Sometimes weeds get into awkward spots where it’s hard to get them, such as in between paving and on gravel areas. If you don’t get all of the root, it will simply grow back in just a few weeks.
For these areas use, Resolva Path and Patio Weedkiller which is specially formulated for those hard to reach spots. It gets right down the root, killing the weed quickly and permanently. It also leaves no nasty residues and doesn’t stain!