oa Journal of the Entomological Society of Southern Africa - The rate of CO production by cockroaches dusted with DDT and other insecticidal dusts

Volume 9, Issue 2
  • ISSN : 0013-8789



While carrying out a series of dusting experiments on cockroaches, it was observed that those cockroaches dusted with 3% and 5% DDT in talc respired apparently more freely than those batches treated with dusts containing Gammexane (666) and Pyrethrum. The glass jars, for example, containing cockroaches dusted approximately twenty-four hours previously with 5% DDT, showed greater moisture condensation on their inner surfaces than those containing cockroaches dusted at the same time with a 3% DDT dust.

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