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Environ Health Perspect. 1980 Feb; 34: 189–202.
PMCID: PMC1568513
Research Article

Pyrethrum flowers and pyrethroid insecticides.


The natural pyrethrins from the daisy-like flower, Tanacetum or Chrysanthemum cinerariifolium, are nonpersistent insecticides of low toxicity to mammals. Synthetic analogs or pyrethroids, evolved from the natural compounds by successive isosteric modifications, are more potent and stable and are the newest important class of crop protection chemicals. They retain many of the favorable properties of the pyrethrins.

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