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.