Pyrethrum is the powdered, dried flower head of the pyrethrum daisy, Chrysanthemum cinerariaefolium (Asteraceae). Most of the world’s pyrethrum crop is grown in Kenya. The term “pyrethrum” is the name for the crude flower dust itself, and the term “pyrethrins” refers to the six related insecticidal compounds that occur naturally in the crude material, the […]
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