Abstract:

This experiment studied on the interspecific competition between Bemisia tabaci and Trialeurodes vaporariorum and the selection of two pests to the eggplant, the cucumber, the tomato and the hot pepper in laboratory in 2008. For studying on the interspecific competition between the 2 pests, T. vaporariorum and B. tabaci were put the same number into the cage with one different host plant respectively and put two pests according to the different proportion into the cage with one eggplant. The selection of T. vaporariorum to pumpkin and eggplant was tested. The results showed that on the four kinds of host plants, the ability of building population of B. tabaci was higher than T. vaporariorum, especially on the eggplants; T. vaporariorum has been replaced by B. tabaci in no mater what propotion on eggplant; T. vaporariorum like pumpkins more than eggplants. It indicated that B. tabaci has higher competition ability than T. vaporariorum.