生物灾害科学2025，Vol.48Issue(4)：562-567,6.DOI:10.3969/j.issn.2095-3704.2025.04.70
3种植物源制剂对烟草黑胫病菌的室内毒力测定
Laboratory toxicity test of 3 plant-derived preparations against tobacco black shank pathogen
摘要
Abstract
[Objective]This study was conducted to screen safe and effective botanical fungicides for controlling tobacco black shank diseases.[Method]The bacteriostatic activity of three plant-derived preparations against tobacco black shank was determined by the mycelium growth rate method.[Result]The results showed that,compared with the clear water control(T14),the mycelial growth inhibition rates of five-fold extracts of Chinese herbal medicines such as Cortex Phellodendri,Radix Astragali and Rhizoma Coptidis ranged from 36.33%to 55.45%,with significant differences.The colony diameters of 50-fold solutions of T13,T1,T3,T2 and T14 were between 1.93 cm and 6.20 cm in 3 days,and the inhibition rates of mycelium growth were between 16.33%and in 5 days among which there was a significant difference between T13 and T2 treatments.[Conclusion]The extracts of Cortex Phellodendri,Radix Astragali and Rhizoma Coptidis,as well as the plant-derived preparations prepared by their synergists and stabilizers,have certain inhibitory effects on the pathogen of black shank,among which the chemical agents(72%wettable powder of manganese zinc methoxide)and plant-derived preparations(Rhizoma Coptidis 93%+H201 methyl silicone oil 6%+epichlorohydrin 1%)have obvious antibacterial effects.关键词
烟草/黑胫病/植物源制剂/效果Key words
tobacco/Phytophthora parasitica var/plant-derived preparations/effect分类
农业科技引用本文复制引用
巢进,周佳民,杨日华,侯金权,卢朝军,徐瑞,张鹏,黄琪,王星宇..3种植物源制剂对烟草黑胫病菌的室内毒力测定[J].生物灾害科学,2025,48(4):562-567,6.基金项目
湖南省烟草公司湘西自治州公司科技项目(XX2024-2026Aa02)、湖南省烟草公司永州市公司科技项目(YZ2024KJ01)、湖南省重点研发计划项目(2022NK2008)和湖南省科技特派员服务乡村振兴项目(2023NK4160) （XX2024-2026Aa02）
