These pest create a 'tent' within the forks of branches. They are usually active throughout spring and one large colony can completely defoliate a small tree. They will feast on a variety of trees including wild cherry, ornamental apple, crabapple, plum, peach, ash, birch, willow, maple, oak and poplar, as well as other shade and forest trees. Although the damage looks significant, the tree usually is able to recover during the next growing season. Unlike the fall webworm, the eastern tent caterpillar does not use leaves in it's nesting (tent). The Eastern Tent caterpillar is active in late spring through early summer and year to year their populations will vary.

Trees and shrubs Attacked: Apple, Cabapple, Fruit trees.
Damage to look for : Silken tents in trees Defoliation of leaves Egg Mass