I am looking for the best/cheapest way to remove Fescue from Zoysia. I have an area that had seeded Tall Fescue and later on it was sprigged with Zoysia. The Fescue was not properly killed off and now I have a beautiful zoysia lawn but every year about this time....you guessed it...Fescue pops up everywhere. I have heard of revolver but dont want to sell my house just to purchase this stuff. Will it harm the Zoysia to spray a non-selective herbicide when it is dormant and when the ground temp is high enough? Any ideas? Thanks in advance!