Codling moth 



A Two small apples, one end and the other side wormy. The former 

 is the most common method of injury by apple worms or larvae 

 of the first brood, while the other is very characteristic of larvae 

 of the second brood and is usually confined to points where 

 fruits touch or where a leaf and apple adhere. 



B Group of blossoms ready to spray and showing conditions just after 

 the petals drop. Note that the green sepal lobes are widely ex- 

 panded or drooping, and that conditions are therefore favorable 

 for tilling the calyx cup with poison. 



C Three mature apples showing the work of the apple worm or cod- 

 ling moth larva about the core, at the blossom end and an irregular 

 cavity at the side, a point where the full grown larvae frequently 

 escape 



D A piece of bark removed from the tree and showing on the under 

 surface the numerous cocoons in which the insects hibernate and 

 undergo their transformations from the caterpillar to the pupa 

 and moth 



1 Moth with wings expanded, natural size 



2 Moth resting on young apple, side view 



3 Moth resting on leaf, seen from above 



4 A portion of a pinkish apple worm or larva in a wormy apple 



5 Cocoon, as seen from the under side and showing the hole made 



by a woodpecker in search of the apple worm or larva 



6 Cell on the under side of the bark containing a codling moth 



worm or larva. Note its nearly doubled position. 



7 Upper surface of bark showing hole made by a woodpecker. 



The same condition as seen from the inner surface is repre- 

 sented at 5. 



8 Empty cocoon 



9 Group of old cocoons 



10 Two cocoons in which apple worms or larvae have been destroyed 



by fungus 

 ii Oval excavation in the bark made by the apple worm or larva 



prior to spinning its cocoon 

 T2 Newly made cocoon, the silken case being nearly obscured by 



particles of bark 



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