. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 64 INSECTS INJURIOUS TO THE APPLE. Wlien full grown, they all disappear about the same time, descending from the trees to the ground, where they con- ceal themselves under leaves, upon or slightly under the sur- face, and after a long time change to brown chrysalids, as shown in Fig. 58, and remain in the pupa state until late in June or early in July of the following year, when Fig. 58. ^\^q perfect moths appear. In the North there is only one brood during the year, but in the South they are said t
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 64 INSECTS INJURIOUS TO THE APPLE. Wlien full grown, they all disappear about the same time, descending from the trees to the ground, where they con- ceal themselves under leaves, upon or slightly under the sur- face, and after a long time change to brown chrysalids, as shown in Fig. 58, and remain in the pupa state until late in June or early in July of the following year, when Fig. 58. ^\^q perfect moths appear. In the North there is only one brood during the year, but in the South they are said to be double- brooded. They are very generally distributed, but seldom abundant, and, while preferring the apple, feed also on the plum, cherry, rose, thorn, and pear. As they maintain their gregarious habits during their en- tire larval existence, they can easily be gathered and destroyed, either by cutting off the limb and burning it, or by dislodg- ing them by suddenly jarring the limb, when they fall to the ground and may be trampled under foot. These larv^ are also destroyed by parasites belonging to the family of Ichneu- mons, but it is not yet knowTi to what species we are indebted for this friendly help. Nos. 25 and 26.—Canker-worms. Anisopteryx vernata (Peck), and A. pometaria Harris. These are two distinct species of insects which have been confounded under the common name of canker-worm, and, as their habits and appearance are so similar, it will be conveni- ent to treat of them under one heading. The moths from the species pometaria leave the ground chiefly in the fall, those of vernata partly in the fall, but more abundantly in the spring. A. pometaria, known as the Fall Canker-worm, will first claim our attention. Late in the season, when many of the leaves have fallen, and severe frosts have cut everything that is tender, a walk in the woods or through the orchard on a sunny afternoon is not void of interest. Here and there slen- der, delicate, silky-winged moth
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1883
