well, i been getting call after call from my flyers. landing most of the work. here is an odd request: (this, from a guy who used to be in the lawn business)- i'll need to kill the entire front lawn which contains 99.9% crabgrass. then i need to powerseed. my suggestion is that i spray now, wait a week-2 weeks, and seed. he insists that i spray in mid september, and seed in october. his reasoning-" i used to do this for a living, october is the best time to seed." would you even bother?