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For the first time in the 1940s as a technique developed biotechnological process for the environmentally sound control of vine pests. It is also known as "confusion technique" or "mating disruption" or in English as "mating disruption" or "sexual confusion". The procedure has become established very quickly and since the 1980s, also used in wine-growing wide. Here are species-specific, effective only for certain insect pheromones spread (sexual pheromones) produced synthetically and in the vineyard. In nature the males are attracted by the fragrances of the female. Although they give off is still the substance of the sets, however, the widespread cloud sprayed. Thus, the males are confused, can not follow a single track, and the mating is prevented. A winemaker has so aptly called "No sex for butterflies" created. The unnamed, but sterile eggs are laid, but put forth no larvae. Before the wide-scale spraying of pheromone traps flight time and flight level, and thus found the ideal fighting stage. These devices consist of a small container with the specific pheromone and a strip of glue. Depending on the number of captured males of the scope is defined.
Depending on the examination results will now be the pheromones in various ways applied in the vineyard. Most common are filled with the drug dispensers, which are usually distributed on a 500 hectare. A special form of the so-called Spaghetti Dispenser, where the pheromones are incorporated into plastics and wires that are attached to the vines. The big advantage is that no damage to the environment (soil, water), human or animal associated with it and there are no residues on the crop. The amount of chemical Insecticides is reduced and an increase of the Beneficial achieved. Why is recognized is a Ecology , Springwurmwickler and Grape applied. See also Integrated Pest Management , Organic Viticulture .