pyrethrins 中文意思是什麼
pyrethrins
解釋
除蟲菊精-
Natural pyrethrins is a botanical insecticide made from extracts of chrysanthemum flowers while pyrethroids such as s - bioallethrin, cypermethrin, permethrin and cyfluthrin are its synthetic chemical analogues
天然除蟲菊素是一種從菊花提煉的植物性殺蟲劑，而擬除蟲菊酯是類似天然除蟲菊 -
Method for the determination of pyrethrins residuesin cereals for export
出口糧谷中天然除蟲菊素殘留量檢驗方法 -
Pyrethrins and pyrethroids are usually applied as space spray i. e. by fogging to kill mosquitoes in contact
擬除蟲菊酯通常以噴霧方式作空間處理，直接殺死接觸到藥霧的蚊子。
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