| 論文英文摘要 |
Lipaphis erysimi (Kaltenbach) is an important pest worldwide, causing serious damage to a variety of cruciferous crops. In this study, the life history and population parameters of L. erysimi on broccoli, cabbage and radish, were studied at 25 ± 0.5℃, 80 ± 5% RH and 12L: 12D under laboratory condition. The developmental duration of immature stage were shorter on broccoli (5.14 day) and radish (5.14 day), whereas the fecundity was higher on broccoli (68.32 offspring/female) and cabbage (77.92 offspring/female). In terms of population parameters, higher net reproduction rate (R0) (65.97 and 73.82 offspring/individual), intrinsic rate of increase (r) (0.4041 and 0.4065 day-1) and finite rate of increase (λ) (1.4980 and 1.5016 day-1) along with shorter average generation time (T) (10.37 and 10.58 day) were observed on broccoli and cabbage, respectively. In general, the reproduction and population performance of L. erysimi on cabbage was slightly higher than that on broccoli, but relatively lower on radish. This study provides important reference information on the life history of this pest. |