. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. the sweets, and by their busy bustle draw attention to the mischief progressing. With a magnifying lens the authors of the injury may be observed immersed in the sap about the axils of the leaves. This insect is known as the Pear-tree Psylla, a small, yellow, jumping creature, flattened in form, and provided with short legs, a broad head, and sharp beak. With the beak are made the punctures from which the sap exudes. In rare instances they occur in immense ^i<3. 151. numbers, when almost every le
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. the sweets, and by their busy bustle draw attention to the mischief progressing. With a magnifying lens the authors of the injury may be observed immersed in the sap about the axils of the leaves. This insect is known as the Pear-tree Psylla, a small, yellow, jumping creature, flattened in form, and provided with short legs, a broad head, and sharp beak. With the beak are made the punctures from which the sap exudes. In rare instances they occur in immense ^i<3. 151. numbers, when almost every leaf on a tree will seem to be affected; all growth is at once arrested, and frequently the tree loses a considerable portion of its leaves. When in the pupa state with the wings developing, they present the appearance shown in Fig. 151; a represents the under side, b the upper side; the perfect winged insect is shown in Fig. 152, all highly magnified. The color of the pupa is deep orange-red, the thorax striped with black, and the abdomen blackish brown. Towards the end of the summer they attain matu- rity, when they are fur- nished with transparent wings; the head is deeply notched in front; color orange-yellow, with the abdomen greenish. Length one-tenth of an inch. Remedies.—Paint the twigs with a strong solution of soft- soap, as recommended for No. 2, or syringe the trees with strong soapsuds. Fig. 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 Saunders, William, 1836-1914. Philadelphia, J. B. Lippincott & Co
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1883
