 August 15th, 8 p.m., Iowa State Fair Grandstand. Reserve tickets on sale now through iowastatefair.org. And at the Iowa State Fair Ticket Office. Convenience fees apply to all tickets. Out in the field we go with Nate Meyer. Pollination is in various states on the corn crop. Of course, now that we got it cooled down, that is much more conducive to strong pollination, proper pollination, if you will.