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Designation for animal organisms or even microorganisms, which among other things live from pests of the vine (see under Vine enemies ) whose population regulate and keep to a limited extent. They are in the two groups of predators (insects that eat other insects) and parasites distinguished. The latter can also insects that use others as hosts, but also micro-organisms such as nematodes. bacteria (for example Bacillus thuringiensis ) mushrooms, Protozoa (single-celled animals) and virus his. In predatory insects, a distinction is made in so-called protective robbers, which are present even before infestation of a pest in sufficient numbers and prevent colonization by pests from the outset (for example predatory mites and spiders), as well as so-called purge robbers, which migrate only after infestation of pests and then rid the host plant of the pests (for example, lacewings and ladybirds).

Beneficial insects - ladybug and predator bug (murder bug)

The useful predators or parasites include many types of insects or their larvae such as lacewing. gall midge. gall wasp. ladybug (Ball weevil), earwig. ichneumon fly (Wasp) predatory mite and assassin bug, The bees Of course, due to the fertilization of the vine (where they play only a minor role) of course also to the beneficials, but to a lesser extent they can like the wasps even be pests. The star can also occur as a beneficial insect (insect), as well as a pest (berry feeding). Insect beneficials are also grown in the lab and then targeted against pests as an environmentally friendly alternative to insecticides used in the vineyard. They are an effective measure in the Biological crop protection,

Lacewing larva captures aphid and sucks it

Ladybug: By ElinaElena on Pixabay
Predatory bug: CC BY-SA 3.0 , Link
Lacewing Larva: © W. Neudorff GmbH KG -

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