Woolly Plant Louse -

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

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

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 ( Eriosoma lanigerum ): Often attacks apple tree

: 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

: Look for a sticky residue called "honeydew" or the presence of black sooty mold that grows on it. definition of woolly plant louse by Mnemonic Dictionary