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作者就复方茶皂素对哒螨灵杀灭桔全爪螨(Panonychus citri McG.)的增效作用,进行了室内及田间药效试验。按茶皂素和哒螨灵有效成分比为22:5混配成27％416杀螨剂乳油。室内试验结果表明:茶皂素单剂LC_(50)452.2μg/ml,哒螨灵单剂LC_(50)0.3685μg/ml,混剂LC_(50)0.3733μg/ml,增效18.67倍。室内杀卵及田间药效试验结果表明:27％416乳油稀释2000、3000、4000、5000、6000倍液,卵校正死亡率分别为94.92％、93.03％、89.09％、85.90％、81.51％,20％速螨酮WP4000倍液为90.44％。田间施药后第28天分别为89.36％、97.64％、90.99％、97.95％、97.38％。而20％速螨酮WP4000倍液为98.90％。最后讨论了茶皂素的增效机制,并认为茶皂素在农药乳油中的增效作用,具有极大的开发与生产价值,有显著的社会、生态和经济效益。
In this paper, the synergistic effect of compound teasapogenin on the reduction of pyridaben mite (Panonychus citri McG.) Was studied in laboratory and field. According to tea saponin and pyridaben active ingredient ratio of 22: 5 mixed into 27% 416 acaricide EC. The results of laboratory tests showed that LC2 (50) 452.2μg / ml, pyridaben LC50 (50) 0.3685μg / ml and mixture LC_ (50) 0.3733μg / ml of tea saponin had a synergistic effect of 18.67 times. The results of indoor oviposition and field efficacy trials showed that the corrected mortalities of eggs in 27% 416 EC were 94.92%, 93.03%, 89.09%, 85.90%, 81.51%, 20% % Speed mite WP4000 times 90.44%. The first 28 days after application of pesticides were 89.36%, 97.64%, 90.99%, 97.95% and 97.38% respectively. While the 20% speed mite WP4000 times 98.90%. Finally, the synergistic mechanism of tea saponin was discussed. Tea syrup was found to have synergistic effect in agrochemical emulsifiable concentrate, which had great value for development and production and had significant social, ecological and economic benefits.