Epamig evaluates disease-resistant grape varieties in Minas Gerais

The Minas Gerais Agricultural Research Company (Epamig) has completed an evaluation of eight disease-resistant grape varieties for wine production in southern Minas Gerais. The project, conducted between 2021 and 2025 with funding from Fapemig, focused on PIWI cultivars—hybrids created by crossing Vitis vinifera with other species containing pathogen-resistant genes.

In partnership with Stella Valentino winery in Andradas and the Italian nursery Vivai Cooperativi Rauscedo, researchers tested four white cultivars (Sauvignon Kretos, Sauvignon Rytos, Fleurtai, and Soreli) and four red cultivars (Merlot Kanthus, Merlot Khorus, Cabernet Eidos, and Cabernet Volos).

The study demonstrated significant potential for sustainable viticulture by reducing fungicide use. Researchers noted that during recent summer and winter production cycles, no fungicides were required to control downy mildew, one of the primary grapevine diseases, and only three applications were needed to manage powdery mildew.