Seasonal development
and life cycle—Peach twig borer
In the fall, winter, and very early spring, peach twig borers overwinter in limb crotches in cells
called hibernacula covered with chimneylike piles of frass and sawdust. Larvae emerge in early spring
and migrate up twigs and branches, where they attack newly emerged leaves and shoots. Pupation takes
place in protected places on trees and occasionally in the stem cavity of infested fruit. Adults
lay tiny eggs individually on twigs and fruit in the spring and summer and on young branches in the
fall. Eggs are also laid on the undersides of leaves next to veins or the midrib.
|
Egg |
Larva |
Adult |
Hibernacula |
|
