Woolly Aphid

Found on various host plants including ash, alder, apple, maple, and beech trees in gardens and forests.

Plant sap (phloem) extracted from tree leaves, buds, bark, and roots.

They produce white, waxy strands for protection from predators and moisture loss. Some species exhibit a 'dancing' behavior by wagging their abdomens when disturbed.

Generally harmless to humans but can be a nuisance for gardeners by causing leaf curling, galls, and promoting the growth of sooty mold from their sticky honeydew secretions.