4 2 4 ECONOMIC ZOOLOGY AND ENTOMOLOGY 



it has been found worth while to tie bands of burlap around 

 the tree so that the larvae will find there suitable places to 

 pupate. During the summer these bands are examined often 



FIG. 197. The larva, or worm, of codling-moth, Cydia pomonella. 

 (Three times natural size; after Slingerland.) 



and any larvae or pupae found are destroyed. In the fall they 

 should be removed or very carefully examined to see that none 

 of the larvae pass the winter in them. 



FIG. 198. Cocoons of codling-moth larvae under bark on old apple 

 tree. An empty pupa case shows where the moth has issued from one of 

 the cocoons. (Natural size.) 



Spraying with Paris green or arsenate of lead must be relied 

 upon as the principal means for controlling this pest. Three 



