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杀虫剂混合物减少了掠食性虫虫的皮雷类抗性增强的选择性
Maria Raquel Sousa Soares1, Natalia Carolina Bermúdez1, Rogério Lira1
1Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, 52171-900, Brazil.
Ecotoxicology (London, England)
|May 3, 2025
概括
含有尼可类药物的杀虫剂混合物会伤害耐药的虫Eriopis connexa,从而抵消其天然的害虫防治效益. 与兰利醇或硫亚结合的药物显示,虫的生存和繁殖情况更好.
科学领域:
- 农业昆虫学 农业昆虫学
- 昆虫毒理学 昆虫毒理学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 杀虫剂混合物提供广泛的害虫控制和耐药性管理.
- 然而,混合物可能会对有益的昆虫产生负面影响,比如自然敌人.
研究的目的:
- 评估杀虫剂混合物对雌甲虫Eriopis connexa的生存和繁殖的影响,该雌甲虫对λ-cyhalothrin有耐药性.
- 为了确定混合物中的尼丁类药物是否会抵消女虫的抵抗力和生物控制潜力.
主要方法:
- 耐药Eriopis connexa (EcViR) 的幼虫和成体被暴露在单个和混合杀虫剂配方中.
- 评估了生存,繁殖和度-死亡率曲线.
- 组合指数用于评估混合物毒性.
主要成果:
- 混合物中的尼奥尼科丁类药物 (thiamethoxam,dinotefuran) 对EcViR具有高度毒性,超过了其对λ-cyhalothrin的耐药性.
- 结合 λ-cyhalothrin 与 chlorantraniliprole 或 sulfoxaflor 允许超过 80% 的生存和繁殖.
- 添加neonicotinoids到λ-cyhalothrin或兰特兰尼利普罗尔对女甲虫有害.
结论:
- 杀虫剂混合物中的尼奥尼科丁类药物消除了E. connexa对λ-cyhalothrin耐药性的选择性优势.
- 这降低了虫作为增强生物控制剂的有效性.
- 精心选择杀虫剂混合物成分对于保护有益昆虫种群至关重要.
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