植物保护2026，Vol.52Issue(2)：212-217,224,7.DOI:10.16688/j.zwbh.2025172
印度榕白绢病病原菌的分离鉴定及室内药剂筛选
Isolation and identification of the pathogen causing southern blight in Ficus elastica and indoor fungicide screening
摘要
Abstract
To identify the pathogenic fungi responsible for southern blight in Ficus elastica and to identify suitable control agents,the pathogen was isolated and identified using a combination of morphological and molecular biological methods,and fungicides were screened in vitro using the toxic medium method.Based on pathogenicity tests,morphological observations and rDNA-ITS sequence homology analysis,the pathogen causing the southern blight in Ficus elastica was identified as Agroathelia rolfsii.The results of indoor fungicide screening showed that difenoconazole,fludioxonil,and pyraclostrobin exhibited the strongest inhibitory effects against the tested strain,with median effective concentration(EC50)values of 0.07,0.08 μg/mL and 0.15 μg/mL,respectively three days after treatment.This was followed by azoxystrobin,picoxystrobin,and prochloraz,with EC50 values of 2.09,3.96 μg/mL and 15.72 μg/mL,respectively.Carbendazim showed the lowest inhibitory effect,with an EC50 value of 604.04 μg/mL.This study confirmed that A.rolfsii is the pathogen for southern blight in Ficus elastica,and that difenoconazole,fludioxonil,and pyraclostrobin have strong inhibitory effects against this pathogen and can be recommended as effective control agents.关键词
印度榕白绢病/病原菌鉴定/Agroathelia rolfsii/杀菌剂Key words
southern blight in Ficus elastica/pathogen identification/Agroathelia rolfsii/fungicides分类
农业科技引用本文复制引用
莫新珍,宋自玉,唐清凯,张志祥,程东美..印度榕白绢病病原菌的分离鉴定及室内药剂筛选[J].植物保护,2026,52(2):212-217,224,7.基金项目
广东省农业农村厅乡村振兴战略专项(2023KJ133) （2023KJ133）
