The main weed problem we have in our small back yard is plantains. They really love it there, probably because it's rather shady, clay soil, and somewhat compacted. We are slowly combatting the clay and the compacted soil with aeration and compost each year, and we do corn gluten in spring and usually overseed in the fall, but it will always be shady, and since it's a small yard it will always get a good amount of foot traffic. I just spent two weeks pulling them up, which I hope will at least reduce the population. Is there anything else that you would recommend--any soil conditions or nutrients that plantains esp. don't like?