自然变化的温度对Mythimna separata (Walker) (Lepidoptera: Noctuidae) 的生长和发育以及营养指标的影响
Tongtong Liu1, Haonan Zhao1, Jiali Cao1
1Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan 030031, China.
Journal of economic entomology
|December 13, 2025
概括
一个主要的农业害虫Mythimna separata在几代人之间表现出温度依赖的发展. 了解这些模式有助于预测害虫疫情,保护粮食生产.
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
- 昆虫生态学 昆虫生态学
背景情况:
- Mythimna separata是中国的一个重要的迁移性害虫,威胁到谷物生产.
- 预测疫情的温度反应现有数据是有限的,特别是在第三代地区.
研究的目的:
- 在自然温度波动下研究Mythimna separata的发育特征.
- 为预测第三代发生地区的害虫爆发提供数据.
主要方法:
- 从2021年4月到10月观察了Mythimna separata的三个完整的世代.
- 将发育进展与自然温度变化相关联.
- 在不同温度下评估幼虫的生存率和饥饿耐受性.
主要成果:
- 发育进展与温度变化有显著的相关性.
- 第二代在7月份的高温期间发展最快 (48.2天).
- 最佳的发育持续时间发生在25°C左右,但幼虫的存活率下降.
- 第五阶级幼虫表现出强大的适应性,耐饥性高达281.4小时.
结论:
- 温度显著影响了Mythimna separata的发展和生存.
- 结果为预测第三代繁殖区害虫的发生提供了关键数据.
- 这项研究支持加强对粮食安全的害虫管理策略.
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