When I walk my dog around the neighborhood, she poops whenever nature calls. I can't imagine any deterrent that would stop her once she gets into squat position. A little poop, promptly picked up and thrown in the trash, doesn't hurt anything.

My suggestion to you would be to post a friendly reminder to your neighbors to pick up after their dogs. Maybe tacking up a few plastic bags.. or even providing a little trash bin would help. Conscientious dog-walkers don't leave the house without a couple plastic bags in their pocket.. but maybe folks in your area need a gentle reminder.

Motria,
Great advise I couldn't agree with you more. Although I will say it is likely kaydgardener is doing research for a book as this thread is posted by she/he on every GW regional forum and she/he just became a member a few days ago. In my humble opinion I think it would have been courteous if kaydgardener revealed her/his intentions. kt..from New England