Woolly Aphid

Found on various host trees and shrubs, notably apple, ash, beech, and alder across North America and Europe.

Herbivorous; they use piercing-sucking mouthparts to feed on plant sap from leaves, stems, or roots.

They secrete white, waxy strands that resemble wool or cotton for protection from predators and desiccation. They are known for a 'dancing' motion when disturbed.

They are considered agricultural and garden pests because they can cause leaf curling, galls, and overall plant stress. They do not pose a direct physical risk to humans.