havn't trid the hockey stick method but sounds possible (and would probably give the neighbors something good to talk about also) this fall when the temps are cooler and the crabgrass stops growing, reseed heavily and rake in good (tear out as much crabgrass as possible) and get the new stuff started. It will make it through the winter and then in early spring put down pre-emergent. Even better they make a pre-emergent that won't harm new growth and you can reseed again the spots that didn't take in the fall. The first summer it won't be beautiful but it will by the next, just keep putting down the preemergent every spring
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