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NATIVE PREDATORS AND THE CONTROL OF POTATO APHIDS

Published online by Cambridge University Press:  31 May 2012

Gilles Boiteau
Gilles Boiteau
Affiliation:
Agriculture Canada Research Station, PO Box 20280, Fredericton, New Brunswick, Canada E3B 4Z7
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Abstract

Experiments were done in fields of potato in Fredericton, New Brunswick, in 1981, 1982, and 1984 to determine the effect of native predators on the abundance of aphids. The populations of predators were altered by pitfall trapping within plots enclosed by polythene barriers and by applying a selective insecticide. The abundance of aphids was monitored in the enclosed plots and in unenclosed areas serving as control. The experimental design was successful at significantly reducing the numbers of Carabidae in the enclosures compared with the open plots. Aphid populations tended to be larger in the plots with depleted populations of Carabidae than in the control areas and were significantly larger in the plots where the insecticide depleted the populations of canopy level predators. These results suggest that the Carabidae play a relatively minor role in aphid control on the potato crop compared with specific predators.

Résumé

Une étude a été faite dans des champs de pomme de terre à Frédéricton au Nouveau-Brunswick en 1981, 1982 et 1984 pour déterminer l’effet des prédateurs indigènes sur l’abondance des pucerons. On a varié les populations de prédateurs en plaçant des pièges de Barber à l’intérieur de parcelles expérimentales entourées de barrières de polyéthylène et en appliquant un insecticide sélectif. L’abondance des pucerons était évaluée dans les parcelles entourées de barrières et dans les parcelles sans barrières qui servaient de contrôles. Le dispositif expérimental a permis de réduire significativement l’abondance des Carabidae dans les enceintes par rapport aux parcelles sans barrières. Les populations de pucerons tendaient à être plus élevées dans les parcelles dont les populations de Carabidae avaient été réduites que dans les zones de contrôle et étaient significativement plus élevées dans les parcelles où l’insecticide avait réduit l’abondance des prédateurs au niveau du feuillage des plants. Ces résultats suggèrent que le rôle des Carabidae polyphages dans le contrôle des pucerons sur pomme de terre est secondaire par rapport aux prédateurs spécifiques.

Type
Articles
Information
The Canadian Entomologist , Volume 118 , Issue 11 , November 1986 , pp. 1177 - 1183
Copyright
Copyright © Entomological Society of Canada 1986

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References

Anonymous. 1983. Atlantic Canada Potato Guide. New Brunswick Department of Agriculture, Fredericton, NB.Google Scholar
Boiteau, G. 1983 a. The arthropod community of potato fields in New Brunswick 1979–1981. Can. Ent. 115: 847–853.CrossRefGoogle Scholar
Boiteau, G. 1983 b. Activity and distribution of Carabidae, Arachnida, and Staphylinidae in New Brunswick potato fields. Can. Ent. 115: 1023–1030.CrossRefGoogle Scholar
Boiteau, G. 1983 c. The arthropod fauna of potato fields: composition and abundance. Research Branch, Agriculture Canada. Contribution 1983–16E. 57 pp.CrossRefGoogle Scholar
Bradley, R.H.E. 1952. Methods of recording aphid (Homoptera: Aphididae) populations on potatoes and the distribution of species on the plant. Can. Ent. 84: 93–102.CrossRefGoogle Scholar
Chambers, R.J., Sunderland, K.D., Wyatt, I.J., and Vickerman, G.P.. 1983. The effects of predator exclusion and caging on cereal aphids in winter wheat. J. appl. Ecol. 20: 209–224.CrossRefGoogle Scholar
De Clercq, R., and Pietraszko, R.. 1983. Epigeal arthropods in relation to predation of cereal aphids. pp. 88–92in Cavalloro, R. (Ed.), Aphid Antagonists, Proc. of EC Experts' Meeting, Portici, Nov. 1982. A.A. Balkema Publ.Google Scholar
Dutcher, J.D. 1983. Carbaryl and aphid resurgence in pecan orchards. J. Georgia ent. Soc. 18: 492–495.Google Scholar
Edwards, C.A., Sunderland, K.D., and George, K.S.. 1979. Studies on polyphagous predators of cereal aphids. J. appl. Ecol. 16: 811–823.CrossRefGoogle Scholar
Huston, F., and Boiteau, G.. 1981. Impact of several insecticides on populations of beneficial arthropods of potato fields. p. 84in Pesticide Research Report. Expert Committee on Pesticide Use in Agriculture, Agriculture Canada.Google Scholar
Kinzer, R.E., Cowan, C.B., Ridgway, R.L., Davis, J.W. Jr., Coppedge, J.R., and Jones, S.L.. 1977. Populations of arthropod predators and Heliothis spp. after applications of aldicarb and monocrotophos. Environ. Ent. 6: 13–16.CrossRefGoogle Scholar
Kirk, V.M. 1982. Carabids: minimal role in pest management of corn rootworms. Environ. Ent. 11: 5–8.CrossRefGoogle Scholar
Lecrone, S., and Smilowitz, Z.. 1980. Selective toxicity of pirimicarb, carbaryl and methamidophos to green peach aphid (Myzus persicae) (Sulzer), Coleomegilla maculata lengi (Timberlake) and Chrysopa oculata Say. Environ. Ent. 9: 752–755.CrossRefGoogle Scholar
MacGillivray, M.E., and Anderson, G.B.. 1958. Development of four species of aphids (Homoptera) on potato. Can. Ent. 90: 148–155.CrossRefGoogle Scholar
Mispagel, M.E., and Sleeper, E.L.. 1983. Density and biomass of surface-dwelling macroarthropods in the northern Mojave desert. Environ. Ent. 12: 1851–1857.CrossRefGoogle Scholar
Peterson, A.G. 1963. Increases of the green peach aphid following the use of some insecticides on potatoes. Am. Potato J. 40: 121–129.CrossRefGoogle Scholar
Riechert, S.E., and Lockley, T.. 1984. Spiders as biological control agents. Annu. Rev. Ent. 29: 299–320.CrossRefGoogle Scholar
Root, R.B., and Gowan, J.A.. The influence of insecticides with differing specificity on the structure of the fauna associated with potatoes. Am. Midland Nat. 99: 299–314.CrossRefGoogle Scholar
Smilowitz, Z. 1981. GPA-CAST: a computerized model for green peach aphid management on potatoes. pp. 193–203 in Lashomb, J.H., and Casagrande, R. (Eds.), Advances in Potato Pest Management. Hutchinson Ross Publishing Co. 288 pp.Google Scholar
Tamaki, G. 1981. Biological control of potato pests. pp. 178–192 in Lashomb, J.H., and Casagrande, R. (Eds.), Advances in Potato Pest Management. Hutchinson Ross Publ. Co. 288 pp.Google Scholar