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Xiphinema spp. in vineyards of Istra peninsula in Croatia

Grape production in Croatia has a long tradition. The area of vineyards decreased due to different causes, and from 1991 the area declined by 29 %. From 1992 –1995 Croatia has had approximately 56 000 ha of vineyards, and Istra Peninsula has 12,6 % of it. Of this production 92 % in Istra is private vineyards. Grapevine varieties are 70% white and 30 % black. During four years (1992-1995) a survey has been undertaken for presence of Xiphinema spp. associated with grapevines. Soil samples were taken during June and September every year. Sixty-one vineyards have been analyzed for presence of Xiphinema spp on different localities. Xiphinema spp. were found in 37,70% of the samples. Of all examined vineyards, Xiphinema index Thorne & Allen, 1950. Was present in 8,20%, Xiphinema pachtaicum (Tulaganov, 1938.) Kirijanova, 1951. in 16,39% and Xiphinema spp. in 13,11%.

Xiphinema spp.; vineyards; Croatia

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