摘要
为科学合理选用防治白叶枯病的杀菌剂,本研究采用田间人工剪叶接种方法,开展了7种杀菌剂对白叶枯病防效评价。测试的杀菌剂对白叶枯病的田间防效和病斑抑制率均差异显著,其中20%噻唑锌SC防效最好,其次是20%噻菌铜SC,其他药剂防效和病斑抑制效果均较差。20%噻唑锌SC 450.00 mL/hm^2喷施2次处理的防效达62.84%、病斑抑制率为73.11%;20%噻菌铜SC 450.00 mL/hm^2防效为43.15%,病斑抑制率为54.84%。高效药剂的合理选用对提高病害防效具有显著作用。20%噻唑锌SC和20%噻菌铜SC是目前防治白叶枯病的较好药剂,建议轮换使用。
To scientifically and rationally select fungicides for the control of rice bacterial blight caused by Xanthomonas oryzae pv.oryzae,the control effect of 7 fungicides was evaluated.The result showed that there were significant differences in field control efficacy and lesion inhibition rate,among which zinc thiazole 20%SC was the best,followed by thiodiazole-copper 20%SC,while other fungicides showed poor efficacy and lesion inhibition rate.The control efficacy and lesion inhibition rate of spraying zinc thiazole 20%SC at 450.00 mL/hm^2 twice were 62.84%and 73.11%,respectively,while those of thiodiazole-copper 20%SC at 450.00 mL/hm^2 were 43.15%and 54.84%,respectively.Among the tested fungicides,Zinc thiazole 20%SC and thiodiazole-copper 20%SC are the best and can be recommended to be used alternatively in rice bacterial blight control.
作者
冯爱卿
陈深
汪聪颖
陈凯玲
封金奇
杨健源
曾列先
朱小源
FENG Aiqing;CHEN Shen;WANG Congying;CHEN Kailing;FENG Jinqi;YANG Jianyuan;ZENG Liexian;ZHU Xiaoyuan(Plant Protection Research Institute,Guangdong Academy of Agricultural Sciences,Guangdong Provincial Key Laboratory of High Technology for Plant Protection,Guangzhou 510640,China)
出处
《植物保护》
CAS
CSCD
北大核心
2020年第4期282-286,共5页
Plant Protection
基金
水稻产业技术体系(CARS-01-32,2019KJ105)
国家重点研发计划(2016YFD0300707,2017YFD0100100)
广东省科技项目(2015B020231003,2017A020224014)
广东省农业科学院学科团队建设项目(201613TD)。
关键词
水稻
白叶枯病
杀菌剂
防效
rice
rice bacterial blight
fungicide
control effect