Large willow bark aphid

The large willow bark aphid a very large aphid and can form dense colonies form on the bark of willow trees. It is part of the biodiversity that healthy willow trees can support.   

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Large willow aphid (Tuberolachnus salignus) on Willow (Salix caprea)

Quick facts

Common name Large willow bark aphid
Latin name Tuberolachnus salignus
Plants affected Willows (Salix)
Main symptoms Large grey aphids in dense colonies on stems
Caused by Sap-sucking aphids
Timing Summer to late winter

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