REPORT OF THE STATE ENTOMOLOGIST I909 29 



The moth and its habits. The moth has a wing spread of 

 about 34 of an inch and is an obscure, grayish brown and bronze 

 color. Near the tip of the forewing there is a large, dark brown 

 spot marked with streaks of bronze or gold. The male is distin- 

 guished by the black pencil of hairs on the upper surface oif the 

 hind wing and a black spot on the under surface of the forewing. 

 The emergence of the moths from the cocoon, like the transforma- 

 tion of the larvae to the pupae, extends over a considerable period. 



There is a correlation between the flight of the parent insects 

 and the blossoming of the apples, though the latter varies somewhat 

 according to weather conditions and the variety. Observations 

 extending over three years [Sanderson '08] show that the first 

 moth in New Hampshire appeared from a few to about 10 days 

 after the petals fell, the majority of the moths being abroad two 

 or three weeks after the blossoms dropped and the last adults 

 being observed nearly a month after the falling of the bloom. 

 The records of several observers show that moths may live from 

 two to about four Aveeks. The parent insect is nocturnal though 

 not attracted to lights to any extent, feeds freely upon cut 

 fruits and sweets, and on account of its colors harmonizing with 

 the bark upon which it rests, usually escapes observation. 



It is difficult to reconcile Melander's behef ['08] that the 

 codling moth may be so local as to even have a home tree, with 

 the contradictory results obtained in some experiments on ad- 

 jacent trees, where the infestation appeared to increase with the 

 number of sprayings. Professor Ball ['04] states that a few 

 moths may be carried by the wind several miles. It is inter- 

 esting to note that observations by Cordley ['02] suggest that 

 the moths may not deposit eggs in Oregon when the evening 

 temperature falls much below 60" F. 



Eggs. The small, whitish or yellowish eggs of this insect may 

 be deposited upon the foliage or fruit, and to the unaided eye, 

 appear, when fresh laid, much like a minute drop of milk about 

 the size of a small pin head. A careful study [Sanderson '08] 

 shows that out of 796 eggs actually observed, 787 were deposited 

 upon the leaves, nearly equal numbers being upon the upper and 

 under surface, while only seven were seen on the fruit and five 

 on the bark. These eggs were from a few to 16 or even 28 

 inches from any fruit, with an average distance of approximately 

 9, inches. The record shows that the moths make no particular 

 effort to deposit the eggs upon the fruit, and also that large num- 



