Abstract
Grapevine yellows are widespread in many viticultural areas of the world. They are spread by insect vectors. In order to search for the potential vectors of the diseases, research was undertaken to identify the leafhopper and planthopper species present in Austrian vineyards. Particular attention was devoted to find H. obsoletus in the vineyard infected with BN/VK in Burgenland and S. titanus in vineyards near the Austrian-Slovenian border. Both vectors and the disease of BN/VK are present in Austria.Regular samplings and checks were taken in three viticultural areas (Lower Austria, Burgenland, Styria) during the vegetation period of 2004, between the beginning of May and the end of October. Samples were obtained with yellow sticky boards, suction sampler and occasionally with sweep net from the canopy of grapevine, the undergrowth and the bordering vegetation.The 5186 leafhopper individuals belonging to 87 species of 5 families were collected during our samplings. The most abundant species trapped in the...
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