The rate requests, from some of the more popular health plans, suggest that insurance markets are still adjusting to shock waves set off by the Affordable Care Act. It is far from certain how many of the rate increases will hold up on review, or how much they might change.
For post-emergent application with Tenacity Herbicide use at a rate of 4 to 8 ounces per acre in at least 30 gallons of water per acre adding in a non-ionic surfactant; a repeat application at 2 to 3 weeks may be required for more adequate weed control.
Assuming you already applied lime (following your soil test which told you how much to apply and which kind of lime) and you fertilized (because you live in a time zone fully 2 months in the future because you should not be fertilizing in the early spring), then you should wait a full 4-5 months to put down seed.