There is a general misunderstanding among the gardening (and yard owning) community about dog spots. It seems that some people believe that dog spots occur because of a high or low pH or because of some sort of poison in a dog’s urine, but that really isn’t the case at all. Dog spots occur because of something that I pointed out a few weeks ago in another post. Urine contains a lot of nitrogen. When a dog pees on your lawn that extra nitrogen isn’t used and so ends up being poisonous to the grass which is peed upon. You’ll notice that around the periphery of a dog spot the grass is particularly bright green. This is because the extra nitrogen helps the grass in that location rather than poisoning it. If you want to get rid of a dog spot the best thing to do is to follow your dog around carrying a five gallon bucket of water and pour it over the spot as soon as the dog pees — this should stop the grass from dying, but will probably not get rid of all the extra nitrogen and so you’ll end up with a bright green spot instead of a brown one.