种群动态和营养指数Spodoptera frugiperda (Lepidoptera: Noctuidae) 在三个作物物种上养
Kifle Gebreegziabiher Gebretsadik1,2,3, Xiangyong Li1, Yanqiong Yin1
1Key Laboratory of Green Prevention and Control of Agricultural Transboundary Pests of Yunnan Province, Agricultural Environment and Resource Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China.
Life (Basel, Switzerland)
|January 8, 2025
概括
秋季军虫 (FAW) 感染中国的玉米,甘和. 虽然玉米最能支持FAW,但甘和能够生存和传播,因此需要加强害虫监测.
科学领域:
- 农业昆虫学 农业昆虫学
- 侵入性物种 生态学 侵袭性物种 生态学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 秋季军虫 (FAW),Spodoptera frugiperda,是一种入侵性害虫,自2019年以来在中国迅速蔓延.
- 虽然玉米是已知的宿主,但甘和对中国FAW人口动态的影响仍未得到充分研究.
研究的目的:
- 调查不同宿主植物 (玉米,甘,) 对中国秋军虫生命表参数和种群增长的影响.
- 评估甘和作为FAW在非生长季节生存和繁殖的替代宿主是否适合.
主要方法:
- 在玉米,甘和种植时,对FAW发育和生命表参数的比较研究.
- 分析关键指标,包括成人前发育时间,生殖期,存活率,生育率和人口增长参数.
- 评估料指数 (消费,消化能力) 和营养指数 (转化效率,生长率).
主要成果:
- 与玉米相比,FAW在甘和糖果上表现出明显更长的成人前期,成人前期和总前期.
- 较低的存活率,幼体重,生育能力和女性与男性的比例在甘和中被观察到.
- FAW显示人口增长和生殖率下降,甘和的生长时间更长,尽管这些作物仍然支持发展和传播.
结论:
- 玉米是中国FAW最有利的宿主,但甘和可以维持害虫,特别是在非生长季节.
- 甘和小麦对FAW的持续和传播构成风险,突出显示需要综合性害虫防治策略.
- 加强FAW对甘和的监测和预警系统对于减轻其对主要作物的影响至关重要.
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