摘要
筛选高效的猕猴桃溃疡病防治药剂和配套的田间施药技术,为病害的防治提供有效措施和技术指导,以提升植保水平和农产品品质。采用管碟法对10种试验药剂进行了室内抑菌初筛,田间试验中采用单因素随机区组设计,同时设置清水对照。结果表明:(1)室内筛选:从10种药剂中筛选出4种抑菌效果较好的药剂,分别为80%乙蒜素、0.15%四霉素、3%中生菌素和98%盐酸土霉素,抑菌圈直径均大于40 mm,抑菌率分别为70.49%、70.49%、68.85%、65.57%,透明度均在+++以上,其中80%乙蒜素抑菌效果最好,对猕猴桃溃疡病菌的抑制中浓度EC50为0.4978 mg/L。(2)田间防效:稀释400倍的乙蒜素防效最高,达68.77%;采用灌根+注干的施药方式防效最好,达到71.41%。80%乙蒜素及配套的使用方法可为猕猴桃溃疡病防治提供新手段,具有较好的应用前景和推广价值。
The study aims to screen highly efficient bactericides against the kiwifruit canker and determine matching field application methods for disease prevention and control.The tube plate method was used to determine the virulence of 10 bactericides,single-factor random block design was used in field experiment,and water was taken as check.The results showed that four bactericides,80%ethylicin,0.15%tetramycin,3%zhongshengmycin and 98%oxytetracycline,had better control efficacy with inhibition zone more than 40 mm,and the bacteriostasis rate was 70.49%,70.49%,68.85%and 65.57%,respectively.The transparency was above+++.80%ethylicin had the best antibacterial effect with the indoor toxicity EC50 of 0.4978 mg/L.Field efficacy trials showed that 400 times diluted ethylicin had the best control efficiency of 68.77%.The best drugdelivery way was root-irrigation+trunk injection,the control efficiency reached 71.41%.80%ethylicin and its matching application methods can provide a new way for preventing kiwifruit canker.
作者
胡容平
石军
林立金
杨东升
叶慧丽
陈诚
范中菡
陈松
陈庆东
Hu Rongping;Shi Jun;Lin Lijin;Yang Dongsheng;Ye Huili;Chen Cheng;Fan Zhonghan;Chen Song;Chen Qingdong(Institute of Plant Protection,Sichuan Academy of Agricultural Sciences/Key Laboratory of Integrated Pest Management on Crops in Southwest,Chengdu 610066;Mianyang Academy of Agricultural Sciences,Mianyang Sichuan 621023;Institute of Pomology and Olericulture,Sichuan Agricultural University,Chengdu 611130)
出处
《中国农学通报》
2020年第6期112-116,共5页
Chinese Agricultural Science Bulletin
基金
四川省科技培训计划项目“四川主要果树控害增产、提质增效技术培训”(2018KZ0069)
四川省财政创新能力提升工程项目“四川特色水果及中药材主要病害绿色防控技术研究”(2016GYSH-016)
四川省科技计划项目“猕猴桃溃疡病综合防控技术集成研究示范”(2017FZ0022)
四川省科技计划项目“四川猕猴桃溃疡病病原及防控技术研究”(2018JY0037).
关键词
猕猴桃溃疡病
药剂筛选
室内毒力
田间防效
kiwifruit canker
bactericide screening
indoor toxicity
field efficacy
