oa Journal of the Entomological Society of Southern Africa - Pyrethrum-treated bags for the protection of grain and meal
The tests descriptionbed in this paper have been carried out during the past two years, as part of all International experiment to evaluate the protection afforded by synergised pyrethrum to the contents of treated bags. It will be seen from the tests that the treated bags protected the whole grains much better than they did the maize meal and wheat meal. They protected the wheat and maize almost completely for two years after which time these products were still in perfect condition.
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