不同农药对桃细菌性穿孔病菌的毒力和田间防效  

Virulence of Fungicides against Peach Bacterial Shot Hole Pathogen and Control Efficacy of the Disease in Field

作　　者：刘洋 赵文静 沈斐 戴慧俊 朱峰[1] 董京萍[1] 金唯新 纪兆林[1] LIU Yang;ZHAO Wenjing;SHEN Fei;DAI Huijun;ZHU Feng;DONG Jingping;JIN Weixin;JI Zhaolin(College of Horticulture and Plant Protection,Yangzhou University,Jiangsu Yangzhou225009,China;Laboratory of Forestry and Fruit,Lianyungang Academy of Agricultural Sciences,Jiangsu Lianyungang222000,China;Agricultural Service Center of Yangshan Town,Huishan District,Jiangsu Wuxi214155,China;Wuxi Taihu Yangshan Peach Technology Co.,Ltd.,Jiangsu Wuxi214156,China)

机构地区：[1]扬州大学园艺与植物保护学院,江苏扬州225009 [2]连云港市农业科学院果林研究室,江苏连云港222000 [3]无锡市惠山区阳山镇农业服务中心,江苏无锡214155 [4]无锡太湖阳山水蜜桃科技有限公司,江苏无锡214156

出　　处：《现代农药》2020年第5期43-47,共5页MODERN AGROCHEMICALS

基　　金：国家现代农业产业技术体系建设专项(CARS-30-3-02);农业重大技术协同推广计划[XT(18)003]。

摘　　要：采用抑菌圈法测定11种化学农药和7种生物农药对桃细菌性穿孔病菌(Xanthomonas arboricola pv.pruni)的毒力,选出抑菌较好的药剂进行田间防治试验。结果表明,氯溴异氰尿酸、梧宁霉素和农用硫酸链霉素对桃细菌性穿孔病菌的毒力强,EC50值分别为0.0559、0.0651、0.0698 mg/L;噻唑锌的EC50值为0.1166 mg/L,抑菌能力次之;而中生菌素、溴菌腈、噻霉酮和喹啉铜对病菌也有较好的抑制作用,EC50值分别为1.2422、1.5287、2.1716和3.0315 mg/L。田间试验表明,除了噻霉酮,其他试验药剂对桃细菌性穿孔病都有较好的病叶和病指防效,药后5 d的病叶防效为45.88%~93.20%,药后13 d的病叶防效为44.13%~91.38%。综合之,氯溴异氰尿酸、噻唑锌、喹啉铜等化学农药和生物农药梧宁霉素、中生菌素对桃细菌性穿孔病具有较好的防治效果,可选择使用。The virulence of 11 chemical fungicides and 7 biological fungicides against the pathogen Xanthomonas arboricola pv.pruni was determined by inhibition zone method.The fungicides with high virulence were selected for control trials in field.The results showed that chlorobromoisocyanuric acid,tetramycin and streptomycin sulfate were highly toxic to Xanthomonas arboricola pv.pruni,with EC50 values of 0.0559,0.0651 and 0.0698 mg/L,respectively.Zinc thiazole had better antibacterial effect,with EC50 value of 0.1166 mg/L.Zhongshengmycin,bromothalonil,benziothiazolinone and oxine-copper also had good inhibitory effects on the bacterial pathogen,with EC50 values of 1.2422,1.5287,2.1716 and 3.0315 mg/L,respectively.The field control trials showed that the selected fungicides had better control effect on the peach bacterial shot hole except for benziothiazolinone,with the diseased leaved control effects of 45.88%-93.20%5 days after the spray four times,and with the effects of 44.13%-91.38%13 days after the spray.In summary,chemical fungicides such as chlorobromoisocyanuric acid,zinc thiazole,oxine-copper,biological fungicides tetramycin and zhongshengmycin have good control efficacies against peach bacterial shot hole,which can be used selectively.

关 键 词：桃细菌性穿孔病 化学农药 生物农药 毒力 田间防效 

分 类 号：S436.621[农业科学—农业昆虫与害虫防治]