湖南农业大学学报（自然科学版）2025，Vol.51Issue(4)：48-53,6.DOI:10.13331/j.cnki.jhau.2025.04.006
江西省番茄灰叶斑病病原菌鉴定及部分杀菌剂的防效
Pathogen identification and control efficacy of selected fungicides on gray leaf spot of tomato(Solanum lycopersicum)in Jiangxi Provience
摘要
Abstract
To identify the causal agent of gray leaf spot on Solanum lycopersicum and to screen for effective control measures,the pathogen was characterized through morphological observation,pathogenicity test and phylogenetic analysis,and the field efficacy of 19 fungicides against this disease was evaluated.The results showed that the isolated pathogen formed colonies that were yellow on the obverse and yellowish-brown on the reverse.The conidia were brick-like,with 1-3 transverse and several longitudinal septa.Based on the pathogenicity tests,as well as phylogenetic analysis of the ITS and GAPDH gene sequences,the pathogen causing gray leaf spot of Solanum lycopersicum in Jiangxi Province was identified as Stemphylium lycopersici.65%zineb wettable powder(WP)showed the best control efficacy against gray leaf spot of Solanum lycopersicum with an efficacy of 71.35%,followed by 75%chlorothalonil WP with an efficacy of 68.77%.These fungicides could be used alternately in production to delay the development of resistance in the pathogen causing gray leaf spot on Solanum lycopersicum.关键词
番茄/灰叶斑/病原菌鉴定/杀菌剂/防效Key words
Solanum lycopersicum/gray leaf spot/pathogen identification/fungicide/control efficacy分类
农业科技引用本文复制引用
邹芬,熊正葵,王春庆,罗向东,马辉刚,何烈干..江西省番茄灰叶斑病病原菌鉴定及部分杀菌剂的防效[J].湖南农业大学学报（自然科学版）,2025,51(4):48-53,6.基金项目
江西省自然科学基金项目(20232BAB215036) （20232BAB215036）
江西省蔬菜产业技术体系资助项目(JXARS-06) （JXARS-06）
江西师范大学研究生创新基金项目(YJS2023063) （YJS2023063）
