Storms on June 4 and 5 not only brought more ‘unwelcomed’ rain but also damaging winds and destructive hail. Variation currently exists in corn development across Iowa, ranging from emerged to the sixth leaf stage. Vegetative stages are determined and most often referred to based on the leaf-collar method developed by Iowa State agronomists.
Iowa State University
Elmore, Roger W. and Abendroth, Lori, "Assessing Hail Injury in Corn" (2008). Integrated Crop Management News. 897.
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