纳米级铜80%波尔多液可湿性粉剂对烟草叶斑类病害的防治效果  

Control effects of nano-grade copper 80%Bordeaux mixture wettable powder on leaf spot diseases of tobacco

作　　者：马欣[1] 寇宝实 李继博 彭超 刘倩雯 高萌萌 张崇[3] 顾铭 MA Xin;KOU Bao-shi;LI Ji-bo;PENG Chao;LIU Qian-wen;GAO Meng-meng;ZHANG Chong;GU Ming(Liaoning Province Company of China Tobacco Corporation,Shenyang 110013,China;Shenyang Hongqi Forest Pesticide Co.,Ltd.,Shenyang 110141,China;Plant Protection College,Shenyang Agricultural University,Shenyang 110866,China)

机构地区：[1]中国烟草总公司辽宁省公司,沈阳110013 [2]沈阳红旗林药有限公司,沈阳110141 [3]沈阳农业大学植物保护学院,沈阳110866

出　　处：《湖北农业科学》2023年第11期60-64,共5页Hubei Agricultural Sciences

基　　金：中国烟草总公司辽宁省公司科技项目(2021210000200014);基于提质增效的烤烟绿色防控关键技术集成与应用项目。

摘　　要：选用新型农药纳米级铜80%波尔多液可湿性粉剂为试验药剂,常规80%波尔多液可湿性粉剂为对照药剂,以4种主要烟草叶斑类病害角斑病、野火病、靶斑病、赤星病作为防控对象,分别在辽宁省开原市和凤城市试验地连续2年开展了田间防治试验。结果表明,与常规80%波尔多液可湿性粉剂相比,纳米级铜80%波尔多液可湿性粉剂对烟草角斑病、野火病、靶斑病和赤星病具有更好的防治效果,用量1 050 g/hm~2连续施药2次,最好防治效果分别可达75.61%、76.90%、81.35%和60.71%。为了验证纳米级铜80%波尔多液可湿性粉剂的安全性,在开原市试验地进行烟株农艺性状调查。结果表明,纳米级铜80%波尔多液可湿性粉剂处理后的烟株,株高为118.12 cm,茎围为9.11 cm,有效叶片数为21.51片,最大叶面积为2 487.18 cm2,均略高于对照药剂,且对烟株生长发育无不良影响。A new pesticide,nano-grade copper 80%Bordeaux mixture wettable powder,was used as the test agent and conventional 80%Bordeaux mixture wettable powder was used as the control agent.Field control experiments were carried out in Kaiyuan City and Fengcheng City of Liaoning Province for two years for 4 major leaf spot diseases of tobacco,including angular spot,wild fire,target spot and brown spot diseases.The results showed that compared with the conventional 80%Bordeaux mixture wettable powder,the na⁃no-grade copper 80%Bordeaux mixture wettable powder had a better control effect on tobacco angular spot,wild fire,target spot and brown spot diseases.The dosage of 1050 g/hm2 was applied twice continuously,and the best control effects were 75.61%,76.90%,81.35%and 60.71%,respectively.In order to verify the safety of nano-grade copper 80%Bordeaux mixture wettable powder,the agro⁃nomic characteristics of tobacco plants were investigated in Kaiyuan City experimental field.The results showed that the plant height was 118.12 cm,the stem circumference was 9.11 cm,the effective leaf number was 21.51,and the max leaf area was 2487.18 cm2,which were all slightly higher than those of the control agent,and this new pesticide had no adverse effect on the growth and develop⁃ment of tobacco plants.

关 键 词：纳米级铜 波尔多液 烟草叶斑类病害 防治效果 农艺性状 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]