Natural enemies (-The category of the natural enemies Predators:predators distributes in 200 families ,18 orders Parasitoids:Parasitoids distributes in 95 families,18 orders. Parasitoids：Parasitoids distributes in 95 families,18 orders. Predators：predators distributes in 200 families ,18 orders 一 Natural enemies （一） The category of the natural enemies