Plum curculio adults begin merging after petal fall, feeding on fruit and laying eggs under skin. Legless larvae then feed on the fruit pulp of apple and prunus fruit. Damage occurs from early April to early May and reoccurs from early June through mid-August. Oriental fruit moth attacks apple and prunus fruit. Codling moth attacks only apple.
Damage is caused by the white-pinkish, legged larvae.
It has an emergence pattern similar to the oriental fruit moth but stops laying eggs in early September. Grape berry moth attacks only grape berries. White to greenish, legged larvae attack early grapes in late May, and later generations attack from late June through mid-September. Occurs on limbs and fruit. Tree limbs and the tree itself may be killed by this scale.