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通过三种细菌物种对生虫Phyllocoptruta oleivora进行生物控制

Mahmoud M Al-Azzazy¹, Saleh S Alhewairini², Medhat Rehan³

¹Department of Plant Protection, College of Agriculture and Food, Qassim University, P.O. Box 6622, 51452, Buraydah, Saudi Arabia. m.elazzazy@qu.edu.sa.

Scientific reports

|October 28, 2025

概括

这项研究发现,Streptomyces thinghirensis菌株HM3和Streptomyces三色菌株HM10有效控制生 mite (Phyllocoptruta oleivora),对有益的掠食性虫的影响最小. 这些细菌为果害虫管理提供了一个有希望的生物控制替代方案.

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
生物技术是生物技术.

背景情况:

生甲虫 (Phyllocoptruta oleivora) 是湿地区的重要害虫,造成经济损失.
化学虫杀虫剂对非目标生物,环境构成风险,并导致耐药性.
越来越需要有效和可持续的生物控制替代品.

研究的目的:

评估三种细菌物种 (Streptomyces thinghirensis HM3,Streptomyces tricolor HM10,Bacillus subtilis E5) 对Phyllocoptruta oleivora的疗效. 这三种细菌物种的疗效包括:
评估这些细菌对捕食虫Amblyseius swirskii的影响.
探索潜在的作用机制,包括杀卵效应和基因组分析.

主要方法:

进行了实验室和实地实验以确定虫死亡率.
对掠食性虫Amblyseius swirskii进行了毒性测试.
通过监测蛋化率来评估杀性活性.
对S. thinghirensis HM3进行了基因组分析,以确定相关的基因集群.

主要成果:

在实验室条件下,Streptomyces thinghirensis HM3表现出最高的疗效,在实验室条件下达到89.26%的P. oleivora死亡率.
此外,Streptomyces tricolor HM10也表现出显著的杀虫活性,死亡率高达84.90%.
细菌细菌E5表现出较低的疗效 (72.60%的死亡率).
与P. oleivora. 相比,所有测试的细菌物种在掠食性虫A. swirskii中显示较低的校正死亡率.
S. thinghirensis HM3和S. tricolor HM10表现出杀卵活性,抑制了超过63%的卵化.

结论:

菌株Streptomyces thinghirensis HM3和Streptomyces tricolor HM10是有效的生物控制剂,可以对生虫进行防治.
这些细菌物种对有益的捕食虫A. swirskii. 的安全性表现良好.
这些发现表明,一种新的方法来管理P. oleivora种群,可能涉及S. thinghirensis HM3.3产生的动因母素D.

关键词:

这是一只野兽,Amblyseius swirskii.这种细菌是 Bacillus subtilis.这种类型是Streptomyces thinghirensis.这种类型是Streptomyces tricolor.生物控制是生物控制.可持续发展可持续性可持续性

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