By Matt Reese
With growing concern about fungicide-resistant frogeye leaf spot in some parts of the Corn Belt, farmers in Ohio may wondering if this will be a management issue with soybeans in 2020. This could be especially problematic after the fairly mild winter conditions that may set up potential problems for the 2020 growing season.
“Frogeye leaf spot has now become a recurring problem for soybeans in southern up to central Ohio. High levels of inoculum — lots of leaf spots — in the fall can overwinter in Ohio, so this is especially important for those fields that are continuous soybean,” said Anne Dorrance, Ohio State University Extension plant pathologist. “The first thing is if you had frogeye at the end of the season in 2019, please do not plant the same variety back in that field. I do that to create the best opportunity for our research plots to develop disease for fungicide studies, and since I have that covered, you don’t need to do that. … Continue readingRead More »