Giant willow aphid

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Giant willow aphid

Jan 18, 2026

Pest Control Canada

Giant willow aphid

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6603. We have 100s of these in our backyard – Do you know what they are? Will they leave? Barrie, ON. Canada

Number 6603. This looks like a giant willow aphid, Tuberolachnus salignus (Hemiptera/Sternorrhyncha: Aphididae; subfamily Lachninae). Click here for details on their life history.