Dog urine damage is a common problem for home lawns, and one that has generated numerous home remedies and commercial products claiming to be cures for the spots. This lawn problem is misunderstood when it comes to causes and cures. Dog spotting on turfgrass is caused by the deposition of a high concentration of nitrogen (N)-containing compounds and associated salts on a small area in the lawn. These deposits are often concentrated in a relatively small portion of the lawn, resulting in turf injury or death. Some common “urban legends” surrounding dog urine damage to lawns are:
• Only female dogs cause spotting in lawns.
Source: Colorado State University Extension for this information (December 2010 – Fact Sheet #553).