Term for animal creatures or micro-organisms that live on vine pests (see under vine enemies), regulate their population and keep it limited. They are divided into two groups: predators (insects that eat other insects) and parasites. The latter can also be insects that use others as hosts, but also micro-organisms such as nematodes, bacteria (e.g. Bacillus thuringiensis), fungi, protozoa (unicellular animals) and viruses.
Among predatory insects, a distinction is made between so-called protective predators, which are already present in sufficient numbers before a pest infestation and prevent colonisation...
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