After reading how to kill Spanish Moss on your site, I went & purchased Muriate of Potash, as I had asked for Potassium. I have grade 0-0-62, soluble potash (K2O)62.0%. I sprayed a good mixture mixed with water & did a test spray. Three days later, I see no evidence of browning or of killing this moss. Did I do something wrong, is my Potash not correct?
Please advise me.