320 



SCHOOL ENTOMOLOGY 



They hatch in from five to ten days or about three to four 

 weeks after the blossoms fall. The young larva feeds a little 

 on the tender parts of a leaf, then crawls to the nearest 

 apple, which it usually enters through the blossom end, and 



FIG. 233. The codling moth (Cydia pomonella Linn.). 



a, egg greatly enlarged; b, young larva, hatching from egg; c, larva in winter 

 cocoon on inside of a bit of bark; d, pupa original; e, moth after Slingerland 

 all much enlarged. 



bores directly into the core where it devours the seeds. In 

 three or four weeks it eats its way out through the side of the 

 apple leaving its characteristic "worm-hole." The full 

 grown larva is about three-fourths of an inch long, whitish or 

 pinkish in color, with a brown head and faint tubercles over 



