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First detected in Britain in 1981, the lupin aphid has become widespread in Britain. This large grey aphid can be found on annual and perennial lupins often causing plants to wilt.
Lupin aphid is a sap-sucking insect in the same group of insects as greenfly and blackfly. It feeds on lupins (Lupinus). Native to North American it has become widespread in Britain since its arrival in the early 1980s.
Keep an eye out for the following on your lupins;
Pesticides for gardeners (Adobe Acrobat pdf document outlining pesticides available to gardeners)
Lupin aphid is present on its host plants all year round.
Small numbers of aphids overwinter on the basal buds and they begin to reproduce in spring. For most of spring and summer the aphids are in the form of wingless females that give birth to live young. Aphid numbers generally peak when the plants are coming into flower.
When the aphids colonies become overcrowded in mid-summer, winged forms develop that can fly and colonise other lupins.
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