除虫菊素 meaning in Chinese

pyrethrins

Method for the determination of pyrethrins residuesin cereals for export
出口粮谷中天然除虫菊素残留量检验方法
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
天然除虫菊素是一种从菊花提炼的植物性杀虫剂，而拟除虫菊酯是类似天然除虫菊