The Cornell Climate Smart Farming Growing Degree Day (GDD) tool calculates heat accumulation to predict crop plant, pest and pathogen development for any field selected from a map. This webinar will provide an in-depth look into the inner workings of the tool and how Extension specialists and farmers are using the tool to make decisions to optimize varieties and yields, and minimize labor costs. Speakers: Kitty O’Neil (NNY Regional Ag Team) & Brian Belcher (Cornell)