Derris or Tuba Root

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Date
1940
Authors
Worsley R.R.
Rogers F.M
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Abstract
Derris root is one of the most powerful insecticides known, but is harmless to man and animals. It does not possess the rapid "knockout" power of pyrethrum, but weight for weight its eventual killing power is greater. It is finding increased commercial use in household sprays (mixed with pyrethrum), III fruit sprays, and in cattle dips; the powdered root is also much used for dusting purposes.
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East African Agricultural And Forestry Journal