Dean Malvick, Department of Plant Pathology, University of Minnesota
Recently there have been numerous reports of "moldy corn" across Minnesota. The late harvest, high moisture corn, and continuing wet conditions have contributed to this problem. At least two main questions should be considered. Are the problems at this point significant ear and kernel rots that are damaging the kernels, or is the problem primarily superficial growth of fungi on the grain surfaces? Both types of fungal growth on corn can cause greater problems with grain quality if the corn is not harvested and dried properly. The current problems with "moldy corn" are still not completely clear, but we can make some general comments on what we have seen and heard so far.
By Lizabeth Stahl and Bill Wilcke
Extension Educator - Crops and Extension Agricultural Engineer
Soybean moisture levels of 16 to 20% or more at harvest have been reported throughout the state as this challenging harvest season continues. If storage temperatures are below about 60F, soybeans at 13% moisture can usually be kept for about 6 months without having mold problems. At a higher moisture content, how long can soybeans be stored before mold becomes a concern?
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