105亿CFU/g多粘菌·枯草菌可湿性粉剂对烟草青枯病的防治效果  

Control Effect of 10.5 Billion CFU/g Paenibacillus polymyxa·Bacillus subtilis WP Against Tobacco Bacterial Wilt

作　　者：陈文华 江连强[1] 黎昌明 徐传涛[2] 雷晓[2] 刘晓莹 王茜 刘倩雯 CHEN Wenhua;JIANG Lianqiang;LI Changming;XU Chuantao;LEI Xiao;LIU Xiaoying;WANG Qian;LIU Qianwen(Liangshan Branch of Sichuan Tobacco Company,Xichang Sichuan 615000;Luzhou Branch of Sichuan Tobacco Company,Luzhou Sichuan 646000;Plant Protection College,Shenyang Agricultural University,Shenyang Liaoning 110866;Shenyang Hongqi Forest Pesticide Co.,Ltd.,Shenyang Liaoning 110141)

机构地区：[1]四川省烟草公司凉山州公司,四川西昌615000 [2]四川省烟草公司泸州市公司,四川泸州646000 [3]沈阳农业大学植物保护学院,辽宁沈阳110866 [4]沈阳红旗林药有限公司,辽宁沈阳110141

出　　处：《现代农业科技》2024年第9期80-84,共5页Modern Agricultural Science and Technology

基　　金：四川省烟草公司科技项目(SCYC202113)。

摘　　要：烟草青枯病是一种毁灭性的细菌性土传病害,其病原菌是青枯雷尔氏菌(Ralstonia solanacearum),生物防治是行之有效的烟草青枯病绿色防控技术措施。本研究选用新农药105亿CFU/g多粘菌·枯草菌可湿性粉剂,开展了其对烟草青枯病的室内抑菌试验和田间药效试验。结果表明,105亿CFU/g多粘菌·枯草菌可湿性粉剂防治烟草青枯病效果显著,能减轻该病害的发生程度,药剂用量为900 g/hm^(2)时田间防效可达76.08%;同时,施用105亿CFU/g多粘菌·枯草菌可湿性粉剂还能改善烟草的株高、茎围、叶片数、最大叶面积、产量、上等烟比例和中上等烟比例等农艺性状和经济性状。105亿CFU/g多粘菌·枯草菌可湿性粉剂推荐用量为600~900 g/hm^(2)。Tobacco bacterial wilt is a destructive bacterial soil-borne disease,and its pathogen is Ralstonia solanacearum.Biological control is an effective green prevention and control technology for tobacco bacterial wilt.In order to explore the control effect of the new pesticide 10.5 billion CFU/g Paenibacillus polymyxa·Bacillus subtilis WP against tobacco bacterial wilt,this study conducted indoor antibacterial and field efficacy experiments.The results showed that 10.5 billion CFU/g Paenibacillus polymyxa·Bacillus subtilis WP had a significant effect on the prevention and control of tobacco bacterial wilt,and could reduce the occurrence degree of the disease.When the dosage of the agent was 900 g/hm^(2),the field control effect could reach 76.08%.At the same time,the application of 10.5 billion CFU/g Paenibacillus polymyxa·Bacillus subtilis WP could also improve the agronomic and economic characteristics of tobacco,including plant height,stem circumference,leaf number,maximum leaf area,yield,proportion of superior tobacco leaves and proportion of middle and superior tobacco leaves.600-900 g/hm^(2) is the recommended dosage for 10.5 billion CFU/g Paenibacillus polymyxa·Bacillus subtilis WP in the prevention and control of tobacco bacterial wilt.

关 键 词：烟草青枯病 生物防治 105亿CFU/g多粘菌·枯草菌可湿性粉剂 室内抑菌 田间防效 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]