评估生物真菌杀菌剂和宿主抵抗力对Rhizoctonia 在Zoysiagrass中的大补丁
Bikash Ghimire1,2, Rolando Orellana3, Shukti R Chowdhury4
1Department of Plant Pathology, University of Georgia, Griffin Campus, Griffin, GA 30223, USA.
Pathogens (Basel, Switzerland)
|October 25, 2024
概括
这项研究表明,Bacillus subtilis QST713生物真菌杀菌剂有效地控制了草草中的Rhizoctonia大斑点病. 将这种生物杀菌剂与其他方法相结合,为合成杀菌剂提供了一个可持续的替代方案.
科学领域:
- 植物病理学 植物病理学
- 对微生物进行控制.
- 草皮草科学 草皮草科学
背景情况:
- 由Rhizoctonia solani AG2-2 LP引起的Rhizoctonia大补丁,降低了草草的质量.
- 合成杀菌剂是常见的,但昂贵,耐风险,对环境有害.
研究的目的:
- 评估生物杀菌剂和合成杀菌剂对R. solani. 的使用情况.
- 评估Rhizoctonia大补丁管理的综合喷雾计划.
- 确定抗病的动物草种类.
主要方法:
- 在体外测试中测试了生物杀剂,合成杀剂和对R. solani.的组合.
- 用Bacillus subtilis QST713和propiconazole喷雾程序在生长室和现场试验中进行了测试.
- 动物草基因型和繁殖系进行了抗药性选.
主要成果:
- 细菌QST713抑制了R.solani在体外100%的增长.
- 综合计划将疾病的严重程度降低了高达81% (生长室) 和71% (现场).
- 五种动物草基因型和两种繁殖系对R. solani.表现出耐药性.
结论:
- 细菌菌QST713单独或组合有效的管理Rhizoctonia大补丁.
- 结合生物真菌杀菌剂,耐药品种和化学控制的综合战略提供了可持续的草草疾病管理.
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