Urophora cardui (weed bioagent)

Urophora • Tephritidae • Diptera (against weeds) • insects • weed bioagents • Beneficials/natural enemies

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Urophora cardui on Cirsium arvense (click on image to enlarge it)
Author(s): Laura Parsons, University of Idaho, PSES
Source: IPM Images

Urophora cardui (weed bioagent) Linnaeus - (Canada thistle stem gall fly)

This seed-head fly attacks the Canada thistle and is commercially available.

For details see the respective page in Wikipedia.

• Other images of Urophora cardui (weed bioagent) (Wikimedia Commons and IPM Images - click to enlarge)
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  gall on Cirsium arvense caused by Urophora cardui

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  larva inside gall