Due to recent discussion, this would be a good time to start a thread with regard to sustainable/organic thatch management. There are 3 possibilities that come immediately to mind. Compost Compost tea Molasses or other appropriate microbial stimulant I see using the above, either alone, or various combinations, along with grass recycling, as a very effective means for managing thatch. I believe I have some papers on this somewhere if anyone is interested. Please feel free to contribute your ideas, experience and methodology.