gall flies (Urophora spp. ) on diffuse knapweed (Centaurea diffusa ) - 5358612

gall flies
Urophora sp. Robineau-Desvoidy, 1830

Host: diffuse knapweed (Centaurea diffusa Lam.)
Descriptor: Damage
Description: Seedhead of diffuse knapweed (Centaurea diffusa), with a gall caused by the larva of the gall fly (Urophora sp.), a biological control agent.
Image type: Laboratory
Image location: United States

Photographer Information

Name: L.L. Berry
Country: United States

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Image Number: 5358612

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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