Woolly apple aphid
develop further. Adult viviparous (wingless) females of the woolly aphid are 1.2-2.6 mm long, purplish brown and covered by masses of white, mealy wax. The [...] General The woolly aphid, Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other [...] infested apple rootstocks. It can occasionally also be found in pear, quince and a few other woody Rosaceae. Damage symptoms Galls are often produced on infested