4种生物农药对党参根腐病菌的室内毒力测定

许彦; 曹剑; 刘露; 覃贵勇

doi:10.13718/j.cnki.zwys.2021.02.005

植物医学

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4种生物农药对党参根腐病菌的室内毒力测定

, , ,

许彦, 曹剑, 刘露, 等. 4种生物农药对党参根腐病菌的室内毒力测定[J]. 植物医学, 2021, (2): 18-22. doi: 10.13718/j.cnki.zwys.2021.02.005

引用本文:

许彦, 曹剑, 刘露, 等. 4种生物农药对党参根腐病菌的室内毒力测定[J]. 植物医学, 2021, (2): 18-22. doi: 10.13718/j.cnki.zwys.2021.02.005

XU Yan, CAO Jian, LIU Lu, et al. Toxicity of 4 kinds of Bio-pesticides to Pathogenic Fungi of Codonopsis pilosula Root Rot Disease[J]. PLANT HEALTH AND MEDICINE, 2021, (2): 18-22. doi: 10.13718/j.cnki.zwys.2021.02.005

Citation:

XU Yan, CAO Jian, LIU Lu, et al. Toxicity of 4 kinds of Bio-pesticides to Pathogenic Fungi of Codonopsis pilosula Root Rot Disease[J]. PLANT HEALTH AND MEDICINE, 2021, (2): 18-22. doi: 10.13718/j.cnki.zwys.2021.02.005

4种生物农药对党参根腐病菌的室内毒力测定

重庆三峡职业学院, 重庆万州 404155

详细信息

作者简介:
许彦,实验师,主要研究方向作物病虫害防治.E-mail:467686482@qq.com .

通讯作者: 覃贵勇, 主要从事与农业昆虫与害虫防治.250273246@qq.com

中图分类号: S482.7

Toxicity of 4 kinds of Bio-pesticides to Pathogenic Fungi of Codonopsis pilosula Root Rot Disease

Chongqing Three Gorges Polytechnic College, Wanzhou Chongqing 404155, China

摘要: 党参根腐病是一种严重的真菌类病害，直接导致党参大量减产，影响其经济价值.前期研究分离并鉴定出重庆市奉节县党参根腐病菌为腐皮镰刀菌（Fusarium solani）.基于此，本试验采用菌丝生长速率法测定了井冈霉素、四霉素、春雷霉素、多抗霉素等4种生物农药对编号为CQ-4和CQ-13的2个菌株的室内毒力.结果显示，4种生物源农药对CQ-4和CQ-13均表现出显著抑制作用，且呈现浓度依赖性.28%井冈霉素可溶粉剂对CQ-4抑制效果最强，EC₅₀为0.095 g/L，0.3%四霉素水剂次之；10%多抗霉素可湿性粉剂对CQ-13的抑制效果最强，EC₅₀为0.138 g/L，0.3%四霉素水剂次之.研究结果为党参根腐病的生物防治提供了参考依据.
- 党参根腐病 /
- 生物农药 /
- 杀菌剂 /
- 毒力测定
Abstract: Root rot of Codonopsis pilosulais a serious fungal disease, which can lead to yield reduction of the crop and affect its economic value. In order to provide reference for the control of this disease, the authors isolated the pathogen of root rot of C. pilosula and identified it as Fusarium solani in their previous work. In this experiment, the antifungal activities of 4 biological pesticides to 2 physiological racesof the pathogen(CQ-4 and CQ-13) were determined with flat plate assay.The results showed that all the 4 pesticides exhibited strong concentration-dependent antifungal activities against CQ-4 and CQ-13.The soluble powder of 28% jinggangmycin had the strongest inhibitory effect on CQ-4, with an EC₅₀ of 0.095 g/L, followed by the aqueous solution of 0.3% tetramycin. The water powder of 10% dobicamycin had the strongest inhibitory effect on CQ-13, with an EC₅₀ of 0.138 g/L, followed by the aqueous solution of 0.3% tetramycin.
- root rot of Codonopsis pilosula /
- biopesticide /
- fungicide /
- toxicity test .

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4种生物农药对党参根腐病菌的室内毒力测定

通讯作者: 覃贵勇, 主要从事与农业昆虫与害虫防治.250273246@qq.com

作者简介: 许彦,实验师,主要研究方向作物病虫害防治.E-mail:467686482@qq.com
重庆三峡职业学院, 重庆万州 404155

收稿日期: 2021-02-24

基金项目:

关键词:

摘要: 党参根腐病是一种严重的真菌类病害，直接导致党参大量减产，影响其经济价值.前期研究分离并鉴定出重庆市奉节县党参根腐病菌为腐皮镰刀菌（Fusarium solani）.基于此，本试验采用菌丝生长速率法测定了井冈霉素、四霉素、春雷霉素、多抗霉素等4种生物农药对编号为CQ-4和CQ-13的2个菌株的室内毒力.结果显示，4种生物源农药对CQ-4和CQ-13均表现出显著抑制作用，且呈现浓度依赖性.28%井冈霉素可溶粉剂对CQ-4抑制效果最强，EC₅₀为0.095 g/L，0.3%四霉素水剂次之；10%多抗霉素可湿性粉剂对CQ-13的抑制效果最强，EC₅₀为0.138 g/L，0.3%四霉素水剂次之.研究结果为党参根腐病的生物防治提供了参考依据.

English Abstract

Toxicity of 4 kinds of Bio-pesticides to Pathogenic Fungi of Codonopsis pilosula Root Rot Disease

Corresponding author: QIN Gui-yong, 主要从事与农业昆虫与害虫防治.250273246@qq.com

重庆三峡职业学院, 重庆万州 404155

Received Date: 2021-02-24

Keywords:

Abstract: Root rot of Codonopsis pilosulais a serious fungal disease, which can lead to yield reduction of the crop and affect its economic value. In order to provide reference for the control of this disease, the authors isolated the pathogen of root rot of C. pilosula and identified it as Fusarium solani in their previous work. In this experiment, the antifungal activities of 4 biological pesticides to 2 physiological racesof the pathogen(CQ-4 and CQ-13) were determined with flat plate assay.The results showed that all the 4 pesticides exhibited strong concentration-dependent antifungal activities against CQ-4 and CQ-13.The soluble powder of 28% jinggangmycin had the strongest inhibitory effect on CQ-4, with an EC₅₀ of 0.095 g/L, followed by the aqueous solution of 0.3% tetramycin. The water powder of 10% dobicamycin had the strongest inhibitory effect on CQ-13, with an EC₅₀ of 0.138 g/L, followed by the aqueous solution of 0.3% tetramycin.