Woolly Plant Louse May 2026

( Eriosoma lanigerum ): Often attacks apple tree roots and branches.

: They are tiny (1–6 mm) and often form conspicuous colonies that look like fuzzy white masses on twigs, leaves, or roots. woolly plant louse

: They are herbivores that use piercing mouthparts to feed on plant juices, which can cause galls, leaf curling, and general plant stress. Common Varieties : ( Eriosoma lanigerum ): Often attacks apple tree

The is more commonly known as the woolly aphid (subfamily Eriosomatinae). These sap-sucking insects are easily identified by the white, cottony or "woolly" wax filaments they secrete to cover their bodies. Key Characteristics which can cause galls

( Prociphilus tessellatus ): Known for its large, fluffy colonies on alder trees.