Thanks for the link miles, I'll check out that write-up. As far as something that could have happened.... I did start cutting my grass on a lower setting a few years back and I really think that it could have been the problem that opened up this whole issue. As far as growing something taller, I did raise my mower height and am going to try not to cut as much this year. I read somewhere about vinegar, but it supposedly kills everything from what I understand so that's why I decided to see if you guys had any ideas I had missed.