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Toxicity and Interaction of Stereo-isomers of Benzene Hexachloride in Cockroaches

Published online by Cambridge University Press:  10 July 2009

K. van Aspbren
K. van Aspbren
Affiliation:
Laboratory for Research on Biocides,National Council for Agricultural Research, Utrecht.
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Extract

Some types of joint action of insecticides described by previous authors are discussed, and experiments described on the joint action on Periplaneta americana (L.) of the γ and δ isomers, and of the γ and α isomers, of benzene hexachloride. The values of the mortalities obtained are given in tables and compared with calculations of those that would be expected according to several models of joint action in which no interaction occurs. From statistical evidence it is concluded that only one of these models, namely, independent action with a strong positive correlation of the susceptibilities to the two poisons, can give an appropriate explanation of the results. These results, however, can also be explained by suggesting that antagonistic effects play a part in the joint action of the BHC isomers investigated.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 46 , Issue 4 , January 1956 , pp. 837 - 843
Copyright
Copyright © Cambridge University Press 1956

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