As we move deeper into the growing season, fungicide application decisions become one of the biggest sources of stress for farmers across the Midwest. Between aggressive marketing, endless online opinions, and an expanding list of fungicide products, determining whether, and when, to spray can feel overwhelming. Fortunately, advances in plant pathology and epidemiology have led to the development of disease forecasting tools that help improve decision-making and increase the likelihood of an economic return from fungicide applications. Read more about disease forecasting tools.
Tar spot was found in Lafayette County on July 9. Before anyone panics, it is important to remember one thing: Tar spot is present, but disease incidence and severity are currently very low. There is no immediate need to apply fungicides. Instead, now is the time to prepare, scout fields, and develop a management plan. Read more about Tar Spot in Wisconsin.