I moved into a house last September. It appears that the front yard used to be a home to a rather large tree. The tree was removed and the front yard was left alone. It is now a field of dirt with the most horrible weeds. I don't want any grass in the front yard and would like to kill all plant life that is currently there to start a new bed. These weeds look like dandelions, but have a root system more like thick spaghetti. They are thick, but tender and seem to spread like crazy. Sort of the behavior of a ground cover. No long tap root. I have tried to pick out all of the roots, but I think I need to take more drastic measures. The roots have actually started growing in the garbage. Any suggestions.