With dry conditions this past year, white mold was not expected to be much of a problem. However, Corteva Market Development Specialist Ron Geis says white mold was found in new areas. “It’s not a wind-moved disease, it survives in those little sclerotia in the soil,” said Geis. “It may be getting in the soybean meal and going out in the manure into the fields. We’re not quite sure how it’s spreading, but the fact is it is spreading.” Good varietal tolerance is advised. Secondly, white mold needs to be managed. White mold symptoms may not be seen until August, but infection happens in late June or early July. The first fungicide application is recommended when soybeans are in the R1 stage. In addition, wider rows are recommended to help circulate air movement and prevent the disease from getting a foothold in the crop.
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