There will be a lot of weed issues in corn fields in my area that have significant wind and hail damage.  I had just cultivated most of my corn in the days previous to storm and now it is too tall to go through it again.  I have already found a few waterhemp patches.  Normally, the corn would have been canopied and the field would stay clean.  What herbicide options should I consider to help keep the fields clean(ish).  I probably won't get to it for a week or so because I have beans to spray and will most likely need to used drops on my sprayer to get coverage.