评估三种类动物在Myzus persicae (苏尔泽) 上的掠食动态:一个功能响应视角
Chander Singh1, Subhash Chander Verma1, Prem Lal Sharma1
1Department of Entomology, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, HP, India.
Bulletin of entomological research
|June 9, 2025
概括
与其他两种女虫物种相比,Scymnus posticalis对Myzus persicae虫的捕食效率更高. 这一发现凸显了S. posticalis作为一种有前途的生物控制剂M. persicae.
科学领域:
- 生态学和生物控制
- 昆虫学 昆虫学是一门学科.
- 捕食者和猎物的动力学
背景情况:
- 捕食者的功能反应对于评估它们在生物控制中的有效性至关重要.
- 虫甲虫是虫的重要自然敌人.
- Myzus persicae 是一个重要的农业害虫.
研究的目的:
- 为了研究和比较三种虫类捕食者的功能反应:Scymnus posticalis,Platynaspis saundersi和Pharoscymnus horni.
- 为了评估它们的捕食效率与不同密度的 Myzus persicae.的捕食效率.
- 为了确定最有效的捕食者对M. persicae.生物控制.
主要方法:
- 捕食试验是在受控的实验室条件下进行的 (25 ± 1°C,70 ± 5% RH,14L:10D光周期).
- 成年虫捕食者暴露在不同密度的Myzus persicae虫中.
- 使用后勤回归分析来确定功能反应类型和参数 (攻击率"a",处理时间"Th",最大掠食率"K").
主要成果:
- 这三种捕食物种都表现出II型功能反应.
- 波虫表现出最高的掠食效率,其特点是攻击率最高 (a = 0.0994 h−1),处理时间最短 (Th = 0.5016 h),理论掠食率最高 (K = 48.76 虫).
- 普拉蒂纳斯皮斯·桑德里西和法罗西姆努斯·霍尼的掠食性参数较低,这表明与S. posticalis相比,它们的效率较低.
结论:
- 在对Myzus persicae进行测试的三种物种中,Scymnus posticalis被确定为最有效的捕食者.
- 这些发现强烈支持S. posticalis作为一个有希望的候选人对M. persicae的生物控制.
- 需要进一步的现场验证,以确认S. posticalis在现实农业环境中的有效性.
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