550 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



States east of the Rocky Mountains and to Oregon and Idaho. 

 The larvse feed on all of the common deciduous fruit trees, and 

 blackberry, but are most commonly injurious to apple. The 

 adult moth is a dark ash gray with broad yellowish bands across 

 the fore-wings, which expand about five-eighths inch. The 

 full-grown caterpillar is one-half inch long, of a light chestnut- 

 brown color, with the head, legs and thoracic shield dark brown 

 or black, smooth and shiny. 



Life History. The larvae hibernate in 

 small, oval, silken cases attached to the 

 bark of a twig. About the time the buds 

 begin to swell in the spring, the caterpillars 

 FIG. 484 The bud moth bore into them, thus early protecting them- 



(Tmetocera o c e 1 1 a n a selves from insecticides. As the young 



Schiff.) twice natural . 



size. (After W. E. leaves and flowers unfold, the caterpillars 



Britton.) form nests for themselves by tying the leaves 



together, and destroy the young foliage and flower buds, but do 

 not leave the nests in feeding. In New York, they become full 

 grown during June, 

 and transform to 

 pupee in the silk-lined 

 nests. About ten 

 days later the moths 

 emerge and lay the 

 eggs singly or in 

 small clusters on the 

 under surface of the 

 leaves. The egg is 

 disk-like, much flat- 

 tened, usually oval 

 in shape, and trans- 

 parent, resembling a 

 minute drop of 

 water. The eggs 

 soon hatch and the FIG. 485. Young apple leaves in fested by the 

 young caterpiUars bud moth larva ' (After W. E. Britton.) 



feed on the under sides of the leaves, protecting themselves by a 



