I have a fescue lawn and I want to sod with bermuda. My lawn company just applied 3-way ester weed control today ( 2/8/2012 ) . How long do I have to be able to sod with bermuda? my plans are to kill off the fescue first with "round up" , then till, then sod with bermuda.. being that they just applied the 3-way ester today how long should I wait? does 3-way ester even prevent new sod from rooting? or is that just SEED?