间接的植物防护可以在中提供经济上重要的害虫抑制
Emily M Russavage1,2, Anjel M Helms1, Morgan N Thompson1
1Department of Entomology, Texas A&M University, College Station, TX, USA.
Pest management science
|April 9, 2025
概括
选择具有间接防御特征的 Sorghum 品种可以增强虫的生物控制. 这种方法通过自然招募有益的昆虫来改善作物保护,减少对农药的需求.
科学领域:
- 农业昆虫学 农业昆虫学
- 植物与昆虫的相互作用
- 生物控制 生物控制
背景情况:
- 优化对昆虫害虫的生物控制包括选择具有间接防御特征的作物品种,例如草食动物诱导的植物挥发物,这些挥发物会吸引自然敌人.
- 之前的实验室测试表明,当种ATx3409/RTx436被虫感染时,它吸引了更多的自然敌人,并且比其他种类释放出更多的吸引剂.
研究的目的:
- 实地验证中间接植物防御的有效性,用于生物虫控制.
- 评估实验室发现自然敌人吸引力和现场水平害虫抑制之间的相关性.
- 量化自然敌对对不同种类虫密度的影响.
主要方法:
- 在整个生长季节中,用虫来侵袭农作物,并监测天然敌人和虫密度.
- 使用野外来排除自然敌人,并确定它们对虫种群抑制的影响.
- 在不同种中比较虫密度和自然敌人丰富度.
主要成果:
- 在2022年,与其他品种相比,种ATx3409/RTx436的有益昆虫密度 (雌甲虫,蕾丝翅,悬浮,寄生虫) 显著更高.
- 在实地子实验中,自然敌人在一周内将虫密度降低了高达83%.
- 在2022年的整个生长季节,ATx3409/RTx436仍然低于虫感染的经济值,这表明不需要使用农药.
结论:
- 间接的植物防御有效地增强了生物控制,并提供了经济上相关的虫害的抑制.
- 基于间接防御特征的种类选择是一种可行的策略,可以改善作物保护和培育害虫耐药性.
- 实验室分析可以准确地预测在现场条件下自然敌人招募的有效性.
关键词:
梅拉纳菲斯·索尔吉·西奥巴尔德·西奥巴尔德二色L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.L.生物控制 生物控制草食动物诱导的植物挥发物.Sorghum 虫是一种虫.更多相关视频
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