Term for animal life, or even micro-organisms that live among other pests of the vine (see Vine-enemies ), which regulate population and hold a limited extent. They are (eating insects that other insects) in the two groups of predators and Parasites distinction. The latter can also insects that others use as hosts, but also micro-organisms such as Nematodes , Bacteria (eg Bacillus thuringiensis ), mushrooms , protozoa (single-celled animals) and virus be. In the predatory insect protection is divided into predators that prevent colonization by pests of the vine from the outset, as well as cleansing robbers to free the cases of infestation by the pest, the host plant.
Among the useful predators and parasites, for example, are among the insects , Gall midges (Certain types), (Ball beetles), Earwigs , Parasitic wasps (Wasp, only certain species), predatory mites and Assassin bugs . The Bees are due to the fertilization of the vine (where they only play a minor role) of course also to the beneficial insects in the lowest level but they can also even be pests (see also Wasps ). The Star can also occur as a beneficial insect (insects), as well as a pest (berry feeding). In Integrated Pest Management will be protected from insect predators or even grown in the laboratory and then in the vineyard targeted against pests as an alternative to Insecticides used.