I've had TARR the past two years in my Zoysia lawn. I have a commercial guy that does all the fertilizing, weed killer, etc and he had some success last year spraying Heritage. It came back worse than ever this year with the wet spring. I decided to try and treat myself so I used the Scotts Disease EX which I read is the consumer version of Heritage. This along with peat moss has provided really positive results so far.