Woolly Aphid

Found on various host plants, including apple, elm, hawthorn, and alder trees, often in gardens, orchards, or forests.

Herbivorous; they pierce plant tissues to suck out sap (phloem), often causing leaf curling or galls.

They produce a white, waxy, cotton-like substance that covers their bodies for protection from predators and desiccation. They are often less active than other insects but can be seen floating through the air like bits of lint.

They are generally harmless to humans but can be plant pests, causing aesthetic damage or stressing young trees. They produce honeydew, which can lead to sooty mold growth on leaves.