Dr. Lee just wanted to give you some more info on the field corn you were going to pick when you lived in Illinois. BTW I was born and raised in Southern Illinois myself so know all about this. That corn you were by is what we call field corn. Yes it's for feed and stuff. Hard ad a rock when it's mature but.....us hard core corn eaters that just can't wait for the sweet corn to get ready know that if you pick the field corn early you can eat it too. Maybe not quite as sweet but tastes just as good.