Biological Control Agents

Urophora affinis



ArticleLead AuthorYear
Effect of duration of low temperature exposure on post-diapause development of overwintering Urophora affinis and U. quadrifasciata (ABSTRACT ONLY)McCaffrey1984
Status of biological weed control in MontanaStory1984
The functional forms of density-dependent birth and death rates in diffuse knapweed (Centaurea diffusa) explain why it has not been controlled by Urophora affinis, U. Quadrifasciata and Sphenoptera jugoslavicaPowell1988
Modification of flowerheads of diffuse knapweed by the gall-inducers Urophora affinis and Urophora quadrifasciata (Diptera: Tephritidae)Shorthouse1988
Why Reduced Seed Production is Not Necessarily Translated Into Successful Biological Weed ControlMyers1999
Successful establishment of exotic agents for classical biological control of invasive weeds in VirginiaKok1999
Supercooling Capacity of Urophora affinis and U. quadrifasciata (Diptera: Tephritidae): Effect on Site, Time of Season, Differences among Plants, and Gall Density  (ABSTRACT ONLY)Nowierski1999
Impact of biological control agents on Centaurea diffusa (diffuse knapweed) in central MontanaSmith2003