Peter Smallidge gave an online webinar presentation today
on “Hardwood Tree Ecology and Identification” via Cornell
University’s ForrestConnect. The gypsy moth caterpillar, one of the
most destructive pests of hardwood trees in the eastern United
States, is
its five pairs of raised blue spots and six pairs of raised
brick-red spots along their backs, and a sprinkling of setae, long
hairlike strands.