22 EBBRHARTH OUTLINES OF 



with copper, and situated on the hinder margin of each 



fore-wing. It generally hibernates as a pupa, emerging in 



the spring about the time the petals of the apple-blossoms fall. 



The female lays her eggs in the calyx or eve of the 



Fig. 23. Larva of Codling Moth. 



forming apple. These eggs hatch in about a week and the 

 grub eats into the core. The larvae become full-grown in 

 three or four weeks. About this time the prematurely 

 ripened fruit falls to the ground. 



Sometimes the worm escapes before and sometimes not 

 UDtil after the fruit has fallen. Those leaving before crawl 

 down the trunk, or lower themselves by a silken thread, 

 which they have the power of spinning. 



The first and last segments of the body are at first black 

 but become brown as the grub matures ; the other segments 

 each have six or eight spots on them, from which arise little 

 hairs. 



The larva pupates in a cocoon placed in a crevice of 

 the bark or in some other sheltered place. There are two 

 yearly broods. 



Remedies. Ichneumon flies destroy some. The fallen 

 fruit should be gathered or the hogs allowed to devour it, 

 thus destroying many larvae. The best method, however, 

 is to put bands around the trunks of the trees. The larvae 

 will pupate in these and may be gathered and destroyed. 

 These bands should be examined every ten days or less 

 from the last of May to the last of August. 



