福建林业科技2025，Vol.52Issue(3)：39-45,7.DOI:10.13428/j.cnki.fjlk.2025.03.005
福建省杉木赤枯病病原菌鉴定及防治药剂筛选
Identification of the Pathogens Causing Cunninghamia lanceolata Copper Blight in Fujian Province and Screening of Fungicides
摘要
Abstract
To identify the copper blight pathogen of Chinese fir in Fujian Province and identify efficient fungicides,we collected sam-ples of copper blight from four regions in eastern,southern,western and northern Fujian.The samples were then isolated,and the pathogenic strains were identified based on morphological characteristics and molecular biology techniques.Additionally,the inhibito-ry effects of carbendazim,tebuconazole,and flusilazole on the red rot pathogen were assessed using the mycelial growth rate meth-od.And the inhibitory effects of three commonly used fungicides on copper blight pathogen were determined using the mycelial growth rate method.The results showed that four species of Pestalotiopsis were collected,including Pestalotiopsis microspora,Pestalotiopsis theae,Pestalotiopsis cocculi and Pestalotiopsis oxyanthi.Among them,P.microspora and P.theae were highly pathogenic and had the widest distribution areas.Toxicity tests of fungicides indicated that carbendazim was the most effective in inhibiting the mycelial growth of Pestalotiopsis species,followed by difenoconazole and iprodione,with EC50 values of 0.19 μg·mL-1,10.42 μg·mL-1 and 20.99 μg·mL-1.The study showed that P.microspora and P.theae were the primary pathogens responsible for copper blight in Fu-jian area,and that carbendazim might have a better application prospect in the control of copper blight.关键词
杉木/赤枯病/拟盘多毛孢/杀菌剂Key words
Chinese fir/copper blight/Pestalotiopsis/fungicides分类
林学引用本文复制引用
詹振亮,陈春莉,徐强,张清华..福建省杉木赤枯病病原菌鉴定及防治药剂筛选[J].福建林业科技,2025,52(3):39-45,7.基金项目
南平市自然科学基金联合项目(N2023J012) （N2023J012）
福建省林业科技项目(2023FKJ24) （2023FKJ24）
