数字农科院2.0

番茄潜叶蛾原产地潜叶蛾伲姬小蜂对入侵地 4 种非靶标昆虫的寄主专一性风险评价

文献类型: 中文期刊

关键词: 番茄潜叶蛾;;潜叶蛾伲姬小蜂;;非靶标风险;;寄主专一性;;风险评估

期刊名称:中国生物防治学报

ISSN: 2095-039X

年卷期: 2025 年

页码:

收录情况: 北大核心(2023版) ; ; CSCD(2025-2026年度) ; ; 科技核心(2024版) ; ; 农林核心(2024版)

摘要: 番茄潜叶蛾已成为我国南北方番茄田的主要害虫,目前已在20多个省级区域发生。潜叶蛾伲姬小蜂为寄主取食型寄生蜂,广泛分布于南美洲、北美洲和欧洲,是番茄潜叶蛾的专性寄生蜂,于2019年引入我国。为了防止新的入侵事件发生,本研究以番茄田常见的4种非靶标种昆虫/害虫为测试对象,在室内非选择条件下开展潜叶蛾伲姬小蜂的寄主专一性风险评价研究。结果表明,潜叶蛾伲姬小蜂可以取食和叮蛰美洲斑潜蝇2龄幼虫和斜纹夜蛾1龄幼虫,48 h总致死数分别为2.50头和1.20头,总致死率分别为12.50%和6.00%;但是,潜叶蛾伲姬小蜂对二者均不具有产卵寄生行为。并且,该种寄生蜂对新近入侵我国的草地贪夜蛾1龄和2龄幼虫、以及瓜蚜成虫不具有任何致死行为(包括寄生、取食、叮蛰),全部表现为拒绝。进一步对产卵寄生风险指数(RI)和寄主专一性综合风险指数(CRI)进行计算分析,显示,潜叶蛾伲姬小蜂对4种非靶标种昆虫的产卵寄生风险指数RI值均为0,寄主专一性综合风险指数CRI值亦均为0;表明,潜叶蛾伲姬小蜂对上述4种非靶标种昆虫均属0风险,可作为番茄潜叶蛾的安全高效生防作用物。研究结果对番茄潜叶蛾综合治理中可持续利用和规范释放潜叶蛾伲姬小蜂提供了科学指导。

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