除虫菊 是菊科宿根性草本植物。除虫菊花中含有除虫菊素,对昆虫有较强的触杀、胃毒作用。它能防治蚊、蝇、虱、蚤、臭虫等害虫,并能杀灭蚜虫、黑尾叶蝉、螟虫、椿虫、介壳虫、毛虫等农业害虫,还可驱除家畜体外的寄生虫。除虫菊现被广泛用于制造蚊香。马醉木 是杜鹃科的野生小灌木。其叶中有效成分马醉木素的毒性高,其纯品 Pyrethrum is a perennial herb of Asteraceae. Pyrethrum contains pyrethrins, insects have a strong touch, stomach poisoning effect. It can control mosquitoes, flies, lice, fleas, bed bugs and other pests, and can kill aphids, black-leafhoppers, stem borers, clogs, scale insects, caterpillars and other agricultural pests, but also get rid of livestock parasites in vitro. Pyrethrum is now widely used in the manufacture of mosquito coils. Horse drunk is a small branch of the Cuckoo family of small shrubs. The active ingredient in the leaf of the horse drunk lignin high toxicity, its pure product