1. UC IPM
White wax covering colonies of woolly apple aphid, <i>Eriosoma lanigerum</i>, feeding on pyracantha branches where the aphid feeding has caused bark to develop warty growths (galls).
White wax covering colonies of woolly apple aphid, Eriosoma lanigerum, feeding on pyracantha branches where the aphid feeding has caused bark to develop warty growths (galls).
Credit: Jack Kelly Clark