Monday, 18 November 2002 - 2:48 PM
0465

This presentation is part of : Student Competition Ten-Minute Papers, Subsection Cb. Apiculture and Social Insects, Cc. Insect Vectors in Relation to Plant Disease

Efficacy of thiamethoxan, imidacloprid, and lambda-cyhalothrin for managing bean leaf beetles and bean pod mottle virus

Jeffrey D. Bradshaw1, Marlin E. Rice1, and John H. Hill2. (1) Iowa State University, Department of Entomology, Ames, IA, (2) Iowa State University, Department of Plant Pathology, 403 Bessey Hall, Ames, IA

Bean pod mottle virus causes qualitative and quantitative damage to soybeans and is transmitted most efficiently by the bean leaf beetle, Ceratoma trifurcata Forster. During the summer of 2002, at three locations in Iowa, five potential strategies for managing bean leaf beetles and bean pod mottle virus were evaluated. The current management strategy in Iowa recommends one early and one mid-season lambda-cyhalothrin application. This study was conducted to determine the efficacy of applying seed treatments, either alone or in combination with lambda-cyhalothrin. The effectiveness of these strategies was measured by comparisons of beetle populations, virus incidence, plant height, seed weight, and yield between treatments.

Species 1: Coleoptera Chrysomelidae Cerotoma trifurcata (bean leaf beetle)
Keywords: bean leaf beetle, bean pod mottle virus

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