Looking back, Ferrie says northeast Iowa, southern Minnesota and parts of central Wisconsin saw their first tar spot outbreaks late in September of 2021. But they occurred too late to do much crop ...

This season, given commodity prices and the range in crop quality, Ferrie is hearing a variety of different perspectives from farmers on how they plan to deal with tar spot. Farmers are fitting ...

South Dakota State University Extension will host a webinar about tar spot for corn producers and industry professionals on ...