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EFFECT OF POOL BOTTOM SUBSTRATE ON RESIDUES AND BIOACTIVITY OF CHLORPYRIFOS, AGAINST LARVAE OF CULEX TARSALIS (DIPTERA: CULICIDAE)1

Published online by Cambridge University Press:  31 May 2012

G. P. Rawn ,
G. R. B. Webster  and
G. M. Findlay
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Abstract

The bioactivity and disappearance of chlorpyrifos in Dursban® 2.5 G and M formulations was studied in the laboratory and in the field in temporary pools lined with sod, clay, or sand substrate. The activity and presence of chlorpyrifos in the water was determined by bioassay with Culex tarsalis Coquillett larvae and chemical analysis by gas-liquid chromatography.

The tests indicated that, at equal rates of application in pools with organic matter or clay substrate, the 2.5 G formulation resulted in lower chlorpyrifos concentrations than the Dursban M, but provided periods of larval mortality equal to or greater than the M formulation except in laboratory sod-lined pools. At a given application, the shortest period of larval mortality and lowest detectable residues occurred in sod-lined pools, whereas in the sand-lined pools, the longest period of larval control and the highest residual concentration of chlorpyrifos in the water was encountered.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 12 , December 1978 , pp. 1269 - 1276
Copyright
Copyright © Entomological Society of Canada 1978

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References

Bailey, D. L., LaBrecque, G. C., and Whitefield, T. L.. 1970. Slow-release and emulsifiable formulation of Dursban and Abate for controlling larvae of Culex pipiens quinquefasciatus Say. Mosquito News 30: 465–467.Google Scholar
Bailey, G. W. and White, J. L.. 1970. Factors influencing the adsorption, desorption, and movement of pesticides in soil. Res. Rev. 32: 29–92.Google Scholar
Cooney, J. C. and Pickard, E.. 1974. Field tests with Abate and Dursban insecticides for control of floodwater mosquitoes in the Tennessee Valley region. Mosquito News 34: 12–22.Google Scholar
Dixon, R. D. and Brust, R. A.. 1971. Field testing of insecticides used in mosquito control, and a description of the bioassay technique used in temporary pools. J. econ. Ent. 64: 11–14.CrossRefGoogle Scholar
Green, R. E. 1974. Pesticide-clay water interactions, pp. 3–37in Pesticides in soil and water. Soil Sci. Soc. Am.Google Scholar
Greenland, D. J. 1970. Sorption of organic compounds by clays and soils. Soc. Chem. Ind. Monogr. 37: 79–91.Google Scholar
Hirakoso, S. 1968. Inactivating effects of microorganisms on insecticidal activity of Dursban. WHO/VBC/68.63.Google Scholar
Lewis, L. F., Darrow, D. I., and Eddy, G. W.. 1965. Results of tests with Dow Chemical Company's Dursban against mosquitoes. U.S.D.A. Entomology Research Div. 4 pp.Google Scholar
Ludwig, P. D., Dishburger, H. J., McNeil, J. C., Miller, W. O., and Rice, J. R.. 1968. Biological effects and persistence of Dursban insecticide in a salt-marsh habitat. J. econ. Ent. 61: 626–633.CrossRefGoogle Scholar
Miller, T. A., Nelson, L. L., Young, W. W., Roberts, L. W., Roberts, D. R., and Wilkinson, R. N.. 1973. Polymer formulations of mosquito larvicides. I. Effectiveness of polyethylene and polyvinyl chloride formulations of chlorpyrifos applied to artificial field pools. Mosquito News 33: 148–155.Google Scholar
Reimer, G. 1977. M.Sc. Thesis, Department of Soil Science, University of Manitoba, Winnipeg.Google Scholar
Rice, J. R. and Dishburger, H. J.. 1968. Determination of O, O-diethyl O-3,5,6-trichloro-2, pyridyl phosphorothioate in water and silt by gas chromatography. J. agric. Food Chem. 16: 867–869.CrossRefGoogle Scholar
Smith, G. N. 1968. Ultraviolet light decomposition studies with Dursban and 3,5,6-trichloro-2-pyridinol. J. econ. Ent. 61: 793–799.CrossRefGoogle Scholar
Smith, G. N., Watson, B. S., and Fischer, F. S.. 1966. The metabolism of 14C O, O-diethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate (Dursban) in fish. J. econ. Ent. 59: 1464–1475.CrossRefGoogle Scholar
Stevenson, F. J. 1976. Organic matter reactions involving pesticides in soil, pp. 180–207in Daufman, D. D., Still, G. G., Paulson, G. D., Bandal, S. K. (Eds.), Bound and conjugated pesticide residues. Am. Chem. Soc.Google Scholar
Tawfik, M. S. and Gooding, R. H.. 1970. Dursban and Abate clay granules for larval mosquito control in Alberta. Mosquito News 30: 461–464.Google Scholar
Weber, J. B. 1972. Interaction of organic pesticides with particulate matter in aquatic and soil systems, pp. 55–120in Advances in chemistry series, #111, Fate of organic pesticides in the aquatic environment. Am. Chem. Soc.Google Scholar
Womeldorf, D. J. and Whitesell, K. G.. 1972. Rice field mosquito control studies with low volume Dursban sprays in Colusa County, California. Mosquito News 32: 364–368.Google Scholar