Nearly half of the corn is emerged across Iowa as of May 9 with up to 60 percent emerged in the north central cropping district according to USDA-NASS. As mentioned in a May 6 Integrated Crop Management News article, 2010 has been one of the best planting seasons in history. Unfortunately, recent cold temperatures and a hard freeze across central and northern areas of Iowa resulted in some foliar damage to emerged corn seedlings.
Iowa State University
Elmore, Roger, "Hard Freezes and Emerged Corn" (2010). Integrated Crop Management News. 455.
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