75%肟菌·戊唑醇WG对蓝莓叶斑病的活性及田间防效  

Bioactivity and field control efficacy of trifloxystrobin·tebuconazole 75%WG against blueberry leaf spot

作　　者：詹振亮 仪传冬 ZHAN Zhenliang;YI Chuandong(Fujian Forestry Vocational Technical College,Nanping 353000,Fujian,China;Biological Cotrol Research Institute,Fujian Agriculture and Forestry University,Fuzhou 350002,China)

机构地区：[1]福建林业职业技术学院,福建南平353000 [2]福建农林大学作物病虫生物防治研究所,福州350002

出　　处：《农药》2024年第1期60-62,共3页Agrochemicals

基　　金：福建省自然科学基金青年项目(2020J05216)。

摘　　要：[目的]蓝莓叶斑病是蓝莓生产中的一种常发病害,造成严重损失,本文目的在于为探讨复配剂75%肟菌·戊唑醇WG用于防治蓝莓叶斑病的可行性。[方法]采用菌丝生长速率法进行室内生物活性测定,通过随机区组设计进行田间药效试验。[结果]75%肟菌·戊唑醇WG对蓝莓叶斑病病原菌的EC_(50)为0.1498mg/L,小于40%苯醚甲环唑SC和25%戊唑醇EC的EC_(50)。75%肟菌·戊唑醇WG270~450ga.i./hm^(2)对蓝莓叶斑病的防治效果好,药后7、14d,田间防效均在80%以上,均高于对照药剂的防效。[结论]75%肟菌·戊唑醇WG对蓝莓树安全,可以在生产上推广使用。[Aims]Blueberry leaf spot is a common disease in blueberry production,which can cause serious losses.This study aims to explore the feasibility of using trifloxystrobin·tebuconazole 75%WG to control blueberry leaf spot disease.[Methods]The mycelial growth rate method was used for laboratory bioassay,and the field efficacy trial was carried out by random block design.[Results]The results show that the EC_(50) of trifloxystrobin·tebuconazole 75%WG against the pathogen of blueberry leaf spot was 0.1498 mg/L,which was less than the EC_(50) of difenoconazole 40% SC and tebuconazole 25%EC.Trifloxystrobin·tebuconazole 75%WG had good control effect on blueberry leaf spot at 270-450 g a.i./ha,with control efficacy more than 80%on day 7 and 14 after application,which was higher than that of the standard product control.[Conclusions]Trifloxystrobin·tebuconazole 75%WG is safe for blueberry trees and can be promoted for use in production.

关 键 词：75%肟菌·戊唑醇WG 蓝莓叶斑病 室内生物活性 田间防效 

分 类 号：S482.2[农业科学—农药学]