I had lawn disease for several years in a row that was called "red thread" which was scattered over 50% of my lawn along with "brown patch" over another 20%. Both diseases were verified in the samples that were tested my local state (CT) agricultural experiment station. They recommeded a fungicide, less irrigation, thatching, and replanting in the early fall. I would do that and my lawn would recover and look great again by late fall.
Unfortunately, this happened every year.
Early this year, I bought 3 bags of Heritage G and diligently followed the instructions to the letter. Rather than do the entire lawn I only did the areas that went bad each year. (no problems under trees or other shaded areas so those were skipped.)
By mid summer, both diseases were back and I was greatly disappointed. Even applying it more than the recommended amount wouldn's stop it and now I'm thatching and planting again. This product did nothing for me.
Purchased this to both prevent and hopefully cure Pythium Blight /cottony mycelium growth in early spring of 2012. Didn't see any results. Given the expense, I can't recommnend this product if you're dealing with the same lawn disease that I have.
I'm very disappointed with this product. I bought it for Plythium Blight that was just starting to crop up, but it accelerated the spread. I had to switch back to Armada to get rid of and control it. I tried the Heritage because your supposed to rotate chemicals. I won't be using this product in my rotation anymore.