California Department of Food and Agriculture - Interim Progress Report CDFA Agreement Number 17-0416-000-SAInterim Progress Report • February 16th, 2018
Contract Type FiledFebruary 16th, 2018Leafroll is one of the most devastating and widespread viral diseases of grapevines. It reduces yield, delays fruit ripening, increases titratable acidity, lowers sugar content in fruit juices, modifies aromatic profiles of wines, and shortens the productive lifespan of vineyards (Almeida et al. 2013, Naidu et al. 2014). The economic cost of leafroll is estimated to range from $12,000 to $92,000 per acre in California (Ricketts et al. 2015) and from $10,000 to $16,000 in New York (Atallah et al. 2012).