Woolly Aphid

Found on various host plants including ash, elm, apple, and beech trees in gardens, forests, and orchards.

They feed on plant sap by piercing stems, leaves, or roots with needle-like mouthparts.

They produce a waxy, white, cotton-like substance for protection against predators and moisture loss. Some species alternate between different host plants during their life cycle.

Generally harmless to humans. They can cause aesthetic damage to plants, leaf curling, or galls, and produce sticky honeydew that promotes sooty mold growth; however, they serve as a food source for beneficial insects like lacewings and ladybugs.