. Manual of fruit insects. ranches of apple trees (), and may firstreveal to the fruitgrower its presencein the orchard. It isusually a local pestin widely separatedorchards, but has a wide distribution over the eastern halfof Canada and in the United States from Maine to it is capable of doing much damage to foliage, it israrely a serious pest, and attacks only the apple, other fruit treesbeing apparently immune even when growing in close proximityto apples. A little brown pupa hibernates in the white cocoons,and when the leavesare unfolding in Mayit works halfway outof o
. Manual of fruit insects. ranches of apple trees (), and may firstreveal to the fruitgrower its presencein the orchard. It isusually a local pestin widely separatedorchards, but has a wide distribution over the eastern halfof Canada and in the United States from Maine to it is capable of doing much damage to foliage, it israrely a serious pest, and attacks only the apple, other fruit treesbeing apparently immune even when growing in close proximityto apples. A little brown pupa hibernates in the white cocoons,and when the leavesare unfolding in Mayit works halfway outof one end of thecocoon and thereemerges a tiny, lightbrown moth aboutYo of an inch inlength with each front wing marked with a large, dark brownspot (Fig. 61). In a few days, minute, pale green, elliptical,iridescent, roughened eggs are laid singly on the undersurface of the leaves. The tiny caterpillars which hatchfrom these eggs in from 6 to 10 days burrow directly intothe leaf, where for about a week they make narrow mines. Fig. 61. — Ribbed cocoon-makcr moth (X 8). APPLE INSECTS — BUDS AND FOLIAGE 57 nearly f of an inch in length. It then comes out of this mineand makes a thin, white, silken molting cocoon (Fig. 62),within which its skin is shed in a few days, and the greenish-brown caterpillar feeds openly on the surface of the leavesnear the edges. A second larger molting cocoon is made inabout 4 days. Two days later the caterpillars appear in theirlast stage and proceed to skeletonize the foliage for about a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1915
