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Elizabeth K Rowen^1,2, Kirsten Ann Pearsons¹, Richard G Smith³

¹Department of Entomology, The Pennsylvania State University, University Park, PA, United States of America.

|January 17, 2025

概括

预防性农药种子处理可能会损害昆虫对杂草种子的生物控制. 避免杀虫剂和使用覆盖作物可能有助于管理玉米和大豆系统中的抗除草药杂草.

科学领域:

农业科学农业科学
生态生态学生态生态学
昆虫学昆虫学是一门学科.

背景情况:

在玉米和大豆生产中,预防性农药种子处理 (PPM),包括杀菌剂和新类杀虫剂,是常见的.
虽然用于害虫控制,但PPM可能会对昆虫介导的杂草种子的生物控制产生负面影响.

研究的目的:

调查PPM,综合性害虫管理 (IPM) 和无害虫管理 (NPM) 对杂草种子掠食和生物质的影响.
评估草地作物是否可以减轻化学害虫管理对生态系统服务的负面影响.

主要方法:

在美国宾夕法尼亚州,两次为期三年的玉米-大豆轮换.
实验设计比较PPM,IPM和NPM,与草地覆盖作物的存在或不存在交叉.
测量包括杂草种子银行,杂草生物质,昆虫活动密度和杂草种子掠食.

主要成果:

覆盖作物降低了黑甲虫活动,但并没有持续影响杂草种子掠食.
害虫管理和覆盖作物处理对杂草种子库和生物质产生了不一致的影响.
在没有覆盖作物的情况下,杀虫剂的使用增加了耐草甘海 (Erigeron canadensis L.) 的生物量.

结论:

减少杀虫剂的使用对于管理抗除草药杂草至关重要.
种植覆盖作物和/或避免杀虫剂可以帮助对抗农业系统中的有问题的杂草.

关键词:

覆盖作物覆盖作物综合性害虫防治综合性害虫防治尼奥尼科蒂诺伊德种子处理方法杂草种子的掠夺性捕食杂草杂草杂草杂草

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