Biological Control Agents

International Symposia on Biological
Control of Weeds


Comparison of native and introduced agent populations



ArticleLead AuthorYear
Density and survival of introduced populations of Urophora stylata (Diptera: Tephritidae) in Cirsium vulgare (Compositae) in Canada, compared with native populationsRedfern1988
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USDA Forest Service Bugwood University of Georgia