100 



INSECTS INJURIOUS TO THE APPLE 



part, enter through the blossom end, and bore into the core (Fig. 

 124). The seeds appear to be very attractive to this pest. In 

 three or four weeks the caterpillar is full grown and issues from the 

 side of the apple, seeking a place for spinning its cocoon. If the 



FIG. 122. Codling moth, much enlarged. 



apple is still on the tree, the larva lets itself down to the ground 

 by a silken thread. 



Control. In the winter time woodpeckers seek out and devour 

 the larvse and cocoons beneath the old bark scales. These birds 



FIG. 123. Codling moth larva, much enlarged. (After Slingerland.) 



should be attracted to orchards by hanging up suet in the winter. 

 All fallen fruit should be disposed of by the use of stock or gathered 

 and destroyed in other ways. 



The chief measure of control consists, of course, in spraying 

 with arsenate of lead or with arsenate of lead combined with a 

 fungicide, in order to control fungous diseases at the same time 



