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