A number of foliar diseases can impact corn production in both Indiana and Michigan.
28 articles tagged "tar spot".
Planting has begun to ramp up here in Indiana. I want to remind you of a few resources for monitoring field crop diseases.
Tar spot of corn has been a concern this season after the localized epidemics we experienced last year in Indiana.
Soybeans We are starting to see a number of diseases in soybean across Indiana. This week in our plots in both northern and southern Indiana initial foliar symptoms of sudden death syndrome are making an appearance. In addition, we continue to see frogeye leaf spot and Septoria brown spot – the levels of both of these diseases were very low and our soybean are about R4 (beginning pod) to R5 (full pod). I suspect that if we continue to receive intermittent rain, we might start to see a bit more disease in soybean. Corn Tar Spot – We have confirmed 11 counties with active tar spot as of August 28 for the 2019 season. These counties all had a previous history: Elkhart, Jasper, Kosciusko, La Porte, Lagrange, Lake, Marshall, Noble, Porter, Pulaski, and St. Joseph (figure 1). I have included the 2018 tar spot map from Indiana for your reference[Read More…]
Southern Rust is now confirmed in 11 counties in Indiana.
Southern Rust was confirmed in Gibson County this week.
Southern Rust: Southern rust was officially confirmed in Posey County this week. We currently have two positive counties and one probable in Indiana.
It is time to get out and scout for corn diseases. Even though recent weather conditions have been hot and dry, there are a number of corn diseases emerging in the lower canopy.
