一种新的床上干燥液体Bacillus thuringiensis kurstaki配方的生物活性和物理研究
Rayan Nasreddine1, Gül Ayyildiz2, Tayssir El Hammar3
1Julius Kühn Institute (JKI) - Federal Research Centre for Cultivated Plants, Institute for Biological Control, Dossenheim, Germany; Saint-Joseph University of Beirut, UR- EGP, Functional Genomic and Proteomic Laboratory, Faculty of Sciences, Mar Roukos- Dekwaneh, B.P. 17-5208, Mar Mikhael, Beirut 1104 2020, Lebanon.
Journal of invertebrate pathology
|January 23, 2026
概括
新的液体床干巴西路斯·图林吉尼斯·库尔斯塔基 (Btk) 配方,Lip和Blb1,为果害虫控制提供了一个可持续的替代方案. 这些环保配方在现场试验中显示出对Phyllocnistis citrella的快速有效性.
科学领域:
- 农业昆虫学 农业昆虫学
- 微生物害虫控制 微生物害虫控制
- 配方科学科学 配方科学
背景情况:
- 诸如Phyllocnistis citrella和Prays citri等类害虫会造成重大破坏,需要有效和环保的控制方法.
- 细菌 thuringiensis kurstaki (Btk) 是一种用于昆虫控制的微生物剂,但配方是其有效性的关键.
研究的目的:
- 开发和评估新的液体床干Btk配方 (Lip和Blb1),用于类植物害虫控制.
- 与商业标准相比,评估这些新配方的物理化学性质,杀虫剂有效性和现场性能.
主要方法:
- 在小麦上进行Btk菌株 (Lip, Blb1) 的浸泡发酵,然后进行液床干燥,以制造缩颗粒.
- 干燥配方和悬浮剂的表征,包括子/蛋白质含量和颗粒大小分布.
- 对P. citrella,P. citri和Spodoptera frugiperda进行实验室生物测试,对P. citrella进行实地试验.
主要成果:
- 配方Lip和Blb1呈现出高子和蛋白质含量,具有理想的颗粒大小分布.
- 实验室测试显示对P. citrella的疗效相似,而现场试验显示,与Delfin®相比,Lip和Blb1的死亡率明显更快 (LT50).
- Btk Lip和Blb1配方被证明是可持续和有效的替代品,提供比商业Btk产品更快的害虫死亡率.
结论:
- 在小麦上局部分离的Btk菌株的液体床干配方在物理化学上强大,并显示出高的杀虫效果.
- 这些新的Btk配方为控制主要果害虫提供了一个有希望的,可持续的替代方案,在现场条件下表现优于商业产品.
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