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

What Would Cause Corn Ears to Split?

Feb 09, 2012

 

Question: Last year, we had a number of ears of corn that split. We are sending you a picture, so you can see what we’re talking about. What would cause this?
 
corn 1
 
 
Answer: I can’t tell you with 100 percent certainty what caused the ears to split like this, but there are only a couple of things I can think of that may have caused the problem. These split ears are pretty unusual and I would say that, most likely, they were caused by a genetic mutation. A second possibility would be a heavy stinkbug infestation. What occurs in that scenario is that in the early shoot, around V9, the stinkbugs pierce completely through the ear and cause an infection to occur. I have seen this type of stinkbug problem only once in 25 years, however.

 


 

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