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目的对28种植物提取物的杀蝇活性进行初步筛选,为寻找和开发高效的植物源杀蝇剂奠定基础。方法采用点滴法测定了28种植物的乙醇提取物对家蝇的毒杀活性。结果通过试验发现蛇莓、牵牛子、白头翁3种的乙醇提取物质具有明显的家蝇毒杀活性,在0.856 g/只的供试剂量下,处理2、6、12、24 h后对家蝇的毒杀死亡率均大于85%。结论蛇莓、白头翁、牵牛子的乙醇粗提物对家蝇具有很好的毒杀活性,可作为植物源农药开发研究。
Objective To preliminary screening the fly-killing activity of 28 plant extracts and lay the foundation for the search and development of efficient plant-source fly-killing agents. Methods Toxicity of ethanol extracts from 28 species of plants to housefly was determined by the method of spotting. Results The results showed that the ethanol extracts from snakeberry, camellia seed and Pulsatilla chinensis had obvious toxicity to housefly. At the doses of 0.856 g / The poisoning kill more than 85%. Conclusion The crude ethanol extracts of snakeberry, Pulsatilla and Camellia oleifera possess good toxicity to housefly, and can be used as research and development of plant-derived pesticides.