So far, this growing season has been relatively quiet on the crop disease front, likely due to the mild weather this spring has brought us. In its place we have seen quite a bit of concern with herbicide injury. Where diseases are concerned, here is what we have encountered so far in the Plant and Insect Diagnostic Clinic:
Corn
Pythium sp./spp. (Story and Wapello counties)
Rhizoctonia sp./spp. (Clinton and Polk counties)
Fusarium sp./spp. (Polk County)
Anthracnose leaf blight (Fremont County)
Soybean
Pythium sp./spp. (Lee County)
Fusarium sp./spp. (Polk County)
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- Extension Specialist, Integrated Pest Management