. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 234 INSECTS INJURIOUS TO THE GRAPE. less succulent, the lice seek other quarters, and many of them find their way to the roots of the vines and establish them- selves on the smaller rootlets. By the end of September the galls are usually deserted. In Fig. 241 we have this type Fig. f '"^r^t? ^*^©ii^ of the insect illustrated: a shows a front view of the young louse, and h a back view of the ^same, c the egg, d a section of one of the galls, e a swollen tendril, /, g, h, mature egg- bearin
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 234 INSECTS INJURIOUS TO THE GRAPE. less succulent, the lice seek other quarters, and many of them find their way to the roots of the vines and establish them- selves on the smaller rootlets. By the end of September the galls are usually deserted. In Fig. 241 we have this type Fig. f '"^r^t? ^*^©ii^ of the insect illustrated: a shows a front view of the young louse, and h a back view of the ^same, c the egg, d a section of one of the galls, e a swollen tendril, /, g, h, mature egg- bearing gall-lice, lateral, dorsal, and ventral views, i antennae, andj the two-jointed tarsus. When on the roots, the lice subsist also by suction, and their punctures result in abnormal swellings on the young rootlets, as shown at a in Fig. 242. These eventually decay, and this decay is not confined to the swollen portions, but involves the adjacent tissue, and thus the insects are induced to betake themselves to fresh portions of the living roots, until at last the larger ones become involved, and they, too, literally waste away. In Fig. 242 we have the root-inhabiting type, Radideola, illustrated: a, roots of Clinton vine, showing swellings; 6, young louse, as it appears when hibernating; c, d, antennae and leg of same; e, /, g, represent the more mature 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
