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DDT and Heptachlor as Black-fly Larvicides in Clear and Turbid Water1

Published online by Cambridge University Press:  31 May 2012

F. J. H. Fredeen
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Extract

Field tests of several formulations of DDT and heptachlor as black-fly larvicides were made in 1953 and 1954 in irrigation canals in Alberta. The objectives of these tests were 1: to investigate further the relationship between larvicide effectiveness and the suspended solids content of the water, and 2: to investigate the use of formulations containing either emulsifiers or finely-divided inorganic particles which might improve larvicide effectiveness in clear-water streams.

Type
Articles
Information
The Canadian Entomologist , Volume 94 , Issue 8 , August 1962 , pp. 875 - 880
Copyright
Copyright © Entomological Society of Canada 1962

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References

Arnason, A. P., Brown, A. W. A., Fredeen, F. J. H., Hopewell, W. W. and Rempel, J. G.. 1949. Experiments in the control of Simulium arcticum Malloch by means of DDT in the Saskatchewan River. Sci. Agr. 29: 527–537.Google Scholar
Fredeen, F. J. H., Arnason, A. P. and Berck, B.. 1953a. Adsorption of DDT on suspended solids in river water and its role in black-fly control. Nature (London) 171, p. 700.Google Scholar
Fredeen, F. J. H., Arnason, A. P., Berck, B. and Rempel, J. G.. 1953b. Further experiments with DDT in the control of Simulium arcticum Mall. in the North and South Saskatchewan Rivers. Can. J. Agr. Sci. 33: 379–393.Google Scholar
Fredeen, F. J. H. and Shemanchuk, J. A.. 1960. Black flies (Diptera: Simuliidae) of irrigation systems in Saskatchewan and Alberta. Can. J. Zool. 38: 723–735.CrossRefGoogle Scholar