Woolly Aphid

Natural Habitat

Commonly found on the leaves, stems, and bark of host plants such as apples, ash, elm, and hawthorn trees.

Diet & Feeding

Herbivorous; they use piercing-sucking mouthparts to feed on plant sap (phloem), often targetting tender new growth.

Behavior Patterns

They produce a characteristic white, waxy, cotton-like substance that covers their bodies for protection. They often congregate in large colonies and are commonly spotted during late summer and autumn as winged adults look for new host trees.

Risks & Benefits

Generally harmless to humans but can be a garden pest. Heavy infestations can cause leaf curling, yellowing, and stunted growth in plants. They produce honeydew, which can lead to sooty mold growth, but they also serve as a food source for lacewings and ladybugs.

Identified on: 3/3/2026