摘要
通过田间系统调查,了解了苜蓿蚜虫天敌种类和优势种群,并对苜蓿蚜虫与其优势种天敌龟纹瓢虫的田间消长规律进行了研究,显示了天敌龟纹瓢虫种群数量对苜蓿蚜虫具有明显跟随效应。
The natural enemies and dominant ones of alfalfa aphid were investigated in the alfalfa field.The population dynamics between the alfalfa aphid and its dominant natural enemy Propylaea japonica were investigated and understood as well.The natural enemy Propylaea japonica was showed obvious following effect after the prey alfalfa aphid.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2010年第4期51-52,共2页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
苜蓿蚜虫
龟纹瓢虫
种群动态
Alfalfa aphid
Propylaea japonica
population dynamics
