The objective of the present study was to identify the mitefauna associated to the spontaneous vegetation of vineyards of Vitis vinifera var. Cabernet Sauvignon, Merlot and Sémillon and V. labrusca var. Isabel in the municipalities of Caxias do Sul and Sant'Ana do Livramento, Rio Grande do Sul, Brazil. Monthly samplings were accomplished during the period of June to September 2009 and June to September 2010 in Caxias do Sul and from June 2010 to June 2011 in Sant'Ana do Livramento. A total of 474 mites belonging to 14 morfospecies of nine genera and five families (Phytoseiidae, Tarsonemidae, Tenuipalpidae, Tydeidae e Winterschmidtiidae) were identified. The highest abundance of acarids was registered in Caxias do Sul, however a highest species richness was registered in Sant'Ana do Livramento. Results shows that most of the mitefauna collected at the nine sampled vineyards were registered on Sida rhombifolia L.; dominant mite species were Lorryia sp., proceeded by Typhlodromalus aripo (Muma, 1967) and Steneotarsonemus sp..
Acari; biological control; integrated management; Vitis vinifera; V. labrusca
