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Unformatted text preview: by winged females. Here the females produce wingless daughters which are mated by the males and then lay hard-shelled eggs on the tree branches. In this form the aphids survive the winter. In Spring the eggs hatch to wingless females which produce winged daughters by parthenogenesis. The winged daughters fly to the plants on which they will feed and establish new colonies. D.G. Mackean...
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- Fall '11