Several factors converge to increase the threat of diseases on a corn crop, from the history of a disease in the field, to the amount of residue, to the weather. Unfortunately, several corn diseases are carried by wind and can end up in your field whether you practice good rotation practices or not.
Related: How do you triage which fields will need fungicide first? Top tips here.
They key to managing disease in-crop is correctly identifying leaf symptoms — could it be mechanical or spray damage? An insect and not disease?
In this Corn School episode, crop plant pathologist with OMAFRA, Albert Tenuta, shows us how to properly scout corn plants, where to look for the first symptoms, and how their location can guide our plan of action going forward.
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