摘要
通过对异色瓢虫(Leisaxyridis(Pallas))成虫经24小时饥饿处理后,对不同密度下的大豆蚜(AphisglycinesMatsumura)和玉米蚜(Rhojlosighummaidis)捕食量变化的比较分析,认为异色瓢虫捕食这两种蚜虫功能反应符合Ⅱ型反应,均可用Holling圆盘方程拟合,其方程式为:Na玉米=0.6792N/(1+0.0022N)、Na大豆=0.9463N/(1+0.0023N),同时,经比较异色瓢虫对大豆蚜和玉米蚜的功能参数,发现异色瓢虫对大豆蚜的控制能力明显强于玉米蚜。
By the mean. of hungry treatment to Leis axyridis for twenty-four hours,we analyzed the number variety of two Aphis in different density, and concludedthat the fitted model was Holling equation and the control ability of letsaxyrids to Aphis glycines Matsumura was stronger than that of Leis axyridis toRhojalosighum maides.
出处
《黑龙江八一农垦大学学报》
1999年第1期26-28,共3页
journal of heilongjiang bayi agricultural university
关键词
瓢虫
异色瓢虫
大豆蚜
玉米蚜
捕食作用
Leis axyridis
Aphis glycines Matsumura
Rhojalosighum maidis
Predicous function