So, the question for you..... which is more important to you: using Zidua Pro, or getting the beans planted today?   If you are willing to switch to another herbicide, go ahead and plant.  If you are dead set on using Zidua Pro, I think it is awful risky to plant today, and not spray until Saturday.....Sunday.... Monday..... You do understand that if those beans start emerging, you can't use Zidua Pro, correct?

Your choice.

BTW, did you know that Sharpen has a supplemental label to use for weed control in dormant alfalfa?  I question how much Sharpen is going to help you in killing alfalfa.

BTW, planting RR corn into sod would give you a whole lot more options on controlling alfalfa.  Any reason why you are not planting corn in this situation?