七种药剂防治番茄晚疫病的田间防效比较  

Comparison of Field Prevention Effects of Seven Chemicals on Tomato Phytophthora Infestans

作　　者：吴振江[1] 时娟娟[1] 伍琦[1] 刘为胜[1] 威海霞 曹瑞群 Wu Zhenjiang;Shi Juanjuan;Wu Qi;Liu Weisheng;Wei Haixia;Cao Ruiqun(Jiangxi Cotton Research Institute,Jiujiang,Jiangxi 332105,China)

机构地区：[1]江西省棉花研究所,江西九江332105

出　　处：《棉花科学》2021年第5期64-68,共5页Cotton Sciences

基　　金：江西省现代农业产业技术体系建设专项资金资助(JXARS-06-赣北片)

摘　　要：针对2021年江西省赣北地区番茄晚疫病暴发大流行,导致早春番茄大面积减产这一现象,寻求快速有效防治番茄晚疫病的理想药剂。选取江西省棉花研究所蔬菜基地番茄3号大棚,进行了不同化学药剂防治番茄晚疫病的田间药效试验,分析比较各药剂处理防治番茄晚疫病的防治效果。试验结果表明:第1次施药后7天的病指防效以霜脲·锰锌(克露) 72%可湿性粉剂最高,为86.14%,烯酰唑嘧菌(德劲)悬浮剂次之,为85.96%;其它各药剂处理的防效均低于53%;第2次施药后7天的病指防效还是以霜脲·锰锌(克露) 72%可湿性粉剂最高,为97.46%,与其它各药剂处理间的防效差异显著;以霜脲·锰锌处理较C K的增产效果最好,为92.51%,其余处理的增产效果均低于70%,且以氰霜唑处理增产最低,为11.55%。霜脲·锰锌(克露) 72%可湿性粉剂对番茄晚疫病的防控速效性高、防效稳、安全性好,因而推荐其在生产中防控番茄晚疫病,但不可连续使用,要注意与同药理机制的其他药剂轮换使用。In view of the outbreak of tomato Phytophthora infestans in northern Jiangxi Province in 2021,resulting in the large area reduction of tomato production in early spring,seeking the ideal agent for rapid and effective prevention and control of tomato late epidemic.No.3 greenhouse of vegetable base of Jiangxi Cotton Research Institute was selected to carry out field experiments on chemical prevention and control of tomato Phytophthora infestans with different agents,and the difference in prevention and effect of each drug treatment and control of tomato Phytophthora infestans were analyzed and compared.The results showed that the highest 72%humidified powder of 7 days after the first cymoxanil·manganese-zinc(glu)was 86.14%,acrylezolyriacil(German strength)suspension followed by 85.96%;Other agents were treated with less than 53%.Seven days after the second application,the control effect of the disease index was still the highest with cymoxanil·manganese-zinc(glu)72%wettable powder,which was 97.46%,which was significantly different from other treatments·Compare with CK,pattern cymoxanil·manganese-zinc had the best yield increase effect,which was 92.51%,the rest of the pattern was increased by less than 70%,and the lowest yield increase effect Cyazofamid pattern was 11.55%·Cymoxanil-Manganese-zinc(Kelul)72%wettable powder has high speed effect,stable effect and good safety on tomato Phytophthora infestans.Therefore,it is recommended to prevent and control tomato late blight in production,but it cannot be used continuously,pay attention to rotation with other agents with the same pharmacological mechanism.

关 键 词：化学药剂 番茄晚疫病 防治效果 比较 

分 类 号：S641.2[农业科学—蔬菜学]