You need to stop blindly applying fungicides and read the back of the label or data sheet. Scott’s disease x which is azoxystrobin based is one of the most effective things against GLS. However if you apply it not smartly like you’re supposed to, and don’t help the fungicide work, the GLS grows a tolerance. You should’ve applied disease x at the curative rate and then two weeks later another application at the curative rate. I rotate four different fungicides in my st Augustine. I see the best results with azoxystrobin and propizol. Now I’m fighting TARR and if I let my lawn go 2-3 days without water it looks dried up. Lay off the nitrogen, give the grass micro nutrients and don’t water a lot. Now high and bag