Alsophila pometaria (fall) and Paleacrita vernata (spring)
- Larvae chew between the major veins at first, eventually chewing everything except midveins
- Defoliation typically light to moderate, although it can be severe
- Smooth-bodied, light green to brown, 2 inches long when fully grown; moves in characteristic looping motion
- Damage occurs late April/early May until June
- More information on Cankerworms...