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Have your agronomic questions answered by a Farm Journal agronomist. E-mail us directly at, and we’ll respond on this blog to provide an interactive dialogue.

How Do I Address Foliar Diseases In Corn?

Oct 05, 2010


Question: I’ve had some problems with foliar diseases in my corn this year. Any suggestions for next spring?
Answer: Are you aware of why you’ve had the problem? If you’ve had difficulty doing normal tillage and burying residue the past couple of years, you may have inoculum built-up. Inoculum can also come in from neighboring fields. Corn-on-corn in no-till and strip-till supports the toughest disease situations of all, especially if you grew a susceptible hybrid that produced a lot of inoculum. In any case, hybrid selection becomes very important. Resistance to diplodia is fairly easy to find; talk to your seeds person so he or she can also recommend hybrids with good scores on fusarium and gibberella.
This blog is provided as an interactive way for you to have your questions answered by our Farm Journal Agronomists. E-mail your nitrogen, soil fertility, soil density, planter set-up, scouting, and other questions to:
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