INSECT PESTS OF GARDEN AND FIELD 217 
The Codling Moth does much damage wherever apple- 
growing is an important industry, the annual loss caused 
in such states as New York, Ohio, and Illinois ranging from 
one to two million dollars and sometimes even more. This 
small, dark-gray moth lays her eggs in the spring on the sur- 
face of the young apple a week or ten days after the petals 
have fallen. A female has been known to lay as many as 
85 eggs, usually one to an apple so that she may ruin a great 
many. As soon as the larve are hatched, they enter the 
young apple at the calyx, 
eat their way to the core, 
complete their growth in 
two or three weeks, and 
then eat their way out 
through the sides of the 
apple. They then crawl to 
the trunk of the tree and 
make their cocoons under 
the bark. In warm weather 
these complete their trans- 
formation in two or three 
weeks, and the adults come 
forth to start another brood 
on the late apples. We find some of these later larve in 
the fruit when we cut it; but some of them safely pass 
the’ winter in the orchard and then attack the next year’s 
crop. 
The treatment for the codling moth is to spray the tree 
in the spring just after the petals have fallen and before the 
calyx has, closed. The larva then gets his medicine when 
he starts to enter the apple. Birds and beetles are the natural 
enemies of the moth. 
CODLING 
