I've been lurking and reading here for sometime on Lawnsite and with my first post I'd like to 1st thank everyone for their collective knowledge and contributions. I am new to lawn care and do just a few homes; I could use some advice on how to best (economic) treat this fungal problem..
This problem arose in late June after about 10 straight days of rain in a drainage problem area. I believed it to be Pythium Root Rot since it was laid flat, blackened roots, and wet/slimy appearance. I treated with Agri-Fos (potassium salts and phosphorus acid) mixed 1:2 with water. I did a 2nd dose about 2 weeks later (couple days ago).
Any advice would be much appreciated.