Speckled green fruitworm moth (larva)

Larvae attack decidious trees and shrubs including: apple, crabapple, cherries, plums, poplar, maple, willow and white birch. They overwinter in the pupa stage. The adults are among the first moths to emerge in March or April. Larva are full grown by early June where they dig into the soil and pupate. One generation a year. (information from BugGuide)