GardenRx Treating Urine and Yellow Spots on Grass CuprockDIY 2019-03-05 #gardenrx #cuprockdiy #gardening Treating Urine and Yellow Spots on Grass Treating Urine and Yellow Spots on Grass. We love our pets but not the nitrate in their pee. Learn how to counter the acids in urine for a lush and green lawn. Like this:Like Loading... Related