自然存在的昆虫病原体在玉米-大豆旋转系统中对马拉德拉福莫斯科的生物控制潜力
Adrian Joseph Pekarcik1,2, Christopher G Taylor3, Amy Lynn Raudenbush2
1USDA-Agricultural Research Service, North Central Agricultural Research Laboratory, Brookings, SD, USA.
Pest management science
|April 23, 2025
概括
杀虫性线虫,Heterorhabditis bacteriophora和Steinernema carpocapsae在俄俄州的玉米田中普遍存在. 这些昆虫病原性线虫在实地试验中有效控制亚洲花园甲虫 (Maladera formosae).
科学领域:
- 农业昆虫学 农业昆虫学
- 遗体学 遗体学 是一个学科.
- 生物控制 生物控制
背景情况:
- 亚洲花园甲虫 (Maladera formosae) 是大湖地区玉米田的新兴害虫.
- 传统的杀虫剂对M. formosae无效.
- 昆虫病原性线虫在草系统中取得了成功,用于控制M. formosae.
研究的目的:
- 从有M. formosae历史的农田中分离和识别线虫物种.
- 评估孤立线虫对M. formosae幼虫的疗效.
主要方法:
- 在俄俄州北部的农业土壤中隔离了虫.
- 温室和户外微观宇宙试验,以评估虫感染和死亡率.
- 使用分子和形态学技术识别线虫物种.
主要成果:
- 孤立的Heterorhabditis bacteriophora和Steinernema carpocapsae,再加上一个Pristionchus sp. 这种植物.
- 在所有三种线虫物种中确认了M. formosae的感染性和死亡率.
- H. bacteriophora 和一个与 Pristionchus sp. 的组合. 在温室试验中显著减少了 grub 种群.
结论:
- 杀虫性线虫在受M. formosae.感染的玉米-大豆系统中广泛存在.
- 螺旋虫在田间作物中显示出作为有效的生物控制剂的潜力.
- 在户外微观宇宙研究中,虫成功过冬并保持有效性.
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