生物农药对茶白星病的防治效果与农残安全评价  

Efficacy and Safety of Biological Agents for Controlling White Scab on Tea Plants

作　　者：李向阳[1] 王庆森[2] 

机构地区：[1]贵州大学绿色农药与农业生物工程教育部重点实验室,贵州贵阳550025 [2]福建省农业科学院茶叶研究所/国家茶树改良中心福建分中心,福建福安355015

出　　处：《茶叶学报》2017年第3期145-147,共3页Acta Tea Sinica

基　　金：国家重点研发计划项目(2016YFD0200900);贵州省科技厅农业攻关项目[黔科合NY(2014)3024];贵州省教育厅自然科学研究项目[黔教合KY字(2013)]

摘　　要：为筛选安全有效地防治茶白星病的生物药剂,开展了生物药剂氨基寡糖素、嘧啶核苷类抗菌素及其与赤·吲乙·芸苔混配对湄潭茶园茶白星病的防效研究。结果表明:生物药剂氨基寡糖素、嘧啶核苷类抗菌素对茶白星病的防效分别为69.36±1.63%和73.92±1.62%;将氨基寡糖素、嘧啶核苷类抗菌素分别与赤·吲乙·芸苔等比例混配后,防效分别为74.24±3.17%和81.39±2.29%,表明氨基寡糖素、嘧啶核苷类抗菌素结合赤·吲乙·芸苔联合使用对防治茶白星病具有很显著的效果,且施药2d后农残检测均可达欧盟标准,可以在我省茶园大面积推广应用。Two biological agents for prevention and control of white scab disease on tea bushes were evaluated for their efficacies and pesticide residues after application.The control efficacies on white scab of oligosaccharins(OS),pyrimidine nucleoside antibiotic(PNA),OS+VitaCat(OV)and PNA+VitaCat+Thiophanate-methyl(PVT)by low capacity electrostatic spraying on the tea bushes at a plantation were determined.OS and PNA were found to be69.36±1.63% and 73.92±1.62% effective,respectively;while OV and PVT,74.24±3.17% and 81.39±2.29% effective,respectively.It was,thus,concluded that the combined application of the biological and organic pesticides could be useful in the disease control.Furthermore,residues of the drugs two days after spraying were tested to meet the EU safety standards.Consequently,it was recommended that these agents be promoted for white scab control and/or prevention at the tea plantations in Fujian.

关 键 词：茶白星病 生物药剂 药剂混配 防治效果 

分 类 号：S435.711[农业科学—农业昆虫与害虫防治]