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Persistence of insecticide spray deposits on different surfaces against Prostephanus truncatus (Horn.) and Sitophilus zeamais (Motsch.)

Published online by Cambridge University Press:  19 September 2011

D. P. Giga  and
Jane Canhao
D. P. Giga
Affiliation:
University of Zimbabwe, Department of Crop Science, P. O. Box MP 167, Harare, Zimbabwe
Jane Canhao
Affiliation:
University of Zimbabwe, Department of Crop Science, P. O. Box MP 167, Harare, Zimbabwe
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Abstract

The biological activity of pirimiphos-methyl (20% e.c.) and a chlorpyriphos-methyl/deltamethrin (20/1% e.c.) formulation applied at different concentrations to glass, jute, plywood and mud surfaees against Prostephanus truncatus (Horn) and Sitophilus zeamais (Motsch.), was compared over a period of 18 weeks. The bioassays were conducted at 28°C and 70% r.h., 1, 4, 7, 14 and 18 weeks after treatment. Insect mortality was significantly influenced by the type of surface, the insecticide concentration, the age of the insecticide deposit and the interactions between these factors. P. truncatus was more susceptible to chlorpyriphos-methyl/deltamethrln deposits than S. zeamais. Amongst the different surfaces, glass retained the highest persistence, followed by jute, plywood and mud against P. truncatus. The insecticide deposits on jute were the most effective in controlling S. zeamais.

Résumé

L'activité biologique de pirimiphos-methyl (20% e.c.) et de chlorpyriphos-methyl/deltametrin (20/1% e.c.), appliqués différéntes concentrations sur des surfaces de verre, de jute, de triplex et de plaque boue désédiée contre Prostephanus truncatus (Horn) et Sitophilus zeamais (Motsch) fut comparée sur une période de 18 semaines, à 28°C, humidité relative 70%. Le type de surface, la concentration d'insecticide, l'âge du dépot d'insecticide ainsi que les interactions entre ces facteurs ont une influence significative sur la mortalité des insectes. P. truncatus fut plus susceptible au dépôts de chlorpyriphos-methyl/deltamethrin que S. zeamais. Parmi les différentes surfaces, le verre a démontré la plus grande persistance contre P. truncatus, suivi de la jute, du triplex et de 1 plaque de boue. Les dépots d'insecticides sur la jute furent les plus efficaces pour le contrôle de S. zeamais.

Keywords

P. truncatusS. zeamaispersistencesurface typemortalityP. truncatusS. zeamaispersistancetype de surfacemortalité
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 13 , Issue 6 , December 1992 , pp. 755 - 762
Copyright
Copyright © ICIPE 1992

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References

REFERENCES

Bengston, J., Cooper, L. M. and Grant-Taylor, F. J. (1975) A comparison of bioresmethrin, chlorpyrifos-methyl and pirimiphos-methyl as grain protectants against malathion-resistant insects in wheat Qld. J. agric. Anim. Sci. 32, 51–78.Google Scholar
Burkholder, W. E. and Dicke, J. R. (1966) The toxicity of malathion and fenthion to dermestid larvae as influenced by various surfaces. J. econ. Entomol. 59, 253–254.CrossRefGoogle Scholar
Evans, N. J. (1985) The effectiveness of various insecticides on some resistant beetle pests of stored products from Uganda. J. Stored Prod. Res. 21, 105–109.CrossRefGoogle Scholar
Golob, P. (1988) Current status of larger grain borer Prostephanus truncatus (Horn) in Africa. Insect Sci. Applic. 9, 737–745.Google Scholar
Golob, P., Changjaroen, P., Ahmed, A. and Cox, J. (1985) Susceptibility of Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) to insecticides. J. Stored Prod. Res. 21, 141–150.CrossRefGoogle Scholar
Golob, P., Dunsan, U. R., Evans, N., Meik, J., Rees, D. and Magazini, I. (1983) Preliminary field trials to control Prostephanus truncatus (Horn) in Tanzania. Trop. Stored Prod. Inf. 45, 15–17.Google Scholar
Golob, P. and Hodges, R. (1982) Study of an outbreak of Prostephanus truncatus (Hom) in Tanzania Report G164. Trop. Prod. Inst, London.Google Scholar
Harnish, R. and Krall, S. (1984) Further distribution of the larger grain borer in Africa. FAO Plant Prot. Bull. 32, 113–114.Google Scholar
Hodges, R. (1984) Field ecology and monitoring of Prostephanus truncatus. Proc. GASGA Workshop on the Larger Grain Borer Prostephanus truncatus. 24–25 February 1983. TPI, Slough. Publ. GTZ, Eschborn, pp. 132–148.Google Scholar
Hodges, R. (1986) The biology and control of Prostephanus truncatus (Hom) (Coleoptera: Bostrichidae) — A destructive storage pest with an increasing range. J. Stored Prod. Res. 22, 1–14.CrossRefGoogle Scholar
Kega, V. K. and Warui, C. W. (1983) Prostephanus truncatus in Coast Province, Kenya. Trop. Stored Prod. Inf. 46, 2.Google Scholar
Lemon, R. W. (1967) Laboratory evaluation of malathion, bromophos and fetlitrothion for use against beetles infesting stored products. J. Stored Prod. Res. 2, 197–200.CrossRefGoogle Scholar
Mensah, G. W. K., Watters, F. L. and Webster, G. R. B. (1979) Translocation of malathion, bromophos, iodofenphos into stored grain from treated structural surfaces. J. Econ. Entomol. 72, 385–391.CrossRefGoogle Scholar
Okwelogu, T. N. (1968) The toxicity of malathion applied to washed concrete. J. Stored Prod. Res. 2, 197–200.Google Scholar
Parkin, E. A. (1966) The relative toxicity and persistence of insecticides applied as wettable powder against stored product beetles. Ann. appl. Biol. 57, 1–14.CrossRefGoogle Scholar
Tauthong, S. and Watters, F. L. (1978) Persistence of three organophosphorus insecticides on plywood surfaces against five species of stored-product insects. J. econ. Entomol. 71, 115–121.CrossRefGoogle Scholar
Watters, F. L. (1970) Toxicity to the confused flour beetle of malathion and bromophos on concrete floors. J. econ. Entomol. 63, 1000–1001.CrossRefGoogle Scholar
Watters, F. L. (1976) Persistence and uptake in wheat of malathion and bromophos applied on granary surfaces to control the red flour beetle. J. econ. Entomol. 69, 353–356.CrossRefGoogle Scholar
Webley, D. J. and Kiliminster, K. M. (1980) The persistence of insecticide spray deposits on woven polypropylene and jute sacking. Pestic. Sci. 11, 667–673.CrossRefGoogle Scholar
White, N. D. G. (1982) Effectiveness of malathion and pirmiphos-methyl applied to plywood and concrete to control Prostephanus truncatus (Coleoptera: Bostrichidae). Proc. Entomol. Soc. Ontario. 113, 65–69.Google Scholar
Williams, P., Semple, R. L. and Amos, T. G. (1982) Relative toxicity and persistence of one carbamate and three organophosphate insecticides on concrete, wood and iron surfaces for control of grain insects. Gen. appl. Entomol. 14, 35–40.Google Scholar
Williams, P., Semple, R. L. and Amos, T. G. (1983) Relative toxicity of three pyrethroid insecticides on concrete, wood and iron surfaces for control of grain insects. Gen. appl. Entomol. 15, 7–10.Google Scholar