Curculio is a distinctive name given to a group of weevils of the Curculionidae, or snout beetle, family. Two main types of curculio can be present in a garden or orchard.
The plum curculio affects fruit trees in the early spring at the time when apples, peaches, plums and other fruits are blossoming. After feeding on the blossoms for several weeks, the plum curculio lays its eggs inside the newly formed fruit.
The nut curculio attacks nut trees and, like its plum counterpart, lays its eggs inside the growing nuts.
Damage: The curculio larvae cause deformation or prematurely falling fruits and nuts before pupating in the ground surrounding the tree.