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Storage stability of DDT/Lindane emulsifiable concentrates and reworking deteriorated stocks

Published online by Cambridge University Press:  27 March 2009

Z. M. El Attal
Affiliation:
Plant Protection Research Institute, Oiza, Egypt
Omayma K. Moustafa
Affiliation:
Plant Protection Research Institute, Oiza, Egypt
A. A. A. Said
Affiliation:
Plant Protection Research Institute, Oiza, Egypt

Summary

Investigations of the reasons for the instability of emulsifiable concentrates (ECs) during storage and a study of reprocessing insecticide ECMs whose emulsification propertieshad deteriorated during storage is reported. Bioassay showed that very stable emulsions, although physically perfect, leave inadequate residues on the treated leaves. When a deteriorated EC was reprocessed, its emulsification properties were restored, resulting in better adherence of the insecticides on the leaves' surfaces; the residual toxicity was increased.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1978

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References

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