Woolly Aphid

Scientific Name: Eriosomatinae

Order & Family: Hemiptera: Aphididae

Size: 2mm to 6mm

Woolly Aphid

Natural Habitat

Commonly found in deciduous forests, orchards, and urban gardens, often on host plants such as apple or ash trees.

Diet & Feeding

Herbivorous, feeding on plant sap (phloem) from leaves, twigs, and roots.

Behavior Patterns

They produce a white, waxy, cotton-like covering to protect themselves from predators and moisture loss. They often form large colonies and go through complex life cycles including both sexual and asexual reproduction.

Risks & Benefits

Generally harmless to humans but can be a garden pest by causing leaf curling and honeydew production, which may lead to sooty mold growth.

Identified on: 1/13/2026