Canada thistle stem gall fly (Urophora cardui ) on Canada thistle (Cirsium arvense ) - 5358617

Canada thistle stem gall fly
Urophora cardui (Linnaeus)

Host: Canada thistle (Cirsium arvense (L.) Scop.)
Descriptor: Adult(s)
Description: Adult Canada thistle stem gall fly (Urophora cardui), a biological control agent, and a gall caused by the larvae.
Image type: Laboratory
Image location: United States

Photographer Information

Name: L.L. Berry
Country: United States

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Image Number: 5358617

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Image Citation:(?) L.L. Berry, Bugwood.org

Node Affiliation: Colorado State University

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Image uploaded on Friday, January 18, 2008
Image Information last updated on Tuesday, April 15, 2008