10%浏阳霉素乳剂防治茶橙瘿螨效果初报  

Effects of 10%EC Liuyangmycin Against Tea Pest Mites

作　　者：邓欣[1] 谭济才[1] 侯柏华[1] 

机构地区：[1]湖南农业大学生物安全科技学院,长沙410128

出　　处：《中国农学通报》2006年第2期320-322,共3页Chinese Agricultural Science Bulletin

基　　金：湖南省科技重大专项"优质茶叶新品种选育及无公害茶叶生产关键技术研究与示范("04NK1003)。

摘　　要：浏阳霉素是从土壤中的灰色链霉菌浏阳变种在发酵过程中提炼出来的杀螨活性物质。应用10%浏阳霉素乳剂对茶橙瘿螨(AcaphyllatheaeWatt)进行了室内药效测定、田间小区试验、大田示范试验和大面积防治。结果表明:室内对茶橙瘿螨用1000倍液防治,10d后防效达95.3%,1500倍液防效达89.3%。田间小区试验用1000倍和1500倍防治茶橙瘿螨,10d后校正防效分别达86.9%和85.6%;大田示范试验用1200倍液防效在5d后达86.1%,30d后防效仍达57.9%;大面积推广使用1000倍液药后5d、15d、30d的平均校正防治效果分别为80.6%、71.2%、43.8%。与对照药剂灭虫灵防治效果基本相当,但比辛硫磷的持效期长。是一种在无公害茶园中值得推广的高效、低毒、低残留的无公害生物制剂。Liuyangmycin, dynamic material against mites, are isolated from fermentation of Streptomyces griseius var. liuyangensis. Control tests of 10% EC Liuyangmycin against Acaphylla theae （Watt） were done in laboratory, field plot and field respectively. In laboratory tests, when applied at 1：1000 solution on A. theae, 10% EC Liuyangmycin provided 95.3% insect control 10 after application, which compared with 89.3% mortality for application 1：1,500 solution. Control effect of 10% EC Liuyangmycin 1：1,000 solution and 1：1,500 solution against A. theae reached 86.9% and 85.6% respectively, 10 days after the application in the field plot experiment. Application of the miticide （1：1,200 solution） against A. theae showed that the integrated control effect obtain 86.1% （5 days） and even 57.9% （30 days） in the field trial. In field tests 10% EC Liuyangmycin 1：1,000 solution provided 80.6%, 71.2%, 43.8% average efficacy after 5d, 15d, 30d. Those control effects were as good as the treatments of Avermecinbla and Phoxim. It is a kind of safety biological pesticide with high efficient, low toxic and low residue peculiarity, which applied in tea gardens.

关 键 词：浏阳霉素 萘橙瘿螨 防治效果 茶园 

分 类 号：S812.6[农业科学—草业科学] S435.711[农业科学—畜牧学]