3种新型生物药剂对辣椒疫病的田间药效评价  

Evaluation of the Efficacy of Three New Biopesticides in Field Trials for Chili Pepper Blight Control

作　　者：关祥斌 韩鹏 罗小杰 崔国卿 周琳[4] 李好海 Guan Xiangbin;Li Haohai;Han Peng;Cui Guoqing;Luo Xiaojie;Zhou Lin(Henan Provincial Plant Protection and Quarantine Station,Zhengzhou Henan 450002,China)

机构地区：[1]河南省植物保护植物检疫站,河南郑州450002 [2]中捷四方生物科技股份有限公司,北京101102 [3]临颍县植保植检站,河南临颍462600 [4]河南农业大学,河南郑州450002

出　　处：《农药科学与管理》2024年第11期49-53,共5页Pesticide Science and Administration

基　　金：河南省大宗蔬菜产业技术体系项目(HARS-22-07-G7)。

摘　　要：为明确生物药剂对辣椒疫病田间药效评价,通过8个试验处理,完成对辣椒疫病绿色防控规律和技术探索。结果表明:在田间条件下,3种产品对辣椒疫病均有一定防效。第2次施药后21 d,萜烯醇病情指数≥0.45,防效≤87.7%。枯草芽孢杆菌防效次之,病情指数≥0.67,防效≤82.7%。萜烯醇和大丽轮枝孢激活蛋白产量较高,分别为5 127.50和4 988.00 kg/hm^(2),较对照增产18.11%和15.82%,且有显著性差异。综上,萜烯醇1 350 g/hm^(2)用量对辣椒疫病防效最好,枯草芽孢杆菌次之。This study aims to evaluate the effectiveness of biological pesticides in the field trial for the prevention and control of pepper disease,eight experimental treatments were designed to investigate the green prevention and control practices and technologies of pepper blight.The results showed that under field conditions,all three products had a certain degree of preventive effect.Twenty-one days after the second application,Timorex Glod achieved the lowest disease index of0.45,with a highest control effect of 87.7%.Bacillus subtilis had the second highest efficacy,with a lowest disease index of 0.67 and a highest efficacy of 82.7%.The higher yield was achieved by the group treated by Timorex Glod and VDAL in Colletotrichum dahliae,at 5 127.50 kg/hm^(2)and 4988.00 kg/hm^(2),respectively,reflecting increases of 18.11% and 15.82% compared to the control group,with significant differences.In conclusion,the dosage of 1 350 g/hm^(2)Timorex Glod demonstrated the best control effect against pepper blight,followed by Bacillus subtilis.

关 键 词：辣椒 疫病 防效 产量 

分 类 号：S482.2[农业科学—农药学] S481.9[农业科学—植物保护]