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植物和合成杀虫剂对多鲁带的选择性:没有简单的答案
Emile Dayara Rabelo Santana1, Leonardo Vinicius Thiesen2, Mariana Yamada2
1Dept of Entomology and Acarology, Univ of São Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, São Paulo, Brazil. emiledayara23@gmail.com.
Neotropical entomology
|June 17, 2025
概括
与合成选择相比,植物杀虫剂对自然敌人Doru luteipes的毒性较低,用于控制秋季军虫. 这凸显了植物农药在可持续害虫管理中的选择性.
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
- 生物控制 生物控制
背景情况:
- 可持续农业需要整合化学和生物害虫防治方法.
- 选择性杀虫剂对于在综合性害虫管理 (IPM) 计划中保护自然敌人至关重要.
- 秋季军虫 (Spodoptera frugiperda) 是一个重要的农业害虫,需要有效的控制策略.
研究的目的:
- 评估植物和合成杀虫剂对自然敌人Doru luteipes的致命和次致命影响.
- 评估D. luteipes对死亡率,行为和跨代参数的影响.
- 确定选择性杀虫剂,尽量减少对自然敌人的伤害,以实现可持续的秋季军虫控制.
主要方法:
- 进行了生物测试,以确定暴露于各种杀虫剂的D. luteipes幼虫和成人的死亡率.
- 在接受治疗的D. luteipes中评估了行为变化,包括捕食能力和步行速度.
- 研究的跨代效应,如成年人长寿,前置期,幼虫活力和生命表参数 (rm, λ).
主要成果:
- 植物性杀虫剂 (乙原素,类) 在D. luteipes. nymphs.中导致<30%的死亡率.
- 甲 (合成) 导致>80%的死亡率,并显著降低了掠食和行走速度.
- 植物杀虫剂显示出多种次致命效应,包括减少成年人寿命,但总体而言,影响小于chlorantraniliprole.
结论:
- 植物性杀虫剂对天然敌人D. luteipes的危害水平较低,而与合成兰利烯相比.
- 这些发现强调了植物杀虫剂的选择性以及保护自然敌人的特定合成选项.
- 结果支持选择性植物杀虫剂在IPM策略中用于秋季军虫管理的使用.
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