荸荠秆枯病药剂筛选与防治研究  

Fungicide Screening and Control of Stem Blight of Eleocharis dulcis

作　　者：赖小芳[1] 余山红[1] 杨昌亮 李林 程序 陈孝赏[1] LAI Xiaofang;YU Shanhong;YANG Changliang;LI Lin;CHENG Xu;CHEN Xiaoshang(Taizhou Academy of Agricultural Sciences,Linhai,Zhejiang 317000;Taizhou Bureau of Agriculture and Rural Affairs,Taizhou,Zhejiang 318002;Zhejiang Agricultural and Rural Big Data Development Center,Hangzhou 310020)

机构地区：[1]浙江省台州市农业科学研究院,浙江临海3I7000 [2]浙江省台州市农业农村局,浙江台州318002 [3]浙江省农业农村大数据发展中心,杭州310020

出　　处：《中国农学通报》2022年第2期78-86,共9页Chinese Agricultural Science Bulletin

基　　金：浙江省台州市科技计划农业类项目“荸荠秆枯病综合防治技术研究及应用”(180lny08)。

摘　　要：为了筛选及评价不同药剂的功效,采用菌丝生长速率法测定荸荠秆枯病菌对41种杀菌剂的敏感性,结果显示:250 g/L丙环唑乳油等18种杀菌剂抑菌效果最好,抑菌效率达100%;其次是43%氟菌·肟菌酯悬浮剂、560 g/L嘧菌·百菌清悬浮剂、250 g/L嘧菌酯悬浮剂,抑菌效率分别为99.1%、98.3%、95.1%。田间药剂防治筛选结果表明:560 g/L嘧菌·百菌清悬浮剂、250 g/L嘧菌酯悬浮剂对荸荠秆枯病的控制效果最好,均达74.0%以上,病害对产量影响较少;其次是10%苯醚甲环唑水分散粒剂与43%氟菌·肟菌酯悬浮剂,控制效果在66.0%以上,对产量有一定的影响;发病最严重的是CK,发病率为94.2%,病情指数为96.14,对产量、品质影响严重。To screen and evaluate the efficacy of different fungicides,the susceptibility of 41 fungicides to Cylindrosporium eleocharidis was measured by mycelium growth rate method.The results indicated that 18 fungicides had good antibacterial effect,among them,250 g/L propiconazole EC had the best efficacy of 100%,followed by 43%fluopyram-trifloxystrobin SC,560 g/L azoxystrobin-chlorothalonil SC and 250 g/L azoxystrobin SC,which had the efficacy of 99.1%,98.3%and 95.1%,respectively.Field efficacy test showed that 560 g/L azoxystrobin-chlorothalonil SC and 250 g/L azoxystrobin SC had the best control effect on stem blight of Eleocharis dulcis,both above 74.0%,and the yield was less affected.10%difenoconazole water dispersible granule and 43%fluopyram-trifloxystrobin SC had a control effect above 66.0%,but had certain influence on the yield.As to the incidence rate,that of CK was the most serious,with an incidence rate of94.2%and a disease index of 96.14,causing serious effect on yield and quality.

关 键 词：荸荠 秆枯病 药剂筛选 控制效果 发病率 产量 

分 类 号：S645.3[农业科学—蔬菜学]