Multidimensional Responses to Disease Information: How Do Winegrape Growers React to Powdery Mildew Forecasts and To What Environmental Effect?
研究加州葡萄种植者如何根据白粉病预测调整喷洒策略（包括用药种类、时间和用量），发现多维调整可能反而带来负面环境效应。
Access to better information can enable adjustments that improve individual and social outcomes. In agriculture, accurate forecasts can be especially valuable to both producers and society at large. We analyze the impact of disease forecasts on the responses of growers along multiple margins of adjustment. Using high‐resolution plot‐level panel data, we analyze how California winegrape growers adjust powdery mildew control strategies in response to disease forecasts. While trials that allow only treatment timing adjustments suggest these forecasts bring large environmental benefits, in practice many growers simultaneously adjust what, when, and how much they spray. We find that the net environmental impact of this multidimensional response may actually be negative.