Blutlaus {Schizoneura lanigera) an Apfelbäumen oder dievon Lachnus exsiccator an der Buche erzeugten Wucherungen und Zer-störungen zu stellen. Folgen der Angriffe auf die Pflanzen. 209 Folgen der Angriffe auf die Pflanzen. Es sind hauptsächlich zwei Richtungen, in denen sich die Wirkung derInsektenangriffe bemerkbar machen: einmal in Deformationen, d. h. Ver-änderungen der normalen Form cU i IMlanze und sodann in einer all-gemeinen Seh w ä c h u n g der Lebens-kraft. ^

. British vegetable galls, an introduction to their study. Galls (Botany). Plate 35.. 1 M 11 ..1 J'ynis Mains Linr GALLED BY Schizoneura lanigera Haus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Connold, Edward T. , 1862-1910. London, Hutchinson & co. Stock Photo

RMRH2X77–. British vegetable galls, an introduction to their study. Galls (Botany). Plate 35.. 1 M 11 ..1 J'ynis Mains Linr GALLED BY Schizoneura lanigera Haus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Connold, Edward T. , 1862-1910. London, Hutchinson & co.

. British vegetable galls, an introduction to their study. Galls (Botany). Plate 12.. Roots of Pynis J/a/i/s L Schizoneura fodiens Buckton. (HALF NAT. SIZE.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Connold, Edward T. , 1862-1910. London, Hutchinson & co. Stock Photo

RMRH2XM1–. British vegetable galls, an introduction to their study. Galls (Botany). Plate 12.. Roots of Pynis J/a/i/s L Schizoneura fodiens Buckton. (HALF NAT. SIZE.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Connold, Edward T. , 1862-1910. London, Hutchinson & co.

. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. b SCHIZONEUJU. undivided, splitting may often be seen commencing at the apex. Nerves parallel, undivided, approaching one another at the base and apex. Fructification consisting of compact strobili borne terminally. The large size and the common occurrence of splitting of the leaf-sheaths are the most important characters of this species (compare Text-figs. 1 and 2).. Fig. 1.—Schizoneura gondw Stock Photo

RMRF28XP–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. b SCHIZONEUJU. undivided, splitting may often be seen commencing at the apex. Nerves parallel, undivided, approaching one another at the base and apex. Fructification consisting of compact strobili borne terminally. The large size and the common occurrence of splitting of the leaf-sheaths are the most important characters of this species (compare Text-figs. 1 and 2).. Fig. 1.—Schizoneura gondw

RMRFA3N2–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. b SCHIZONEUJU. undivided, splitting may often be seen commencing at the apex. Nerves parallel, undivided, approaching one another at the base and apex. Fructification consisting of compact strobili borne terminally. The large size and the common occurrence of splitting of the leaf-sheaths are the most important characters of this species (compare Text-figs. 1 and 2).. Fig. 1.—Schizoneura gondw

RMRFA3MK–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. SCHIZONEURA.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Geology; Arber, E. A. Newell (Edward Alexander Newell), 1870-1918. London, Printed by order of the Trustees

. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Insects, Injurious and beneficial. 120 ORDER HEMIPTERA fields, upon which the hce maintain themselves until corn plants are available This species aj)pears to become so comj)letely adapted for underground life and the association with ants that it does not necessitate producing any winged generation for distribution or for alternation with another food plant. On account, of this relation to ants, one of the measures of control is to plow and harrow the ground thoroughly. Fig. 83.—Woolly aphis {Schizoneura la Stock Photo

RMRR1K38–. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Insects, Injurious and beneficial. 120 ORDER HEMIPTERA fields, upon which the hce maintain themselves until corn plants are available This species aj)pears to become so comj)letely adapted for underground life and the association with ants that it does not necessitate producing any winged generation for distribution or for alternation with another food plant. On account, of this relation to ants, one of the measures of control is to plow and harrow the ground thoroughly. Fig. 83.—Woolly aphis {Schizoneura la

RMRFA3MR–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. SCHIZONEURA. / Several casts of Schizoneura, which I regard as probably pith-casts, have been figured by Feistmantel,1 and one of these is shown in Text-fig. 3b. The ridges and grooves in these specimens are much more coarse than in the impressions of the external surface (Text-fig. 3a). Some imperfect casts of a similar nature are included in the British Museum collection. Feistmantelz has fi

RMRDBCED–. Fossil plants : for students of botany and geology . Paleobotany. IX] SCHIZONEURA GONDWANENSIS. 293 As already pointed out', some of the specimens of flat and broader stems referred by Feistmantei to Schizonevra are. Fig. 69. Schizoneura gondwanensis Feist, duced.) (After Feistmantei; slightly re- identical in appearance with stems which have been described from India and elsewhere as species of Phyllotheca. There are a few specimens of 8. gondwanensis in the British Museum, but the genus is poorly represented in Euro- pean collections. A similar plant was described in 1844 by Schimper and M

RMRFA3MD–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. mi Fig. 3.—Schizoneura gondwanensis, Feist, (a) External surface of a stem ; (b) pith (?)-cast. After Feistmantel. Nat. size.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Geolo

. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 126 ORDER HEMIPTERA fields, upon which the lice maintain themselves until corn plants are available This species appears to become so completely adapted for underground life and the association with ants that it does not necessitate producing any winged generation for distribution or for alternation with another food plant. On account of this relation to ants, one of the measures of control is to plow and harrow the ground thoroughly. Fig. 83.—Woolly aphis {Schizoneura lanig Stock Photo

RMRR1M6H–. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 126 ORDER HEMIPTERA fields, upon which the lice maintain themselves until corn plants are available This species appears to become so completely adapted for underground life and the association with ants that it does not necessitate producing any winged generation for distribution or for alternation with another food plant. On account of this relation to ants, one of the measures of control is to plow and harrow the ground thoroughly. Fig. 83.—Woolly aphis {Schizoneura lanig

RMRF28XF–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. SCHIZONEURA. / Several casts of Schizoneura, which I regard as probably pith-casts, have been figured by Feistmantel,1 and one of these is shown in Text-fig. 3b. The ridges and grooves in these specimens are much more coarse than in the impressions of the external surface (Text-fig. 3a). Some imperfect casts of a similar nature are included in the British Museum collection. Feistmantelz has fi

. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 374 EQUISETALES The Calamarian strobili were terminal on the axes, but they had a more elongated form than is usual in Equisetum (Fig. 200) : sometimes they. Schizoneura. Goth 'ancnsis. Two-thirds the natural size. (After O. Feistmantel, froir Engler and Prantl, Nat. PJhinzcnfam.) extended to a length of 30 cm. (Potonie). They differed also in their construction : the nearest to the Equisefum-type is the ancient Archaeo- calamites (Bornia)} characteristic of the oldest Carboniferous strata, and of the Stock Photo

RMRDXG05–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 374 EQUISETALES The Calamarian strobili were terminal on the axes, but they had a more elongated form than is usual in Equisetum (Fig. 200) : sometimes they. Schizoneura. Goth 'ancnsis. Two-thirds the natural size. (After O. Feistmantel, froir Engler and Prantl, Nat. PJhinzcnfam.) extended to a length of 30 cm. (Potonie). They differed also in their construction : the nearest to the Equisefum-type is the ancient Archaeo- calamites (Bornia)} characteristic of the oldest Carboniferous strata, and of the

RMRD8J69–. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ATTAOKINa THE BEANOHES, EiG. 13. No. 9.—The Woolly-louse of the Apple. Schizoneura lanigera (Hausm.). This is the same species as the apple-root plant-louse (No. 1), but in this form the insects attack the trunk and limbs of the apple-tree, living in clusters, and secreting over themselves small patches of a cotton-like covering. (See Fig. 13, where the insects are represented magnified.) They are often found about the base of twigs or suckers springing from the trunk, and also about the base of the

RMRDBCEY–. Fossil plants : for students of botany and geology . Paleobotany. IX] PHYLLOTHECA. 285 pith, as in Catamites. In the Calamitean casts the ridges and grooves of each internode usually alternate in position with those of the next, as in Equisetum (fig. 54, A), but in Phyl- lotheca, Schizoneura and Archaeocalamites there is no such regular alternation at the nodes of the internodal vascular strands.. Fig. 67. Phyllotheca ? J nat. size. From a South African specimen of Permo-Carboniferous age in the British Museum. In Phyllotheca and Schizoneura there are no casts of' infra- nodal canals' below

RMRDFX44–. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. FORMS OF MANTLE-GALLS. 533 and Wayfaring Tree (Viburnum Lantana) ciliated, whilst in the inflated galls of the Elm caused by the white woolly leaf-louse (Schizoneura lanuginosa), it is covered with fine hairs like velvet. The capitate galls on the foliage of Maples, Alders, and Limes, of the Guelder-rose and Strawberry, are scattered abundantly over the whole lamina; in the Sloe they stand out chiefly from the margin of the leaf, and in Elms they occur singly or in groups on its central portions. The

. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. Fig. 1052.—American Blight, magnified. Fig. 1051.—Pea Aphis, magnified. One of the more remarkable aphides, which attacks two or three out of my large collection of apple-trees, is the American Blight {Schizoneura lanuginosa, fig. 1052J. It lives upon the stems of the apple-trees, and when crushed stains linen like the cochineal: I remember it ever since I was a child, because I incurred the wrath of my nurse by staining my pinafores with its blood. It was supposed to h Stock Photo

RMRDT535–. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. Fig. 1052.—American Blight, magnified. Fig. 1051.—Pea Aphis, magnified. One of the more remarkable aphides, which attacks two or three out of my large collection of apple-trees, is the American Blight {Schizoneura lanuginosa, fig. 1052J. It lives upon the stems of the apple-trees, and when crushed stains linen like the cochineal: I remember it ever since I was a child, because I incurred the wrath of my nurse by staining my pinafores with its blood. It was supposed to h

RMRFA3M8–. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. sr iiizonixrv. 9 Zeillor' has recently figured a specimen showing two leaf-bearing branches attached to two successive nodes of a stem at an angle of 45° to 50°. These are the first instances in which such branches have been found attached. Some years ago Mr. Etheridge, jun.,2 figured some imperfect fragments of a Schizoneura, from a coal-seam near the top of the Upper Productive Coal-measures

. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. Schizoneura. Goth 'ancnsis. Two-thirds the natural size. (After O. Feistmantel, froir Engler and Prantl, Nat. PJhinzcnfam.) extended to a length of 30 cm. (Potonie). They differed also in their construction : the nearest to the Equisefum-type is the ancient Archaeo- calamites (Bornia)} characteristic of the oldest Carboniferous strata, and of the upper Devonian (Fig. 201). Its strobilus is essentially like that of Equisetum, having no sterile bracts intervening between the whorls of eight to ten spora Stock Photo

RMRDXG01–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. Schizoneura. Goth 'ancnsis. Two-thirds the natural size. (After O. Feistmantel, froir Engler and Prantl, Nat. PJhinzcnfam.) extended to a length of 30 cm. (Potonie). They differed also in their construction : the nearest to the Equisefum-type is the ancient Archaeo- calamites (Bornia)} characteristic of the oldest Carboniferous strata, and of the upper Devonian (Fig. 201). Its strobilus is essentially like that of Equisetum, having no sterile bracts intervening between the whorls of eight to ten spora

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