Dog poop attracts pests such as rodents and insects. Inside the excrement, there are usually bits of food that can be a valuable resource to pests. You won’t see them in the day however they come out at night. Some of the worst infestations have involved yards where dog feces were left for weeks if not months at a time.

Dog poop does not make good fertilizer. It is actually toxic for your lawn, causing burns and discoloring.

It has been estimated that a single gram of dog waste can contain 23 million fecal coli bacteria, which are known to cause cramps, diarrhea, intestinal illness, and serious kidney disorders in humans. Dog feces are one of the most common carriers of the following diseases:

Corona, Parvo, Giardiasis , Whipworms, Salmonellosis, Hookworms, Cryptosporidiosis, Roundworms, Campylobacteriosis, Tapeworms

According to the U.S. Centers for Disease Control and Prevention (CDC), dog poop can contribute to diseases which animals pass to humans, called zoonoses. When infected dog poop is deposited on your lawn, the eggs of certain roundworms and other parasites can linger in your soil for years. Anyone who comes into contact with that soil—through gardening, playing sports, walking barefoot or any other means—runs the risk of coming into contact with those eggs; especially your dog.