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Cabbage seedpod weevil (Coleoptera: Curculionidae): new pest of canola in northeastern North America

Published online by Cambridge University Press:  31 May 2012

Jacques Brodeur ,
Luc-André Leclerc ,
Marc Fournier  and
Michèle Roy
Jacques Brodeur*
Affiliation:
Centre de Recherche en Horticulture, Département de phytologie, Université Laval, Sainte-Foy, Quebec, Canada G1K 7P4
Luc-André Leclerc
Affiliation:
Centre de Recherche en Horticulture, Département de phytologie, Université Laval, Sainte-Foy, Quebec, Canada G1K 7P4
Marc Fournier
Affiliation:
Centre de Recherche en Horticulture, Département de phytologie, Université Laval, Sainte-Foy, Quebec, Canada G1K 7P4
Michèle Roy
Affiliation:
Direction des services technologiques, Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec, 2700 rue Einstein, Sainte-Foy, Quebec, Canada G1P 3W8
*
1 Author to whom all correspondence should be addressed (E-mail: jacques.brodeur@plg.ulaval.ca).
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Extract

The cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) [= C. assimilis (Paykull)] (Colonnelli 1993), is a univoltine species native to Europe that feeds on canola and other oilseed cruciferous plants. The adult overwinters in debris and soil outside fields and colonizes canola at the blooming stage (Dosdall et al. 2001). Eggs are laid singly into the immature pods and each larva consumes five to seven seeds before cutting a hole in the pod to wriggle out and pupate in the soil (Dmoch 1965). Yield losses are difficult to assess because the plant compensates for bud and pod injuries caused by insects or pathogens (Lamb 1989). Nevertheless, pod feeding by larvae causes much damage, as canola yields can be reduced from 15 to 35% (Homan and McCaffrey 1993). Feeding by adults can also be significant, as it can reduce oil content, seed weight, and seed germination (Buntin et al. 1995).

Type
Articles
Information
The Canadian Entomologist , Volume 133 , Issue 5 , October 2001 , pp. 709 - 711
Copyright
Copyright © Entomological Society of Canada 2001

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References

Baker, W.W. 1936. Notes on a European weevil, Ceutorhynchus assimilis Payk., recently found in the state of Washington. The Canadian Entomologist 68: 191–3Google Scholar
Buntin, G.D. 1998. Trap cropping to control the cabbage seedpod weevil (Ceutorhynchus assimilis Paykull) in oilseed rape. Crop Protection 17: 299–305CrossRefGoogle Scholar
Buntin, G.D., Raymer, P.L. 1994. Pest status of aphids and other insects in winter canola in Georgia. Journal of Economic Entomology 87: 1097–104CrossRefGoogle Scholar
Buntin, G.D., McCaffrey, J.P., Raymer, P.L., Romero, J. 1995. Quality and germination of rapeseed and canola seed damaged by adult cabbage seedpod weevil, Ceutorhynchus assimilis (Paykull) [Coleoptera: Curculionidae]. Canadian Journal of Plant Science 75: 539–41Google Scholar
Carlson, E.C., Lange, W.H., Sciaroni, R.H. 1951. Distribution and control of the cabbage seedpod weevil in California. Journal of Economic Entomology 44: 958–66CrossRefGoogle Scholar
Colonnelli, E. 1993. The Ceutorhynchinae types of I.C. Fabricius and G. von Paykull. Koleopterologische Rundschau 63: 299–310Google Scholar
Dmoch, J. 1965. The dynamics of a population of the cabbage seedpod weevil (Ceutorhynchus assimilis Payk.) and the development of winter rape. Part 1. Ekologia Polska Seria A 8: 249–87Google Scholar
Dosdall, L.M., Cáarcamo, H., Johnson, D. 2001. Temporal and spatial distribution patterns of the cabbage seedpod weevil in canola. In Proceedings of the 48th Annual Meeting of the Entomological Society of Alberta, Edmonton, 12–14 October 2000. Edited by Mueller, Erica. Entomological Society of Alberta, Edmonton. In pressGoogle Scholar
Homan, H.W., McCaffrey, J.P. 1993. Insect pests of spring-planted canola. Idaho Agricultural Experimental Station Publication CIS 982Google Scholar
Lamb, R.J. 1989. Entomology of oilseed Brassica crops. Annual Review of Entomology 34: 211–29Google Scholar
McLeod, J.H. 1962. Biological control of pests of crops, fruit trees, ornamentals and weeds in Canada up to 1959. Part I. pp 1–33in A review of the biological control attempts against insects and weeds in Canada. Technical Communication of the Commonwealth Institute of Biological Control 2Google Scholar