A new disease is plaguing cornfields across the Midwest. Phyllachora maydis is the fungus that causes a corn disease called ...

It may be time to brace yourself for a summer heavy with tar spot outbreaks. According to ipmPIPE, an online pest mapping system, nearly 20 counties across four states have reported fields with ...

Only a little tar spot infection warrants a spray, so a preventative fungicide application is more effective than a curative application. Malvick says if you see 3% disease severity on the leaf ...