摘要
在室内18～25℃条件下,七星瓢虫幼虫及雌成虫的捕食效应均为HollingⅡ型.七星瓢虫各龄幼虫对棉蚜的最大日捕食量为:一龄12.24头,二龄32.98头,三龄133.33头,四龄300.30头;温度与功能反应参数关系如下:α=-0.9301+0.1584T-0.002954T^2,Th=8.135×10^(-3)T+4.324×10^(-4)T+7.78×10^(-6)T^2;不同密度棉蚜和不同种类蚜虫对七星瓢虫的生长发育有显著影响。
Functional response of larvae and adult of Coccinella septempunctatato aphids (Aphis gossypii Hyaloptera amygdali) and effect of the aphids (Aphis pomi, Hyaloptera amygdali, Tinocallis saltansand Aphis craceivora) on the developminl of C.septempunctata were studied in laboratory under the temperature 18～25℃ . The functional response curve of C. septempunctataaccordcd with Holling-Ⅱ model, tch maximum number of Aphis gossypiiconxrmmed per day by 1～4 th larvae stadia of C. septempunctata was respectively.12.24,32.98,133.33,300.30. The relation between the temperature (T) and fanctional response was: a=-0.9301+0.1584T+0.002954T^2, Th=8.135×10^(-3) T+4.324×10^(-4) T7.78×10^(-6) T^2 The effect of eiffcrent species of aphid and different denststics of aphis gossypii on the development of C. septempunctata was significant.
关键词
七星瓢虫
蚜虫
生长发育
捕食
Coccinella septempunctata L. aphid
funtctional response
development
