摘要
异色瓢虫［Ｌｅｉｓａｘｙｒｉｄｉｓ（Ｐａｌａｓ）］对烟蚜［Ｍｙｚｕｓｐｅｒｓｉｃａｅ（Ｓｕｌｚｅｒ）］有较强的控制作用，其捕食量随着猎物密度的增加而增加，功能反应符合Ｈｏｌｉｎｇ－Ⅱ型方程；并得出成虫及四龄幼虫的功能反应数学模型；异色瓢虫个体间干扰作用也较强，其捕食率随自身密度的增加而降低。
Leis axyridis(Pallas) is dominant in controlling Myzus persicae(Sulzer).The number of consuming per day is increased as the density of aphids increased.The functional response can be described by the models of Holling Ⅱ.The mathematical models of the functional response for adults and four instared larvae are as follows:Na=0 7290Nt/(1+0 7290×0 005214Nt),Na=0 8252Nt/(1+0 8252×0 002342Nt).The disturbing of Leis axyridis(Pallas) themselves has great effect on the predaceous rate which is decreased as the density of Leis axyridis(Pallas)turns high.
出处
《中国烟草科学》
CSCD
1998年第4期15-17,共3页
Chinese Tobacco Science
