红花除虫菊灭虫法飞行或爬行的害虫一触及干红花除虫菊或碾碎的除虫菊即会死亡,但哺乳类或鸟类却不会受到伤害。这种菊科植物同时也是一种优美的观赏花卉,适用于各种花坛。尽管除虫菊除虫效果很好,但干的除虫菊药效只能持续几天。延长其使用期的方法是将新鲜花头放在拉链包里置于冰箱里,根据需要制成干花或碎花。 Red Pyrethrum Pest Control Flying or crawling pests that kill dry crocus or crushed pyrethrum but do not cause damage to mammals or birds. This compositae is also a beautiful ornamental flower, suitable for a variety of flower beds. Although pyrethrum insects are effective, dry pyrethrum efficacy lasts for only a few days. To extend the life of the method is to put the fresh flower head in the zipper bag in the refrigerator, made of dried flowers or floral flowers, if necessary.