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Agronomy Talk

E. Indiana & Ohio

Corn Diseases will be Greater than Normal in 2014

Published on Thursday, August 07, 2014

Chances are good that corn diseases will be greater than normal in 2014. There are several reasons why this may be the case. Relative humidity levels have been very high compared with the last five years. Rainfall in many areas has been well above average, and we had later planting in many areas.Corn diseases such as gray leaf spot and northern corn leaf blight usually don’t start showing up until late June and early July. That is when they showed up again this year, but with the high relative humidity levels and rainfall the disease appears to be spreading quickly.

When you couple the right environmental conditions with the later planting, leaf diseases are spread on younger plants. If the conditions continue to be favorable, leaf diseases will reduce the grain filling period and result in less yield and greater potential for stalk lodging. Talk with your Beck’s dealer or seed advisor to see if applying fungicides can help in your situation.

Author: Mark Apelt

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