In addition to these three direct forms of injury, plum curculio adults can inadvertently infect fruit with spores of brown rot fungus. In the spring, plum curculio adults leave their overwintering quarters in trash on the ground, woodlots, or hedgerows, and migrate to fruit trees. This usually occurs just about the time of bloom. Migration into the orchard may last up to six weeks after bloom, with the greatest amount of movement occurring within the period up to 14 days after petal fall. Adult curculios do not like strong light and prefer the dense shade of the tree s inner canopy.
Eggs are pearly white.
Monitoring Adult Weevil Populations in Pecan and Fruit Trees in Oklahoma .