INJURIOUS INSECTS. 



87 



The Codling Moth. 



This well known insect (^Carpocapsa pomonella, Linn.), 

 Fig. 9, has a world-wide reputation and is now found wherever 

 apples are raised. It is 

 one of those ubiquitous 

 pests which holds its own 

 wherever it finds an apple 

 to devour, notwithstanding 

 the great varieties of cli- 

 mate and all attempts of 

 man for its extermination. 

 The females are on the 

 wing about the time the 

 young apples are begin- 

 ning to set, and lay a sin- 

 gle egg in the blossom 

 end of each apple, and 

 very successful are they 

 in searching out the young 

 f r u i t , however hidden 

 among the leaves. Each female lays al>oiit fifty eggs, which 

 are minute, flattened, scale-like bodies of a yellowish color. 

 They hatch in about a week, and the young larva bores at 

 once into the interior of the fruit. The habits and appear- 

 ance of the larva are too well known to require description. 

 After reaching maturity they escape from the apple and seek 

 for some sheltered place in which to pass their transformations. 



In Maine there is only one generation in a year, while 

 farther south there are two. I am not sure how it is in this 

 State, but I have as yet seen no evidence of a second genera- 

 tion. Some of the worms escape before the apples fall from 

 the trees, while others remain in the apples till after they 

 fall, when they escape and seek some place of shelter, as in 

 the crevices of the bark or corners of the boxes or barrels in 

 which the fruit is stored, where they spin a tough whitish 

 cocoon, in which they remain unchanged all winter and trans- 

 form to pupse the next spring, and the perfect moths emerge 

 in time to lay their eggs in the new crop of apples. 



It has been recommended to put bands of cloth or hay 



burrowings of the larva; b, the point of en- 

 trance; e, the full-grown larva; h, the ante- 

 rior part of the body; d, the pupa; i, the 

 cocoon; ./', the moth with the wings closed; 

 ff, the same with the wings expanded. 



