Abstract: Based on the studies of the influence of host plant on biological characters of Myzus persicae, the effect of different temperature and host plant on the life table of the aphid is studied. The results show that the optimum development and lethal temperatures for theaphid are respectively 28 and 33℃. The effect of the host plant on the intrinsic increasingcapacity (r_m') of the aphid is significant. The optimum temperature for aphid developmentin two combinations of different hosts is respectively 20.66 and 26.44℃, but 24.43 and 28.99℃ in those of same host. With the increase of temperature, the time needed for,doubling the population is shortened in negative index. The aphid translated from originalhost to other ones is more susceptible at low temperatures.

Key words: Myzus persicae, Life table, Host plant, Temperature, Evolution, selenium, Xiangcheng, growth, AsA-GSH cycle