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gall midges

These insects (Cecidomyiidae) are common worldwide with around 6,000 species. The body length is 0.5 to 4, with a few up to 8 millimeters. The body is usually colored yellow-orange, ocher, light or dark red to almost black. They spend almost their entire life in the larval stage. The larvae of almost all species live monophagically (narrow food spectrum) on only one plant species. The fully developed mosquitoes only live for a short time and hardly absorb any food. In Europe, the leaf gall mosquito (Cecidomyia oenophila) and the vine blossom gall mosquito (Contarinia viticola) are among the Rebstock -Schädlingen. The females drill the underside of the leaf and the flower stems and lay their eggs. The hatched two millimeter larvae live in the educated eponymous Gallen, The Rebbblüten-Gallmücke lays the eggs in the still closed flower arrangements. They usually don't need to be fought because of parasites (e.g. wasps).

Gall mosquito - insect and aphid-eating larvae

However, there are also a number of predatory polyphagous species (wide range of food). The larvae of the species Aphidoletes aphidimyza feed mainly on aphids and Spinn mite mite , Some of these are part of the Organic crop protection Organic crop protection as beneficials used by spreading the appropriate granules in the vineyard. The mosquitoes lay their eggs directly in Aphid colonies of aphids from. The hatching larvae prick the aphids and suck them out. A larva can eat up to 50 aphids. After about two weeks, the larvae drop to the ground, penetrate flat and pupate there. A short time later, the adult animals hatch and the cycle begins again. See also under Vine enemies .

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