White flies pests Black and White Stock Photos & Images

Horned Hereford bull standing in a field of tall grass Stock Photo

RF2E8GJWA–Horned Hereford bull standing in a field of tall grass

Living on Phnom Penh rubbish dump, ice cream seller, phnom penh , cambodia Stock Photo

RMB09MW7–Living on Phnom Penh rubbish dump, ice cream seller, phnom penh , cambodia

Black and white closeup of a fly Stock Photo

RFAW4K4Y–Black and white closeup of a fly

Two flies. Ink black and white drawing Stock Photo

RF2HPPND4–Two flies. Ink black and white drawing

RF2JNMWR9–A simple icon of unpleasant pests, flies

Black and White Thrips Insect Clipart. Coloring Page of Thrips Insect Stock Vector

RF2RWFD58–Black and White Thrips Insect Clipart. Coloring Page of Thrips Insect

. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. 1056 THE BOOK OF GARDENING. in late spring and again in July. Lime and soot, in the pro- portion of three parts of the former to one of the latter, should be distributed over the patches in June. Hand-picking should also be resorted to, while all pupa? and perfect insects should be destroyed. Were it not for the good â¢offices of several Ichneumon Flies these pests would be even still more numerous. Ichneumoned larvse should never be inter- fered with ; they are readily told by the groups of yellowish-white cocoons s Stock Photo

RMRDXD2G–. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. 1056 THE BOOK OF GARDENING. in late spring and again in July. Lime and soot, in the pro- portion of three parts of the former to one of the latter, should be distributed over the patches in June. Hand-picking should also be resorted to, while all pupa? and perfect insects should be destroyed. Were it not for the good â¢offices of several Ichneumon Flies these pests would be even still more numerous. Ichneumoned larvse should never be inter- fered with ; they are readily told by the groups of yellowish-white cocoons s

. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE TWO-WINGED FLIES 127 the adult state, these flies bear a general resemblance to the familiar house fly, although commonly they are some- what smaller and are easily distinguished by experts. The Cabbage Maggot, which is also known as the Radish Maggot, and the Turnip Maggot, is a good example of these insects. The adult flies appear in the cabbage fields when the plants are set out, and deposit their small white eggs about the base of the stalks. A few days later these Stock Photo

RMPG4G48–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE TWO-WINGED FLIES 127 the adult state, these flies bear a general resemblance to the familiar house fly, although commonly they are some- what smaller and are easily distinguished by experts. The Cabbage Maggot, which is also known as the Radish Maggot, and the Turnip Maggot, is a good example of these insects. The adult flies appear in the cabbage fields when the plants are set out, and deposit their small white eggs about the base of the stalks. A few days later these

RF2XFGHK4–Simple black and white icon of an electric mosquito swatter with a grid

RF2JNMX5D–Simple icon set of unpleasant pests, cockroaches, mites, mosquitoes, flies, spiders, etc.

RMRDDBB1–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE TWO-WINGED FLIES 127 the adult state, these flies bear a general resemblance to the familiar house fly, although commonly they are some- what smaller and are easily distinguished by experts. The Cabbage Maggot, which is also known as the Radish Maggot, and the Turnip Maggot, is a good example of these insects. The adult flies appear in the cabbage fields when the plants are set out, and deposit their small white eggs about the base of the stalks. A few days later these

. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 332 INSECTS INJURIOIS TO THE STRAWBERRY. there will be found in each, about the centre, a small, milk- white, footless grub, semi-transparent, with a smooth, glossy skin, a wrinkled surface, and a few fine, short hairs. Its jaws are pale brown, and its length at this period is about one- sixteenth of an inch, the body tapering a little towards each extremity. This insect doubtless changes to a chrysalis within tlie gall, from which the flies escape later in the season, or early the following spring. Stock Photo

RMPFXDCN–. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 332 INSECTS INJURIOIS TO THE STRAWBERRY. there will be found in each, about the centre, a small, milk- white, footless grub, semi-transparent, with a smooth, glossy skin, a wrinkled surface, and a few fine, short hairs. Its jaws are pale brown, and its length at this period is about one- sixteenth of an inch, the body tapering a little towards each extremity. This insect doubtless changes to a chrysalis within tlie gall, from which the flies escape later in the season, or early the following spring.

. Florists' review [microform]. Floriculture. FUBBUARY 15, 1917. The Florists' Review 15 VEGETABLES AND FRUITS DEPARTMENT! Ullllllllllllllillllllllllllllllilllllllllllllllllllllllllllliillllllllilllllllllllllllllllllilllllllllliy I WHO'S WHO SaSL and why I PESTS ON LETTUCE PLANTS. I have a good bed of lettuce, but green flies have settled on the plants. These I keep under control by using tobacco smoke, but now a white insect has made its home on the stalks and on the ground. It is not the white fly that attacks fuchsias; it has no wings. How can I get rid of it and prevent its future appearan Stock Photo

RMRRKY75–. Florists' review [microform]. Floriculture. FUBBUARY 15, 1917. The Florists' Review 15 VEGETABLES AND FRUITS DEPARTMENT! Ullllllllllllllillllllllllllllllilllllllllllllllllllllllllllliillllllllilllllllllllllllllllllilllllllllliy I WHO'S WHO SaSL and why I PESTS ON LETTUCE PLANTS. I have a good bed of lettuce, but green flies have settled on the plants. These I keep under control by using tobacco smoke, but now a white insect has made its home on the stalks and on the ground. It is not the white fly that attacks fuchsias; it has no wings. How can I get rid of it and prevent its future appearan

. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. 178 FARM FRIENDS AND FARM FOES. fortunate host. In a few weeks the maggots become full- grown, and then each burrows its way out through the skin of the victim. Once outside, each maggot spins some sort of silken cocoon within which it changes first to a pupa, and later to an adult Microgaster similar to the one that laid the feggs. There is much variation in the color, form, and arrange- ment of the cocoons of these Microgaster Flies. Some are white, others yellow. Some a Stock Photo

RMPG46AF–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. 178 FARM FRIENDS AND FARM FOES. fortunate host. In a few weeks the maggots become full- grown, and then each burrows its way out through the skin of the victim. Once outside, each maggot spins some sort of silken cocoon within which it changes first to a pupa, and later to an adult Microgaster similar to the one that laid the feggs. There is much variation in the color, form, and arrange- ment of the cocoons of these Microgaster Flies. Some are white, others yellow. Some a

RMRD9036–. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 332 INSECTS INJURIOIS TO THE STRAWBERRY. there will be found in each, about the centre, a small, milk- white, footless grub, semi-transparent, with a smooth, glossy skin, a wrinkled surface, and a few fine, short hairs. Its jaws are pale brown, and its length at this period is about one- sixteenth of an inch, the body tapering a little towards each extremity. This insect doubtless changes to a chrysalis within tlie gall, from which the flies escape later in the season, or early the following spring.

$. Injurious insects : how to recognize and control them . Insect pests; Insect pests. SMALL, ACTIVE WHITE FLIES OX FOLIAGE 205 and further obserA-ation will disclose the minute, slender insects that are doing the mischief. They are one twenty-fifth of an inch long, the larger winged indi^-iduals l.irowuish in color and the smaller wing- less forms somewhat pinkish. Winter is passed in debris at the base of the plants. There are several generations in the course of a summer. Remedies are rotation of crops, or burning over infested fields in winter. The Greenhouse White-fly {Akuwdcs vaporarionim Stock Photo$

RMPG26JA–. Injurious insects : how to recognize and control them . Insect pests; Insect pests. SMALL, ACTIVE WHITE FLIES OX FOLIAGE 205 and further obserA-ation will disclose the minute, slender insects that are doing the mischief. They are one twenty-fifth of an inch long, the larger winged indi^-iduals l.irowuish in color and the smaller wing- less forms somewhat pinkish. Winter is passed in debris at the base of the plants. There are several generations in the course of a summer. Remedies are rotation of crops, or burning over infested fields in winter. The Greenhouse White-fly {Akuwdcs vaporarionim

. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. A female Wtalte-banded Cherry Fruit-fly, much enlarged. (Orig- inal.) A female Black-bodied Cherry Fruit-fly, much enlarged. (Orig- inal.) maggots can lo seen clearly and also the filthy brown mass that r.,aults from their feeding. There are two species of these flies, whifli we have named from their respec- tive appearance, the White-banded Cherry Fruit-fly {lihagoletis cingulata) and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for reada Stock Photo

RMREN6BH–. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. A female Wtalte-banded Cherry Fruit-fly, much enlarged. (Orig- inal.) A female Black-bodied Cherry Fruit-fly, much enlarged. (Orig- inal.) maggots can lo seen clearly and also the filthy brown mass that r.,aults from their feeding. There are two species of these flies, whifli we have named from their respec- tive appearance, the White-banded Cherry Fruit-fly {lihagoletis cingulata) and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for reada

. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE FOUR-WINGED PARASITES 177 illustrated on page 174. The egg develops within the body of the host into a white footless maggot that soon matures as a larva and changes to a pupa, which in turn shortly changes into an adult Pimpla. Many of the Ichneumon Flies deposit their eggs within the burrows of larvae that bore in the stems of herbaceous plants or the bark or trunks of shrubs and trees. In such cases, it evidently would be difficult for the mother parasite to find pr Stock Photo

RMPG46AK–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE FOUR-WINGED PARASITES 177 illustrated on page 174. The egg develops within the body of the host into a white footless maggot that soon matures as a larva and changes to a pupa, which in turn shortly changes into an adult Pimpla. Many of the Ichneumon Flies deposit their eggs within the burrows of larvae that bore in the stems of herbaceous plants or the bark or trunks of shrubs and trees. In such cases, it evidently would be difficult for the mother parasite to find pr

RMRDDAWG–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. 178 FARM FRIENDS AND FARM FOES. fortunate host. In a few weeks the maggots become full- grown, and then each burrows its way out through the skin of the victim. Once outside, each maggot spins some sort of silken cocoon within which it changes first to a pupa, and later to an adult Microgaster similar to the one that laid the feggs. There is much variation in the color, form, and arrange- ment of the cocoons of these Microgaster Flies. Some are white, others yellow. Some a

. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE PREDACEOUS INSECTS 173 2. Examine a colony of plant lice careftilly. Try to find the white eggs, the footless larvae, or the curious brown puparia of some of the Syrphus Flies. Watch one of the larvas through a lens to see the way it impales its victims. 3. Read the account of the Robber Flies in The Insect Book, pages 141-143; of the Syrphus Fly in Stories of Insect Life, First Series, pages 50-51. Ants and Wasps 1. Watch the surface of an ant's nest to see if any ins Stock Photo

RMPG46BC–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE PREDACEOUS INSECTS 173 2. Examine a colony of plant lice careftilly. Try to find the white eggs, the footless larvae, or the curious brown puparia of some of the Syrphus Flies. Watch one of the larvas through a lens to see the way it impales its victims. 3. Read the account of the Robber Flies in The Insect Book, pages 141-143; of the Syrphus Fly in Stories of Insect Life, First Series, pages 50-51. Ants and Wasps 1. Watch the surface of an ant's nest to see if any ins

. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. Simuliidm, or Black Flies 105 white slime, which becomes darker, until finallyit becomes black just before the emerging of the larvae. The egg stage lasts a week. The larvae (fig. 75) are black, soft skinned, somewhat cylindrical in shape, enlarged at both ends and attenuated in the middle. The posterior half is much stouter than the anterior part and almost club- shaped. The head bears two large fan-shaped organs which aid in procuring food. Respiration is accomplished by means of three so- c Stock Photo

RMRE432B–. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. Simuliidm, or Black Flies 105 white slime, which becomes darker, until finallyit becomes black just before the emerging of the larvae. The egg stage lasts a week. The larvae (fig. 75) are black, soft skinned, somewhat cylindrical in shape, enlarged at both ends and attenuated in the middle. The posterior half is much stouter than the anterior part and almost club- shaped. The head bears two large fan-shaped organs which aid in procuring food. Respiration is accomplished by means of three so- c

RMRDDAWN–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE FOUR-WINGED PARASITES 177 illustrated on page 174. The egg develops within the body of the host into a white footless maggot that soon matures as a larva and changes to a pupa, which in turn shortly changes into an adult Pimpla. Many of the Ichneumon Flies deposit their eggs within the burrows of larvae that bore in the stems of herbaceous plants or the bark or trunks of shrubs and trees. In such cases, it evidently would be difficult for the mother parasite to find pr

$. Injurious insects : how to recognize and control them . Insect pests; Insect pests. SMALL, ACTIVE WHITE FLIES OX FOLIAGE 205 and further obserA-ation will disclose the minute, slender insects that are doing the mischief. They are one twenty-fifth of an inch long, the larger winged indi^-iduals l.irowuish in color and the smaller wing- less forms somewhat pinkish. Winter is passed in debris at the base of the plants. There are several generations in the course of a summer. Remedies are rotation of crops, or burning over infested fields in winter. The Greenhouse White-fly {Akuwdcs vaporarionim Stock Photo$

RMRDAMN1–. Injurious insects : how to recognize and control them . Insect pests; Insect pests. SMALL, ACTIVE WHITE FLIES OX FOLIAGE 205 and further obserA-ation will disclose the minute, slender insects that are doing the mischief. They are one twenty-fifth of an inch long, the larger winged indi^-iduals l.irowuish in color and the smaller wing- less forms somewhat pinkish. Winter is passed in debris at the base of the plants. There are several generations in the course of a summer. Remedies are rotation of crops, or burning over infested fields in winter. The Greenhouse White-fly {Akuwdcs vaporarionim

RMRDDAXT–. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. THE PREDACEOUS INSECTS 173 2. Examine a colony of plant lice careftilly. Try to find the white eggs, the footless larvae, or the curious brown puparia of some of the Syrphus Flies. Watch one of the larvas through a lens to see the way it impales its victims. 3. Read the account of the Robber Flies in The Insect Book, pages 141-143; of the Syrphus Fly in Stories of Insect Life, First Series, pages 50-51. Ants and Wasps 1. Watch the surface of an ant's nest to see if any ins

. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Cherry Fruit-flies on the fruit: (1) the Black- bodied Cherry Fruit-fly; (2) the White banded Cherry Fruit-fly. they cannot be distiuguislied except by a trained entomolojiist. They arc when lull grown about one-quarter of an incli long, nearly cylindrical, blunt at one end and tapering to a point at the other. Their color may be either white or yellowish. There is no head and no logs, but at tlie small end are two little black hooks used to tear the tissues of tlio fruit and set free the juice upon w Stock Photo

RMREN6B7–. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Cherry Fruit-flies on the fruit: (1) the Black- bodied Cherry Fruit-fly; (2) the White banded Cherry Fruit-fly. they cannot be distiuguislied except by a trained entomolojiist. They arc when lull grown about one-quarter of an incli long, nearly cylindrical, blunt at one end and tapering to a point at the other. Their color may be either white or yellowish. There is no head and no logs, but at tlie small end are two little black hooks used to tear the tissues of tlio fruit and set free the juice upon w

White flies pests Black & White Stock Photos

White flies pests Black & White Stock Photos

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