Pyrethrin - Wikipedia, the free encyclopedia The pyrethrins are a pair of natural organic compounds normally derived from Chrysanthemum cinerariifolium that have potent insecticidal activity. Pyrethrins are ...
Pyrethrins - PMEP Home - Cornell University The natural pyrethrins are contact poisons which quickly penetrate the nerve system of the insect. A few minutes after application, the insect cannot move or fly ...
除蟲菊素 - 相關部落格
pyrethrins - 除蟲菊素 - 學術名詞暨辭書資訊網 - 國家教育研究院 出處/學術領域, 英文詞彙, 中文詞彙. 學術名詞 醫學名詞, pyrethrins, 除蟲菊素. 以除 蟲菊素 進行詞彙精確 ...
