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Wisconsin State Horticultural Society. 



scarcely ever see. Many people have never seen one. They have 

 no idea what the moth is, and one reason is, that it is very small. 

 Another is, that it is a night flyer; and another is, its habit of 

 flitting about in such a way that you can scarcely keep your eyes 

 upon it. But if you store apples in a cellar, and keep them late in 

 the spring, you will find plenty of the moths on your cellar 

 ^windows, that you can study at your leisure. I must say, that, with 

 ■all my experience, I have never seen one out of doors in my life. 

 One great difficulty in contending with the codling moth is, 

 that, like the potatoe beetle, it has more than one generation in one 

 year; that is, it has two or three successive broods. The first brood 

 of codling moth worms come to maturity and lay another set of 

 eggs; and I think that the second brood also, in some cases, may 



Fig. 23. Codling Moth. 



lay eo-o-s that come to perfection the same year. I am certain that 

 ihere are two broods. The first one appears pretty early. I do 

 jDot know exactly the date at which we find the first larvae, but I 

 ibink it is about the first of July. The insect lays an egg in the 

 calyx of the apple or pear; the egg hatches, and the worm crawls 

 out a little sideways, living upon the surface of the apple until it 

 gets to a certain stage of development, and then it goes toward the 

 center, for the core; then it bores up the core toward the stem; 

 aad the hope of the insect is, apparently, that, in doing all that, it 

 i] cause the apple to drop. The habit of the larva is this: 

 When it comes to maturity in the apple, it has three courses open 



