五种杀菌剂对川西南山区茶饼病田间防治效果研究  

Control Effects of Five Fungicides on Tea Blister Blight in Southwest Sichuan Mountainous Areas

作　　者：杨春林 杨志刚 席亚东[2] 胡强 杨子威 张梅 颜学海 YANG Chunlin;YANG Zhigang;XI Yadong;HU Qiang;YANG Ziwei;ZHANG Mei;YAN Xuehai(Leshan Plant Protection and Quarantine Station of Sichuan Province,Leshan 614000,China;The Institute of Plant Protection,Sichuan Academy of Agricultural Sciences/Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province,Chengdu 610066;Bamboo Diseases and Pests Control and Resources Development Key Laboratory of Sichuan Province,Leshan Normal University,Leshan 614000,China;The Plant Protection Station,Department of Agriculture and Rural Affairs of Sichuan Province,Chengdu 610066,China;Leshan Seed Management Station of Sichuan Province,Leshan 614000,China)

机构地区：[1]四川省乐山市植保植检站,四川乐山614000 [2]四川省农业科学院植物保护研究所/蔬菜品种改良与种质创新四川省重点实验室,四川成都610066 [3]乐山师范学院/竹类病虫防控与资源开发四川省重点实验室,四川乐山614000 [4]四川省农业农村厅植物保护站,四川成都610066 [5]乐山市种子管理站,四川乐山614000

出　　处：《黑龙江农业科学》2023年第12期34-38,共5页Heilongjiang Agricultural Sciences

基　　金：四川省科技计划项目(2021YFYZ0021)。

摘　　要：茶饼病(Exobasidium vexans Masse)在四川西南山区茶园发生较重,严重影响当地茶叶的产量和质量。为促进山区茶园茶饼病精准用药和科学用药,采用田间小区试验评价5种杀菌剂对川西南山区茶饼病的防治效果,并测定各处理对茶叶生长指标的影响。结果表明,5种杀菌剂对茶饼病的流行均有一定的抑制作用,27%寡糖·吡唑酯和33%锰锌·三唑酮对茶饼病的防治效果较好,两次施药后平均防效分别为86.17%、80.41%和89.07%、86.03%;25%吡唑醚菌酯次之,两次施药后平均防效为77.65%和82.48%;27%寡糖·吡唑酯水乳剂和33%锰锌·三唑酮对茶叶的百芽质量、茶芽密度有明显的促进作用,茶叶理论产量较对照增加111.95%和78.31%。综上,27%寡糖·吡唑酯和33%锰锌·三唑酮可用于川西南山区茶饼病的防控,供试药剂在春夏高温季节使用对茶树安全,无药害风险。Tea blister blight(Exobasidium vexans Masse)is a serious disease in tea plantations in Southwest Sichuan Province,which seriously affects the yield and quality of local tea.In order to promote precise and scientific medication for tea blister blight in tea gardens in mountainous areas of Southwest Sichuan,screen low toxicity and high efficiency chemical pesticides for the prevention and control of tea blister blight in mountainous areas,the control efficacy of five fungicides on tea blister blight in mountain area was evaluated by field plot experiment,and the effects of different treatments on the growth indicators of tea were measured.The results showed that several fungicides had certain inhibitory effects on the epidemic of tea blister blight.Among them,Oligosaccharins·pyraclostrobin 27%EW and Mancozeb·triadimefon 33%DP had better control efficacy on tea blister blight and the control efficacy after two times of application were 86.17%,80.41%and 89.07%,86.03%,respectively.The control efficacy of Pyrazoxystrobin 25%ME on tea blister blight were 77.65%and 82.48%respectively.Oligosaccharins·pyraclostrobin 27%EW and Mancozeb·triadimefon 33%DP had a significant promoting effect on the 100-bud weight and bud density,and the theoretical yield of tea increased by 111.95%and 78.31%,respectively.In summary,Oligosaccharins·pyraclostrobin 27%EW and Mancozeb·triadimefon 33%DP can be used for the prevention and control of tea blister blight in the mountainous areas of southwestern Sichuan.The tested fungicides are nontoxic to tea trees when applicated in high temperature seasons in spring and summer.

关 键 词：川西南山区 茶饼病 杀菌剂 防治效果 安全性 

分 类 号：S435.711[农业科学—农业昆虫与害虫防治]