摘要
本文就茶皂素对尼索朗杀灭桔全爪螨的增效作用，进行了室内及田间药效试验。按茶皂素和尼索朗的有效成分比３０．５∶１．５混配成３２％４１６杀螨剂乳油，室内杀卵试验结果表明：茶皂素单剂不杀卵，５％尼索朗单剂ＬＣ５００．２１９１ｕｇ／ｍｌ，混剂ＬＣ５００．２３２６ｕｇ／ｍｌ，增效６１．８倍。田间药效试验结果表明：３２％４１６乳油稀释２０００、２５００、３０００倍液，施药后第３天防治效果分别为９９．２％、９８．０％、９６．５％；第４０天分别为９８．８％、９８．７％、９６．２％。５％尼索朗乳油２０００倍液对照，第３与第４０天分别为＋１１．６％（虫口增加）和１００％。茶皂素在农药乳油中的增效作用，使尼索朗有效成分用量减少７０％，有极显著的社会。
The Synergism of teasaponin on killing Panonychus citri Mcg of hexythiazox was assaged both in the laboratory and in the fields. A mixed insectcide EC of 32% active components was made up of 95.3% teasaponin and 4.7% hexythiazox. The results of tests in the laboratory showed teasaponin alone couldn't kill the eggs; While the LC 50 of 5% hexythiazox EC alone is 0.2191 ug/ml, the LC 50 of the mixed insectcide which synergized 61.8 times is 0.2326 ug/ml. The results of trials in the fields showed that when the 32% 416 EC was diluted 2000, 2500, 3000 times and sprayed, the control efficiency of the 3th day and the 40th. day were 99.2%,98.0%, 96.5%; 98.8%,98.7%and 96.2% respectively, while the effect of the 3th day and the 40th day of the contrast-5% hexythiazox diluted 2000 times, were +11.6%(increased) and 100% . The Synergism of teasaponin in insectcides EC could decrease 70% the amount of hexythiazox, so the social, ecological and economical efficiency was quite significant.
出处
《激光生物学报》
CAS
CSCD
1997年第2期1093-1096,共4页
Acta Laser Biology Sinica
基金
湖南省高新技术重大项目
