 Plum curculio, Conotrachelus nenuphar (Herbst):
Plum curculio tends to be a sporadic pest in West Virginia apple orchards. Most fruit
injury occurs in those orchards adjacent to hedgerows and woodlots. Problems also occur in
orchards of multiple varieties with different bloom periods. In this situation, injury
typically occurs on varieties that have completed bloom, while waiting for later blooming
varieties to reach petal fall in order to apply insecticides.Chemical control: Plum curculio can usually be controlled with a single insecticide application at petal fall. In higher pressure situations, a second application may be needed in 10 to 14 days. |