中国南方果树2025，Vol.54Issue(3)：37-41,47,6.DOI:10.13938/j.issn.1007-1431.20250066
32种杀菌剂对柑橘间座壳菌2个菌株的毒力评价
Evaluation of the toxicity of 32 fungicides to two strains of Diaporthe citri
摘要
Abstract
The citrus scab disease is primarily caused by Diaporthe citri.In order to identify effective fungicides for Diaporthe citri,the mycelial growth rate method was used to determine the inhibitory effects of 32 fungicides on the LZK3 strain isolated from Eureka lemon in Anyue,Sichuan and the GISP strain isolated from Long an pomelo in Guang'an,Sichuan.The results showed that the EC50 values of 25％ pyraclostrobin SC(Yingran),25％ pyraclostrobin SC(Tiansheng),400 g/L chlorothalonil-pyra-clostrobin SC,43％ fludioxonil-triflumizole SC,30％ difenoconazole-pyraclostrobin SC,29％ isopyrazam-azoxystrobin SC,20％ enestroburin-tebuconazole SC for these two strains were all less than 0.1 mg/L,indicating strong inhibitory effects.The EC50 values of 80％ mancozeb WP(Daisen M-45),80％ mancozeb WP(Shandesheng),78％ propineb-mancozeb WP,70％ mancoz-eb WG,and 70％ propiconazole WP for the two strains was larger than 10 mg/L,indicating weak inhibitory effects.There were certain differences in the inhibitory activity of the same fungicide to different strains,with the relative toxicity ratios ranging from 1.01 to 5,124.4.The findings of this study could provide assistant in the selection of fungicides for the field control of Diaporthe citri and the monitoring of changes of pathogen resistance.关键词
柑橘砂皮病/柑橘间座壳菌/杀菌剂/毒力/抑菌活性Key words
citrus melanose/Diaporthe citri/fungicides/toxicity/antibacterial activity引用本文复制引用
龙思羽,马静华,李白雪,肖平安,刘蝶,胡军华,王雪峰..32种杀菌剂对柑橘间座壳菌2个菌株的毒力评价[J].中国南方果树,2025,54(3):37-41,47,6.基金项目
四川省资阳市"揭榜挠帅"项目((Zykjjsc20-zdyf-2023-02)资助. （(Zykjjsc20-zdyf-2023-02）
