Abstract
DEHYDROCHLORINATION of DDT by certain chemicals concerns not only agriculture1 but is also of great importance in anti-mosquito campaigns. A major factor here is the time during which DDT, sprayed on walls of houses, retains its insecticidal power. It has been shown2 that great differences may exist between apparently identical walls, and that iron and aluminium ions are responsible for rapid dehydrochlorination. The difference in the percentage of mosquitoes killed on wooden and pisé walls, as reported by Wilkinson3, might perhaps be explained on these lines.
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References
Carne, P. B., Nature, 162, 743 (1948).
Downs, W. G., et al., private communication from the Rockefeller Foundation.
Wilkinson, P. R., Nature, 169, 421 (1952).
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MAES, H. Phosphorus as a Factor Preventing DDT-Dehydrochlorination. Nature 170, 328 (1952). https://doi.org/10.1038/170328a0
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DOI: https://doi.org/10.1038/170328a0
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