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在杂草生物控制中对受威胁和危植物进行非破坏性环境安全评估

Ikju Park^1,2, Mark Schwarzländer², Sanford D Eigenbrode²

¹Department of Entomology, University of California, Riverside, Riverside, California, United States.

|February 20, 2024

概括

评估危植物的非目标攻击风险对于生物控制安全至关重要. 植物线索可以非破坏性地预测生物控制剂,如虫Mogulones borraginis,是否会避免受威胁和危物种.

科学领域:

生态学和进化生物学.
保护生物学保护生物学
昆虫学昆虫学是一门学科.

背景情况:

生物控制剂的发布前环境安全评估对于保护联邦列出的受威胁和危 (T&E) 植物物种至关重要.
评估非目标攻击 (NTA) 风险往往受困于获得植物传播剂的困难,以及为测试同步植物和物质代体的困难.
要克服这些后勤挑战,需要使用非破坏性的方法来评估NTA风险.

研究的目的:

评估植物嗅觉和视觉线索的使用,以非破坏性地评估T&E植物物种对候选生物控制剂的吸引力.
为了确定种子食虫Mogulones borraginis是否是Cynoglossum officinale的生物控制候选物,对亲属T&E物种构成NTA风险.
分析挥发性有机化合物 (VOC),以了解宿主植物的歧视.

主要方法:

从四种T&E植物物种和一种与入侵性C. officinale.相似的罕见植物物种的开花枝收集了嗅觉和视觉线索.
使用修改的y管装置进行双选择生物测试,以测量虫对植物线索的行为反应 (偏好和搜索时间).
在61种挥发性有机化合物 (VOC) 上使用主要成分分析 (PCA) 来区分植物物种.

主要成果:

在嗅觉和视觉提示生物测试中,雌性Mogulones borraginis虫显著更喜欢入侵的Cynoglossum officinale,而不是所有测试的T&E植物物种.
与对照组相比,T&E植物物种的综合嗅觉和视觉线索驱逐了虫,这表明攻击的可能性很低.
通过PCA有效地根据VOC档案分离植物物种,支持行为生物试验的结果.

结论:

植物线索可以有效地用于对T&E物种的生物控制剂的非破坏性环境安全测试.
莫古洛内斯博拉吉尼斯对Cynoglossum officinale表现出强烈的宿主特异性,不太可能攻击同属的T&E植物物种.
了解前照明宿主选择行为和VOC有助于预测和确保杂草生物控制剂的安全性.

关键词:

生物控制生物控制生物控制是生物控制.在Cynoglossum officinale中使用.主机选择行为主机选择行为.猎犬的舌头是一种语言.莫古洛尼斯博拉吉尼斯 (Mogulones borraginis) 是一种葡萄酒.发布前风险评估发布前风险评估

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