应用后的Cordyceps javanica对Bemisia tabaci的现场持久性和有效性
Shaohui Wu1, Michael D Toews1, Robert W Behle2
1Department of Entomology, University of Georgia, 2360 Rainwater Road, Tifton, GA 31793, USA.
Journal of fungi (Basel, Switzerland)
|August 25, 2023
概括
菌根Cordyceps javanica对白Bemisia tabaci表现出有限的野外持久性,即使使用JMS油. 为了有效的生物控制,需要改进的输送方法.
科学领域:
- 农业昆虫学 农业昆虫学
- 植物病理学 植物病理学
- 生物控制 生物控制
背景情况:
- 在实验室环境中,Cordyceps javanica Wf GA17表现出优越的温度耐受性和对贝米西亚烟草的毒性.
- 进行了一项为期两年的实地研究,以评估C. javanica菌株对棉花和蔬菜作物的B. tabaci的疗效.
研究的目的:
- 为了比较C. javanica Wf GA17和一个商业菌株 (Apopka97) 对Bemisia tabaci的野外持久性和有效性.
- 评估JMS油作为辅助剂的影响,以提高真菌治疗的有效性和持续性.
主要方法:
- 现场应用C. javanica菌株 (Wf GA17和Apopka97) 作为单独或与JMS风油结合使用的孔或芽.
- 对白种群的监测和真菌子生存能力和持续时间的评估.
- 评估未成熟的死亡率和整体的白抑制.
主要成果:
- 单独使用真菌治疗并没有有效地抑制白种群.
- 单独使用JMS油显著降低了白数量,并导致死亡率.
- 虽然Wf GA17芽子+JMS显示出一些增强的控制,但疗效是短暂的;超过90%的子在24小时内失去了生存能力.
- 对于这两种真菌菌株来说,Conidia表现出比芽子更好的持久性.
结论:
- 科尔迪塞普斯·贾瓦尼卡 (Cordyceps javanica) 对贝米西亚烟草 (Bemisia tabaci) 的野外持久性和有效性有限.
- 杰姆斯油有助于抑制白,但真菌的持久性仍然是一个挑战.
- 改进的输送方法和配方的开发对于提高C. javanica作为生物控制剂的有效性至关重要.
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