[1]寸海春,何鹏搏,何鹏飞,等.嘧菌酯、苯醚甲环唑防治玉米灰斑病效果[J].江苏农业科学,2025,53(10):139-144.
　Cun Haichun,et al.Control effects of azoxystrobin and difenoconazole on maize gray leaf spot[J].Jiangsu Agricultural Sciences,2025,53(10):139-144.
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嘧菌酯、苯醚甲环唑防治玉米灰斑病效果()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第10期
页码:
139-144
栏目:
植物保护
出版日期:
2025-05-20

文章信息/Info

Title:
Control effects of azoxystrobin and difenoconazole on maize gray leaf spot
作者:
寸海春1; 何鹏搏1; 何鹏飞1; 吴毅歆2; 赵正龙1; 亢波1; Shahzad Munir1; 何月秋1
1.云南农业大学植物保护学院，云南昆明 650201； 2.云南农业大学农学与生物技术学院，云南昆明 650201
Author(s):
Cun Haichun; et al
关键词:
嘧菌酯; 苯醚甲环唑; 防效; 毒力测定; 灰斑病; 产量
Keywords:
-
分类号:
S435.131.4+9
DOI:
-
文献标志码:
A
摘要:
为有效防控冷凉山区玉米灰斑病，选取5种杀菌剂进行玉米灰斑病室内毒力测定，并在2个不同高海拔地区试验种植2个抗病性不同的玉米品种，于大喇叭口期采用药土法施用675 g a.i./hm2的30%嘧菌酯悬浮剂和30%苯醚甲环唑悬浮剂，在灌浆期及蜡熟期统计玉米灰斑病发病情况，成熟期检测2种杀菌剂对玉米吊苞情况、玉米性状及产量的影响，测定玉米茎秆及籽粒的农药残留量。结果表明，嘧菌酯及苯醚甲环唑能很好地抑制灰斑病菌孢子的萌发，有效抑制中浓度(EC50值)小于3 mg/L。施用杀菌剂的玉米叶片青绿，保叶效果明显，可有效延长叶片功能期。30%嘧菌酯悬浮剂对灰斑病的防效在93%~100%之间，对果穗下垂的防效在83%以上，挽回产量25.39%~4401%；30%苯醚甲环唑悬浮剂效果次之，灰斑病防效在29%~75%之间，对果穗下垂的防效在79%以上，挽回产量在1412%~30.94%之间，玉米籽粒及茎秆中嘧菌酯及苯醚甲环唑残留量均低于0.5 μg/kg。在大喇叭口期采用药土法施用675 g a.i./hm2嘧菌酯和苯醚甲环唑能安全有效地防控玉米灰斑病，挽回产量损失。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期：2024-04-11
基金项目：国家重点研发计划(编号：2023YFD1401500)。
作者简介：寸海春(1994—)，女，云南腾冲人，博士研究生，研究方向为植物病理学。E-mail：550043063@qq.com。
通信作者：何月秋，博士，教授，博士生导师，研究方向为植物病理学。E-mail：ynfh2007@163.com。
更新日期/Last Update: 2025-05-20