This is in reference to Cecil’s article headlined on the front page of the site today: http://www.straightdope.com/classics/a2_072.html
I think Cecil is being a little alarmist. There’s a fifty acre offleash dog park here in Bellevue WA where thousands of dogs run free over the course of the summer. If Cecil was right about what a great weed killer dog pee is, the place would be a barren wasteland. But no, it is one of the most lush, flora filled places I’ve ever seen. The plants (including the grass and trees) are thriving.
Besides, if pee was such an effective plant killer, wouldn’t we all be out in our yards, peeing on the dandelions? Heck, I would.
Sure, dog pee can be bad on your yard, if your dog is locked into a small area and spends all day repeatedly peeing in the same areas. But a couple occasional squirts from Fido as the neighbors walk him by is harmless.