浙江农业科学 ›› 2025, Vol. 66 ›› Issue (8): 1956-1961.DOI: 10.16178/j.issn.0528-9017.20250200

• 植保技术 • 上一篇    下一篇

5种杀菌剂对杨梅凋萎病的室内毒力及复配增效研究

陈丽萍1(), 商靓婷2, 刘小玲3, 徐明飞1, 任海英4, 周倩倩1, 吴长兴1,*()   

  1. 1.浙江省农业科学院 农产品安全与营养研究所,浙江 杭州 310021
    2.文成县现代农业与康养产业研究院,浙江 文成 325399
    3.文成县农业农村局 农业产业发展中心,浙江 文成 325399
    4.浙江省农业科学院 园艺研究所,浙江 杭州 310021
  • 收稿日期:2025-03-16 出版日期:2025-08-11 发布日期:2025-09-04
  • 通讯作者: 吴长兴(1973—),男,浙江衢州人,副研究员,硕士,主要从事农药应用评价研究与推广工作,E-mail:wucx@zaas.ac.cn
  • 作者简介:陈丽萍(1979—),女,浙江武义人,副研究员,本科,从事农药应用评价研究与推广工作,E-mail:lpchen@zaas.ac.cn
  • 基金资助:
    文成县科技计划项目“杨梅凋萎病药剂筛选及其综合防控技术与应用”(2023NKY09);浙江省“三农九方”科技协作计划项目“设施栽培杨梅重大病虫害发生规律及精准防控技术研发和示范”(2024SNJF073)

Indoor toxicity and synergistic effect of 5 fungicides on twig blight disease of bayberry

CHEN Liping1(), SHANG Liangting2, LIU Xiaoling3, XU Mingfei1, REN Haiying4, ZHOU Qianqian1, WU Changxing1,*()   

  1. 1. Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021,Zhejiang
    2. Wencheng County Modern Agriculture and Health Industry Research Institute, Wencheng 325399, Zhejiang
    3. Agricultural Industry Development Center of Wencheng County Agriculture and Rural Bureau, Wencheng 325399, Zhejiang
    4. Institute of Horticulture,Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
  • Received:2025-03-16 Online:2025-08-11 Published:2025-09-04

摘要:

为筛选适用于杨梅凋萎病的杀菌剂及其复配药剂,采用菌丝生长速率法测定三唑醇、三唑酮、粉唑醇、戊唑醇、肟菌酯5种杀菌剂对杨梅凋萎病菌的毒力,并测定戊唑醇和肟菌酯复配对病原菌的联合毒力。5种杀菌剂对杨梅凋萎病YS26菌株毒力作用由高到低排序为戊唑醇>肟菌酯>三唑醇>粉唑醇>三唑酮;对XJ27菌株毒力作用由高到低排序为戊唑醇>肟菌酯>粉唑醇>三唑醇>三唑酮。戊唑醇和肟菌酯复配后对病原菌YS26和XJ27均表现为相加或者增效作用,戊唑醇∶肟菌酯质量配比为3∶1时,对2种菌株均有增效作用,增效系数分别为1.597 2、1.715 9,其他配比为相加作用或对单一菌株增效。将戊唑醇与肟菌酯以3∶1的质量比例复配时,对杨梅凋萎病具有较强的室内活性,可用于杨梅凋萎病田间药剂的筛选。

关键词: 杨梅凋萎病, 杀菌剂, 毒力测定, 联合毒力

Abstract:

To screen suitable fungicides and their mixtures for controlling twig blight disease of bayberry, the mycelial growth rate method was used to determine the toxicity of five fungicides (triadimenol, triadimefon, flutriafol, tebuconazole, and trifloxystrobin) against the pathogens of twig blight disease. Additionally, the combined toxicity of tebuconazole and trifloxystrobin mixtures was evaluated. The toxicity of the five fungicides against the YS26 strain of the pathogen, ranked from highest to lowest, was as follows: tebuconazole > trifloxystrobin > triadimenol > flutriafol > triadimefon. For the XJ27 strain, the ranking was: tebuconazole > trifloxystrobin > flutriafol > triadimenol > triadimefon. The combination of tebuconazole and trifloxystrobin exhibited additive or synergistic effects against both YS26 and XJ27 strains. At a mass ratio of 3∶1 (tebuconazole∶trifloxystrobin), the mixture showed synergistic effects against both strains, with synergistic coefficients of 1.597 2 and 1.715 9, respectively. Other ratios demonstrated additive effects or synergy against a single strain. The 3∶1 mass ratio of tebuconazole and trifloxystrobin exhibited strong in vitro activity against bayberry twig blight disease, making it a promising candidate for field application.

Key words: bayberry twig blight disease, fungicides, toxicity determination, combined toxicity

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