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GRANULAR INSECTICIDES AGAINST OVERWINTERED TUBER FLEA BEETLE, EPITRIX TUBERIS GENTNER (COLEOPTERA: CHRYSOMELIDAE), ON POTATO

Published online by Cambridge University Press:  31 May 2012

R.S. Vernon  and
J.R. Mackenzie
R.S. Vernon
Affiliation:
Agriculture Canada Research Station, 6660 NW Marine Drive, Vancouver, British Columbia, Canada V6T 1X2
J.R. Mackenzie
Affiliation:
Agriculture Canada Research Station, 6660 NW Marine Drive, Vancouver, British Columbia, Canada V6T 1X2
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Abstract

Six systemic and two nonsystemic granular insecticides were evaluated by application in the furrow at planting for control of overwintered tuber flea beetles, Epitrix tuberis Gentner. Studies were conducted from 1986 to 1988 in three soil types in the lower Fraser Valley of British Columbia. Of the registered systemic insecticides tested, phorate and aldicarb gave rapid and consistent control of overwintered adults released on the foliage 24–30 days after planting, whereas disulfoton and carbofuran were either less effective or more variable in their control. Terbufos and cloethocarb, not registered for use on potatoes, gave control of adult beetles similar to that of phorate and aldicarb. Mortality of overwintered generation adults resulting from these systemic insecticides was correlated with numbers of beetles emerging in the summer adult generation. Neither fonofos nor chlorpyrifos, the nonsystemic granular insecticides, gave effective control of overwintered flea beetles. Only fonofos significantly reduced the emergence of beetles of the summer generation, but the control was inconsistent between years. When beetles were released on the foliage 56 and 65 days after planting, the fewest beetles emerged from the phorate and terbufos plots. All treatments were less effective in highly organic soils than in mineral soils. The advantages of using granular systemic insecticides for controlling overwintered E. tuberis, and strategies for improving control in association with integrated pest management programs are discussed.

Résumé

Six insecticides granuleux systémiques et deux non-systémiquesr mis dans les sillons au semis, ont été évalués dans la lutte contre l’altise des tubercules hivernante, Epitrix tuberis Gentner. Les études ont eu lieu de 1986 à 1988, dans trois sortes de sol, dans la base vallée de la rivière Fraser, en Colombie britannique. Parmi les insecticides systémiques, le phorate et l’aldocarb ont effectué une lutte rapide et consistante des altises adultes relâchées sur les feuillages à 24 de 30 jours après le semis. En contraste, le disulfoton et le carbofuran ont été soit moins efficaces, soit plus variables, pour la lutte. Le terbufos et le cloéthocarb, non-enregistrés pour utilisation sur les pommes de terre, ont été d’action semblable au phorate et à l’aldocarb. La mortalité de la génération hivernante d’altises adultes, occasionnée par ces insecticides systémiques, a correspondu à celle de l’éclosion de la génération estivale. Ni le fonofos ni le chlorpyrifos, insecticides granuleux non-systémiques, n’a été efficace dans la lutte contre les altises hivernantes, selon observations faites sur l’éclosion d’adultes. Seul, le fonofos a réduit significativement l’éclosion des altises adultes de la génération estivale, mais l’efficacité de la lutte a varié d’une année à l’autre. Des altises adultes, relâchées sur les feuillages de 56 à 65 jours après le semis, le nombre le moindre a été récupéré des épreuves avec le phorate et le terbufos. Tous les traitements ont été moins efficaces quand il s’agissait des sols ayant un haut contenu organique. Les avantages d’employer les insecticides granuleux systémiques dans la lutte contre E. tuberis hivernant, et les stratégies pour l’amélioration de la lutte, reliées aux programmes de luttes intégrées contre les insectes, ont été discutés.

Type
Articles
Information
The Canadian Entomologist , Volume 123 , Issue 2 , April 1991 , pp. 333 - 343
Copyright
Copyright © Entomological Society of Canada 1991

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References

Anonymous. 1989. Vegetable Production Guide for Commercial Growers. Province of British Columbia, Ministry of Agriculture and Fisheries, Victoria, B.C.Google Scholar
Cusson, M. 1985. Edge effects in infestation patterns of insects on crops: A review and a field study with special reference to tuber flea beetle (Epitrix tuberis Gent.). Master of Pest Management Professional Paper, Department of Biological Sciences, Simon Fraser University, Burnaby, B.C.Google Scholar
Cusson, M., Vernon, R.S., and Roitberg, B.. 1990. A sequential sampling plan for the tuber flea beetle, Epitrix tuberis, using Taylor's power law: Dealing with edge effects. Can. Ent. 122: 537–546.CrossRefGoogle Scholar
Duncan, D.B. 1955. Multiple range and multiple F tests. Biometrics 11: 1–42.CrossRefGoogle Scholar
Finlayson, D.G. 1950. The effects of certain insecticides on the biotic potential of Epitrix tuberis Gentner (Coleoptera: Chrysomelidae). M.Sc. thesis, The University of British Columbia, Vancouver, B.C. 105 pp.Google Scholar
Finlayson, D.G., Wilkinson, A.T.S., and Mackenzie, J.R.. 1979. Efficacy of insecticides against tuber flea beetles, wireworms and aphids in potatoes. J. ent. Soc. Brit. Columb. 76: 6–9.Google Scholar
Giles, K.I. 1987. Estimation of an economic threshold for the tuber flea beetle, Epitrix tuberis Gentner (Coleoptera: Chrysomelidae), on potato in British Columbia. Master of Pest Management Professional Paper, Department of Biological Sciences, Simon Fraser University, Burnaby, B.C.Google Scholar
Hill, R.E. 1946. Influence of food plants on fecundity, larval development, and abundance of the tuber flea beetle in Nebraska. Nebr. Agric. Exp. Sta. Res. Bull. 143. 16 pp.Google Scholar
Hofmaster, R.N., Waterfield, R.L., and Boyd, J.C.. 1967. Insecticides applied to the soil for control of eight species of insects on Irish potatoes in Virginia. J. econ. Ent. 60: 1311–1318.CrossRefGoogle Scholar
Vernon, R.S., Mackenzie, J.R., and Bartel, D.L.. 1990. Monitoring tuber flea beetle, Epitrix tuberis Gentner (Coleoptera: Chrysomelidae), on potato: Parameters affecting the accuracy of visual sampling. Can. Ent. 122: 525–535.CrossRefGoogle Scholar
Vernon, R.S., and Mackenzie, J.R.. 1991. Evaluation of foliar sprays against the tuber flea beetle, Epitrix tuberis Gentner (Coleoptera: Chrysomelidae), on potato. Can. Ent. 123: 321–331.CrossRefGoogle Scholar