Abstract: In this experiment, author investigated the dynamic of the three main pests (Grapholitha molesta Busck, Adoxophyes orana Fischer von Roslerstamm and Lyonetia clerkella Linnaeus)and the four main natural enemies(Propylaea japonica(Thunbery), armoia(Leis)axyxidis, Coccinella septempunctta, Orius minutus and Chrysopidae ) with the synthetic sex pheromone lures and the clap nets for understand dynamic of pests and natural enemies under organic management. The results shown that the generations of the three pests are distinctness, the peak of appear convergent; the number of the natural enemies accumulate gradually, the developing regulation is clear.