78 



INJURIOUS INSECTS OF KANSAS. 



OODLIN MOTH. 



{Carpocapsa pomonella Linn.; Order, Lepidoptera.) 



Diagnosis. — Infesting the apple (in fruit); while the apples 

 are on the tree, small masses of reddish-brown castings j^rotrud- 

 ing from a hole on the side of the apple or at the eye (the end 

 opposite the stalk end ) ; on cutting into these apples, a soft, flesh- 

 colored, brown-headed, sixteen-legged larva or grub, boring and 

 eating around the core. Many infested apples fall to the ground ; 

 from these apples the grubs have usually escaped. In the winter 

 many small, tough cocoons on the apple barrels (between hoops 

 and staves). 



Description and Life- history. — The Codlin Moth is probably 

 the most seriously injurious of apple pests. The adult is a small, 

 ashy-gray and brown moth, its wings expanding about three-fourths 



of an inch. Each fore 

 wing has a lai'ge, oval, 

 tawny-brown spot on its 

 hinder margin. The 

 moths appear about May 

 1, from hibernating chrys- 

 alids, and lay their eggs 

 singly at the blossom ends 

 of the young apples. The 

 egg hatches in about one 

 week, and the young larva 

 begins eating its way into 

 the core. The newly- 

 hatched grub is white, 

 with blackish head. As 

 it grows older and larger 

 the body becomes pinkish 

 or flesh-colored, and the 

 head brown. When full- 

 grown, it measures about three-fourths of an inch in length 

 The castings are pushed out of the entrance hole at the blossom 

 end of the apple, or a new and larger hole is made at the side 

 of the fruit. The 'larviB become full-grown in three or four 

 weeks after hatching, by which time the infested fruit has gener- 



FiG. 43. Codlin Moth; a, section of infested ap- 

 ple, showing burrows and channel of exit; 

 b, point of egg-laying, and entrance of young 

 larva; e, larva; h, head and first segment of 

 larva, enlarged; i, the cocoon; d, chrysalis, 

 which is Inclosed in the cocoon; /, g. moth. 



