Woolly Aphid

Scientific Name: Eriosomatinae

Order & Family: Hemiptera: Aphididae

Size: 1 to 7 mm

Woolly Aphid

Natural Habitat

Host plants including trees like apple, elm, hawthorn, and alder

Diet & Feeding

Plant sap from stems, leaves, and roots

Behavior Patterns

Secretes a white waxy substance for protection; often feeds in large colonies creating a cottony appearance

Risks & Benefits

Crop pest that can cause leaf curling and galls; produces honeydew which promotes sooty mold growth

Identified on: 1/10/2026