[Fruit culture] . 6 APPLE PESTS AND INJURIES 33 transform into pupas and usually emerge as mature moths inabout 8 weeks from the time the eggs were laid. The charac-teristic appearance of the interior of an apple injured by codlingmoth larvas is shown in Fig. 17. Under certain conditions, a few of the larvas of the firstbrood hibernate during the winter, but in most parts of theUnited States only the larvas of the second brood of mothshibernate over winter. A rminber of cocoons are often foundon the under side of a piece of bark as it is pulled from anapple tree. The larvas of the second brood
[Fruit culture] . 6 APPLE PESTS AND INJURIES 33 transform into pupas and usually emerge as mature moths inabout 8 weeks from the time the eggs were laid. The charac-teristic appearance of the interior of an apple injured by codlingmoth larvas is shown in Fig. 17. Under certain conditions, a few of the larvas of the firstbrood hibernate during the winter, but in most parts of theUnited States only the larvas of the second brood of mothshibernate over winter. A rminber of cocoons are often foundon the under side of a piece of bark as it is pulled from anapple tree. The larvas of the second brood of codling mothusually enter the apples from the side or from the stem end. 30. Codling moths are combated by the use of arsenicalpoisons and by destroying the hibernating larvas. All loosebark on the trunk of apple trees in an infested orchard shouldbe removed from the trees and burned so as to destroy thelarvas that may be attached to the under side of the ft) X
Size: 1034px × 2418px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecad, booksubjectfruitculture, bookyear1912
