Woolly apple aphid
which crawl or are blown by the wind from tree to tree. Sometimes a few winged aphids are produced in summer. Winged egg-laying females are produced in early [...] and appearance of Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless [...] and branches. Many generations occur during the summer months, also on new growth. Water shoots arising from the trunk or main branches, are very frequently