Being able to predict the cold hardiness of grapes could help growers know how to respond when severe freezes occur. Researchers at Washington State University are developing a computer model for predicting grapevine cold hardiness that could be in place next winter. The model, currently being integrated with WSU’s AgWeatherNet, is being developed initially for two major wine grape cultivars, Chardonnay and Cabernet ­Sauvignon, and Concord juice grapes, though additional varieties soon will be included. The model, similar to other disease and pest models developed by WSU, will predict cold hardiness at any site that has a weather station. For […]