湖南农业大学学报（自然科学版）2025，Vol.51Issue(5)：45-51,7.DOI:10.13331/j.cnki.jhau.2025.05.006
贵州省都匀市茶炭疽病病原鉴定及防治药剂的筛选
Pathogen identification and fungicide screening for tea anthracnose in Duyun City,Guizhou Province
摘要
Abstract
To identify the pathogen responsible for tea anthracnose in Duyun City,Guizhou Province,and to screen for effective fungicides,we isolated and purified the pathogen using tissue isolation,and definitively identified it based on Koch's postulates,morphological characteristics and molecular analysis.The efficacy of 20 selected fungicides against the isolated anthracnose pathogen was assessed using the mycelial growth rate method.The results showed that two strains,T26 and T60,were isolated from tea anthracnose leaves and identified as Colletotrichum fructicola.For the 10 chemical fungicides tested,the EC50 values against T26 and T60 ranged from 0.03 to 166.95 mg/L.Prochloraz exhibited the highest antifungal activity,with EC50 values of 0.03 mg/L and 0.07 mg/L,respectively.For the 10 biocides,the EC50 values ranged from 41.59 to 158.61 mg/L,and chitosan was the most effective,with EC50 values of 41.59 mg/L and 41.84 mg/L,respectively.Prochloraz and chitosan are recommended for the field control of tea anthracnose in Duyun.关键词
茶树/炭疽病/病原鉴定/果生刺盘孢菌/药剂筛选Key words
tea/anthracnose/pathogen identification/Colletotrichum fructicola/fungicide screening分类
农业科技引用本文复制引用
王兴娥,赵永田,管爽,何佳美,杨欣,牟鹏,杨艳,张丽娟,杨雅焯,刘荣..贵州省都匀市茶炭疽病病原鉴定及防治药剂的筛选[J].湖南农业大学学报（自然科学版）,2025,51(5):45-51,7.基金项目
黔南州科技计划项目(黔南科合[2022]09号) （黔南科合[2022]09号）
黔南民族师范学院高层次人才科研专项(2021qnsyrc07) （2021qnsyrc07）
黔南民族师范学院教育质量提升工程项目(2021xjg018,2022xjg038) （2021xjg018,2022xjg038）
贵州省高等学校教学内容和课程体系改革项目(2023346) （2023346）
