. A manual of injurious insects [microform] : with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit : to which is appended a short introduction to entomology. Insect pests; Agricultural pests; Entomology; Insectes nuisibles, Lutte contre les; Ennemis des cultures, Lutte contre les; Entomologie. 216 ELM. ELM. Elm-bark Beetle. Scolytus destructor, Oliv.. Beetle magnified; nat. length, l.J to 3 lines; workings in Elm-bark, showing central mother-gallery, and maggot-galleries from it. This beetle is well known as causing much injury to Elm trees by means of
![. A manual of injurious insects [microform] : with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit : to which is appended a short introduction to entomology. Insect pests; Agricultural pests; Entomology; Insectes nuisibles, Lutte contre les; Ennemis des cultures, Lutte contre les; Entomologie. 216 ELM. ELM. Elm-bark Beetle. Scolytus destructor, Oliv.. Beetle magnified; nat. length, l.J to 3 lines; workings in Elm-bark, showing central mother-gallery, and maggot-galleries from it. This beetle is well known as causing much injury to Elm trees by means of Stock Photo](https://c8.alamy.com/comp/REPF0R/a-manual-of-injurious-insects-microform-with-methods-of-prevention-and-remedy-for-their-attacks-to-food-crops-forest-trees-and-fruit-to-which-is-appended-a-short-introduction-to-entomology-insect-pests-agricultural-pests-entomology-insectes-nuisibles-lutte-contre-les-ennemis-des-cultures-lutte-contre-les-entomologie-216-elm-elm-elm-bark-beetle-scolytus-destructor-oliv-beetle-magnified-nat-length-lj-to-3-lines-workings-in-elm-bark-showing-central-mother-gallery-and-maggot-galleries-from-it-this-beetle-is-well-known-as-causing-much-injury-to-elm-trees-by-means-of-REPF0R.jpg)
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. A manual of injurious insects [microform] : with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit : to which is appended a short introduction to entomology. Insect pests; Agricultural pests; Entomology; Insectes nuisibles, Lutte contre les; Ennemis des cultures, Lutte contre les; Entomologie. 216 ELM. ELM. Elm-bark Beetle. Scolytus destructor, Oliv.. Beetle magnified; nat. length, l.J to 3 lines; workings in Elm-bark, showing central mother-gallery, and maggot-galleries from it. This beetle is well known as causing much injury to Elm trees by means of the galleries that it bores between the bark and the wood, mainly in the soft inner bark, but so as also to leave just a slight trace of the working on the surface of the wood. The females may be seen early in June, making their preparations for egg-laying by working their way along the bottom of cracks in the bark, which they widen for some distance before beginning to burrow, so that the real opening of the galleries may bo at some distance from the heap of rejected matter or little heap of wood-dust that marks the first point of entrance. The male is present for only a short time after the burrow is begun, before egg-laying commences.. 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.. Ormerod, Eleanor A. (Eleanor Anne), 1828-1901. London : Simpkin, Marshall, Hamilton, Kent