选择性杀虫剂对Bemisia tabaci (Hemiptera:Aleyrodidae) 两种一般性捕食者的直接和间接影响
Albertha J Parkins1, Arash Kheirodin1, Jermaine D Perier1
1Department of Entomology, University of Georgia, Tifton, GA, USA.
Journal of insect science (Online)
|November 20, 2024
概括
选择性杀虫剂对于综合性害虫管理 (IPM) 是至关重要的. 在这项研究中,兰利对掠食者生存和猎物消费产生了负面影响,而pyriproxyfen对有益昆虫的影响很小.
科学领域:
- 农业昆虫学 农业昆虫学
- 虫害管理 虫害管理 虫害管理
- 杀虫剂毒理学 杀虫剂毒理学
背景情况:
- 一般性关节动物捕食者对于农业生态系统的自然害虫抑制至关重要.
- 综合虫害管理 (IPM) 的成功依赖于与自然敌人相容的杀虫剂.
- 选择性杀虫剂为加强生物控制提供了一个有希望的策略.
研究的目的:
- 评价兰利和pyriproxyfen对捕食者生存率和捕食者有效性的影响.
- 评估这些杀虫剂与农业环境中关键自然敌人的兼容性.
- 为了了解杀虫剂对捕食者寻行为间接影响.
主要方法:
- 实验室实验与孤立的捕食者 (Hippodamia convergens,Geocoris punctipes) 和白 (Bemisia tabaci) 进行了实验.
- 实地试验使用用杀虫剂处理的棉花地块与白感染的盆栽植物.
- 使用捕食者排除和访问方法来量化白种群动态.
主要成果:
- 在实验室和现场环境中,pyriproxyfen对捕食者生存和捕食的影响是微不足道的.
- 在实验室条件下,兰利降低了捕食者生存率和猎物的消耗.
- 在实地试验中,兰利没有显著影响掠食者可访问的地块中的白种群,这表明掠食者活动减轻了影响.
结论:
- 氧是针对白的IPM计划的潜在安全选择,对关键捕食者产生最小的不良影响.
- 在实验室中对捕食者的cyantraniliprole的不良影响在现场条件下并未始终被观察到,这突显了现实世界生态系统相互作用的复杂性.
- 需要进一步的研究,以充分阐明草甘在一般性掠食者和整体害虫控制有效性的现场影响.
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