On extremely hot and dry days, an irrigation event can decrease canopy temperature close to 50 degrees Fahrenheit. Relative ...

As you scout and think you’ve found the disease, an easy way to confirm what you’re dealing with is to take your hand and try to wipe the tar spots off the corn plants (gloves are recommended).

Iowa farmers say a foliar fungicide application can add more bushels per acre by preventing losses to disease pressure and ...

An agronomist with AgriGold says many farmers have tar spot on their mind. Brian Weihmeir, who covers central Illinois, says the yield robbing corn disease is at the forefront of many farmers plans ...

The South Dakota State University Plant Diagnostic Clinic helps producers, gardeners and homeowners assess possible diseases ...

Gray leaf spot, caused by the fungus Cercospora zeae maydis is the most significant yield-limiting disease of corn worldwide [1]. The disease was first reported in Illinois in 1924, and has increased ...