232 SUCCESSFUL FRUIT CULTURE 



leaves, doing an immense amount of damage, and there 

 are few plants that do not have a specific kind that 

 feeds upon them. The apple aphis is green in color and 

 often feeds all summer, but generally only during the 

 early part of the season. Figure 121 shows two forms 

 enlarged and one winged form of natural size. 



Remedy This insect is destroyed by the use of 

 whale-oil soap, by tobacco water and by kerosene applied 

 as for scale insects. If the leaves are much curled 

 it is best to pick off those most curled before spraying 

 is done, or the ends of the shoots are sometimes 



removed and burned or 

 dropped into kerosene. 

 The Codlin Moth 

 (Carpocapsa pomo- 

 nella) Figure 122 

 illustrates a part of an 

 apple injured by this 

 insect, a shows the 

 Fig. 121-The Apple Aphis burrow ; I, the point at 



which the worm entered ; e, full grown worm ; d, pupa ; 

 f, moth with folded wings; g, moth with expanded 

 wings; h, head enlarged; i, cocoon which encloses the 

 pupa. This is perhaps the most destructive insect 

 attacking this fruit. It flies at night and lays its eggs 

 on the leaves or surfaces of the apple. The larva then 

 moves about until it finds the calyx of the apple, when 

 it enters and feeds until full grown, coming out at some 

 other place and dropping by a web to the ground, or 

 crawls to some shelter, as the crevice in the bark or 

 other dry place, where it spins its cocoon. Generally 

 but one brood is produced in a season, but under 

 favorable conditions,' the larvae that come out in June 

 or July may complete their changes and lay another 

 brood of eggs in August or September th'at will hatch 

 and injure the fruit late in the season. This brood 



