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我国观赏花卉资源十分丰富,用途极广。部分花卉含有某些特殊的成分,可以用来防治害虫。用花卉农药杀虫,不会产生药害,无污染,对人畜安全。有兴趣者可以一试。 1.黄花杜鹃:属杜鹃花科杜鹃属植物。灌木,高1～2米,嫩枝及叶背密生毛,4～5月开花。花中含有多种毒素,对多种重要的农作物害虫和卫生害虫有较高的胃毒及触杀作用。将黄花杜鹃的花晒干磨成细粉,3份粉与7份
Our ornamental flower resources are very rich and extremely versatile. Some flowers contain some special ingredients that can be used to control pests. Insecticide with flowers and pesticides, will not produce phytotoxicity, pollution-free, safe for humans and livestock. Interested parties can give it a try. 1. Yellow Rhododendron: Rhododendron is a genus Rhododendron. Shrubs, high 1 to 2 meters, twigs and leaves back hairy hair, April to May flowering. Flowers contain a variety of toxins, a variety of important crop pests and health pests have a higher stomach poisoning and contact effects. The rhododendron flowers sun dried ground into fine powder, 3 parts powder and 7 parts