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Integrated pest management of Sitona lineatus L. (Coleoptera: Curculionidae) in crops of Pisum sativum L. (Fabales: Fabaceae) in Western Canada Open Access


Other title
Integrated pest management
Field pea
Ground beetles
Biological control
Rhizobium leguminosarum
Sitona lineatus
Type of item
Degree grantor
University of Alberta
Author or creator
Vankosky, Meghan Ann
Supervisor and department
Cárcamo, Héctor A. (Agriculture and Agri-Food Canada)
Dosdall, Lloyd M. (Agricultural, Food and Nutritional Science)
Examining committee member and department
Heming, Bruce S. (Biology)
Meers, Scott (Alberta Agriculture and Rural Development)
Strelkov, Stephen (Agricultural, Food and Nutritional Science)
Department of Agricultural, Food, and Nutritional Science

Date accepted
Graduation date
Master of Science
Degree level
Sitona lineatus L. (Coleoptera: Curculionidae) is a pest of Pisum sativum L. (Fabales: Fabaceae) and managing it is a challenge because of its fecundity, migratory behavior and concealed larval habitat. Potential components of an integrated pest management program for S. lineatus were investigated near Lethbridge and Vauxhall, Alberta over three years. Cage studies indicated that larval feeding is more damaging than adult feeding but that larval populations are not dependent on adult weevil density. In open plot experiments, thiamethoxam-treated plants experienced significantly less foliar feeding damage than plants receiving no insecticide treatment but no consistent effects on yield were observed for any plot treatment over six site-years. Rhizobium inoculation had a synergistic interaction with thiamethoxam. Laboratory trials showed that Bembidion quadrimaculatum L. (Coleoptera: Carabidae) consumed S. lineatus eggs. Seed treatment with thiamethoxam and Rhizobium inoculant, and egg predation should be included in an integrated pest management program for S. lineatus.
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File title: Integrated Pest Management of Sitona lineatus L
File author: Meghan Ann Vankosky
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