2-巯基苯并噻唑锰锌对玉米茎基腐病的室内毒力及田间药效试验  

Toxicity Assay and Field Control Effect of 2-mercaptobenzothiazole Manganese Zinc Aqueous against Corn Stalk Rot

作　　者：刘艳[1] 李梦姣[1] 王振军[1] 雷晓天[1] 郭志刚[1] 郭振营[1] 张栩[1] LIU Yan;LI Meng-jiao;WANG Zhen-jun(Xinxiang Academy of Agricultural Science of Henan,Xinxiang,Henan 453003)

机构地区：[1]河南省新乡市农业科学院,河南新乡453003

出　　处：《安徽农业科学》2021年第3期150-151,195,共3页Journal of Anhui Agricultural Sciences

摘　　要：采用含毒介质生长速率法测定2-巯基苯并噻唑锰锌对禾生腐霉菌的室内毒力,并将该药剂制成20%悬浮剂,研究其防治玉米茎基腐病的田间防效试验。室内毒力测定结果表明,2-巯基苯并噻唑锰锌对菌丝生长抑制的EC 50为50.8651 mg/L。田间试验结果表明,20%2-巯基苯并噻唑锰锌悬浮剂120 g/hm^(2)拌种处理防治玉米茎基腐病的效果优于传统杀菌剂80%代森锰锌可湿性粉剂120 g/hm^(2),对玉米的增产效果也明显优于80%代森锰锌可湿性粉剂120 g/hm^(2),对玉米出苗时间没有影响,玉米出苗率略有增加。The toxicity of 2-mercaptobenzothiazole manganese zinc were tested against the corn stalk rot pathogens by toxic media method in lab,and their field control efficacy test was also carried out by 20% 2-mercaptobenzothiazole manganese zinc aqueous suspension concentrate.The results indicated that 2-mercaptobenzothiazole manganese zinc EC 50 was 50.8651 mg/L for mycelial growth was respectively.The field control efficacy test results showed that seed mixing with 20% 2-thibenzothiazole manganese zinc suspension 120 g/hm^(2) had a better effect than the traditional fungicide 120 g/hm^(2),80%mancozeb wettable powder,significantly better than the 80%mancozeb wettable powder 120 g/hm^(2),had no effect on the emergence time of corn,and the emergence rate of corn was slightly increased.

关 键 词：2-巯基苯并噻唑锰锌 玉米茎基腐病 室内毒力 田间药效 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]