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Impact Of Ceutorhynchus Litura Feeding On Root Carbohydrate Levels In Canada Thistle (Cirsium Arvense), Gary L. Hein, Robert G. Wilson
Impact Of Ceutorhynchus Litura Feeding On Root Carbohydrate Levels In Canada Thistle (Cirsium Arvense), Gary L. Hein, Robert G. Wilson
Department of Entomology: Faculty Publications
Canada thistle is a serious perennial weed found throughout the northern regions of the United States and Canada. The weevil, Ceutorhynchus litura (F.), was first released in Canada in 1965 as a potential biological control agent for Canada thistle; however, its impact as a control agent has been sporadic. The objective of this study was to characterize C. litura impacts on the carbohydrate profile in Canada thistle roots through the growing season and to evaluate the potential for this biological control agent in causing stress to Canada thistle. Field plots, infested with C. litura, were established and extensively sampled …