Debateable as to the cheapest way to kill 'em, but I pray to Saint Pre-Emergent of Houston and believe he will do what is just and strike at the hearts of sedges, killinga, and crabgrass to prevent unholy germination.Redland1 said:
That being said if Saint Pre-Emergent lets me down, it will take multiple applications of Sedgehammer or another product like Dismiss or Image. If you weaken the weeds, the summer heat will take care of the rest.
If you're wanting to be a little more protactive and have money to blow, grab some Pennant Magnum and spray er down.