2017 has been another typical year of extreme weather in the Midwest.
We were generally cooler than normal and wet into late May, with SE Iowa having a drier than normal June and early July, although rains came to many areas July 9 and 10. Disease development was initially slow, but because of recent rains, conditions are now favorable for disease. Corn fields planted in April tended to be a little more erratic in emergence and often are 10% lower in population than normal. Corn planted early, generally rooted down and pollinated well, although the corn is often 20% smaller than usual. Corn planted in mid to late May, could struggle to pollinate well, due to the hot night time temperatures forecast for July 18 to 21.
Thoughts from Ph. D. Corn Breeder and Miller Hybrids Owner, Bob Miller.
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