The Effect of Tar Spot on Corn Hybrids in Wisconsin in 2018

Damon Smith, Department of Plant Pathology, University of Wisconsin-Madison, Brian Mueller, Department of Plant Pathology, University of Wisconsin-Madison, Joe Lauer, Department of Agronomy, University of Wisconsin-Madison, Kent Kohn, Department of Agronomy, University of Wisconsin-Madison, Thierno Diallo, Department of Agronomy, University of Wisconsin-Madison

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https://badgercropdoc.com/2018/12/19/effect-tar-spot-corn-hybrids-smith-2018/

Summary: Some corn hybrids are more resistant than others to the tar spot pathogen. Resistance is not tied to a particular brand. That is to say, when it come to tar spot, every hybrid has to stand on its own. Strong resistance in corn hybrids in the trial above wasn’t common and immunity did not exist. As you make seed selections for 2019, push your seedsman to show you data from other trials for a particular hybrid where tar spot was a problem. Check other states data if you have to.

 

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