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Výskyt Drosophila suzukii v ekologicky vedené vinici
Kadubec, Martin
Drosophila suzukii is an invasive pest that poses a major threat to the world's viticulture and wine industry. The first occurrence in Europe dated back to 2008. Thanks to climate change, this pest is now spreading to colder areas where conditions were not suitable before. The Czech Republic is a typical example. The aim of this study was to evaluate the susceptibility of individual grapevine varieties to the pest Drosophila suzukii under Czech conditions. The experiment was carried out in the south-eastern part of the country, specifically in the Slovácko wine subregion. Observations were carried out on 5 varieties, namely Riesling, Tramin red, Hibernal, Solaris and Svatovavrinec. Observations were carried out over a period of six weeks, during which time a total of 12 samples were taken on each variety. The evaluation took place in 2022 in the months of September and October. Furthermore, these results were statistically evaluated by variance analysis. The varieties with the highest incidence of Drosophila suzukii were Hibernal and Solaris, while the variety with the lowest incidence was Riesling.

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