The most effective short-term solution to prevent the dog urine from killing the yard is to immediately water the spot where the dog peed. I usually run the hose for about 10 seconds over the spot. The water dilutes the urine and keeps the grass from turning brown. I call this a short-term solution because, at least in our house, it’s not very realistic to assume that we will watch where the dog goes to the bathroom and then go outside and water every time she does. Plus, it’s a waste of water. However, if you have new grass or just have a dog visiting, this may be the best solution.
looking brown spot – often surrounded by a halo of dark green grass
PetiGreen improves the environment of the soil so a larger population of microbes than the soil can normally support can survive. When the population of microbes reaches a large enough size they can process the excess nitrogen from the dog urine more rapidly than the nitrogen can kill the lawn. It takes time to reach a population that will prevent dog urine spots in grass but as you are using PetiGreen and the population is growing it can become big enough in just a few weeks that it can process enough nitrogen from the grass that new seed will usually germinate and start fill in the burn spots. Eventually the soil environment improves and the microbial population increases enough that the nitrogen can be processed before it has a chance to damage the grass.
7 Tips to Prevent Dog Urine Spots on Your Lawn - DoodyCalls
Giving your dog food that advertises reduction of alkaline levels in the urine won’t prevent your lawn from suffering “urine blight.” Remember, it’s not the acidity of canine urine but the high concentration of nitrogen that kills grass. In fact, feeding your dog this kind of food may cause kidney and bone problems because it interferes with amino acid production.
Dog Urine Killing Grass? Try These Solutions | Angie's List