At present, natural pyrethrins have been widely used in agriculture, forestry, biological pesticides, food hygiene and safety and other fields.
目前，天然除虫菊素已广泛应用在农业、林业、生物农药和食品卫生安全等多个领域。
Objective To observe the efficacy of pyrethrins aerosol against cockroaches by bioassay.
目的通过生物测试，观察天然除虫菊素杀虫气雾剂对蟑螂的药效。
Improving the content of pyrethrins in pyrethrum through genetic engineering technology is restricted, for little is known about pyrethrins-related genes.
但国内外对于天然除虫菊素合成相关基因的研究很少，从而制约了利用基因工程技术提高除虫菊花中除虫菊素的含量。
Conclusion Pyrethrins aerosol was safe for use and had high efficacy. It should be generalized.
结论天然除虫菊素杀虫气雾剂具有安全，高效等特点，值得推广应用。
To study oxidative damage of II-Pyrethrins on brains of mice and the mechanism of its toxic effect.
探索II -型拟除虫菊酯类农药对小鼠脑的氧化损伤作用及其毒理作用机制。
Azadirachtin, Pyrethrins and Rotenone are toxic to non-target organisms, especially high risk for Bombyx mori Linaeus.
印楝素、除虫菊素和鱼藤酮对非靶标生物的毒性较高，尤其对家蚕风险性大。
Azadirachtin, Pyrethrins and Rotenone are toxic to non-target organisms, especially high risk for Bombyx mori Linaeus.
印楝素、除虫菊素和鱼藤酮对非靶标生物的毒性较高，尤其对家蚕风险性大。
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