Woolly apple aphid
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 [...] are produced in summer. Winged egg-laying females are produced in early autumn but their eggs do not develop. Contrary to the situation in America, South [...] parts of the world mainly via infested apple rootstocks. It can occasionally also be found in pear, quince and a few other woody Rosaceae. Damage symptoms