Woolly apple aphid
direct harm to mature trees but the sticky masses of “wool” may contaminate leaves and fruits and can be a nuisance at harvest time. Life cycle and appearance [...] aphid, Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other parts of the world [...] contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless, parthenogenetic and viviparous