While oak, maple, and apple are preferred hosts, many other deciduous plants are susceptible to damage from winter moth caterpillars.
These include but are not limited to: cherry, basswood, ash, white elm, crabapple, and blueberry. Winter moth caterpillars may also drop or ‘balloon’ onto nearby plants
like roses, herbaceous perennials, annuals, etc. that may be found near or beneath infested trees. Winter moth caterpillars are not usually found feeding on evergreens
or broad-leaved evergreens, although they have been found on certain spruces such as Sitka spruce (Europe), and heathers (Scotland). Partial defoliation can be the
norm for this species. Damage to blueberry and apple crops is especially severe as the reproductive parts responsible for fruit can be destroyed before
buds open fully. More Info...