Grapevine leafroll disease (GLRD) threatens the economic sustainability of the grape and wine industry in the United States and around the world. This viral disease reduces yield, delays fruit ripening, and affects wine quality. Shady S. Atallah, Miguel I. Gomez,Jon M. Conrad, and Jan P. Nyrop from the University of New Hampshire published a Plant-level, Spatial, Bioeconomic Model of Plant Disease Difussion and Control: Grapevine Leafroll Disease in the American Journal of Agricultural Economics. The project examines the impact of alternative disease control strategies on distributions of bioeconomic outcomes and ranks them based on the vineyard expected net present values (ENPVs). Using simulation modeling them to analyze alternative disease control strategies that would not be possible using classical approaches.