Nope. It has to touch living leaf tissue to work. Pouring it at the base of the weed doesn’t work. The weed takes it down to the root level, it kills the roots, and the weed dies. Round-up or Kleen-Up don’t build up in the soil. If it DID, that WOULD be trouble!
This is why it’s important NOT to spray it on your tomato plants!
I had a, ‘feuding neighbor situation’ where a woman came in to my Garden Center for advice on what to do. Her neighbor sprayed Round-up all over her vegetable and flower gardens!
I told her to take a LOT of pictures, call the cops and file a complaint, and to hose down the area as much as possible to wash it off the plants if she could. (Didn’t work - he did it at night, so the plants were already taking it up.) :(
People would cut down trees/shrubs on the property lines, they’d purposefully plant Creeping Charlie in lawns.
People ARE fecking NUTS, on so many levels, and it’s a primary reason why I haven’t had/wanted neighbors for 30 years! ;)
One of the reasons, if not perhaps the main one, there is so much of the stuff in grains is because Monsanto genetically engineers many crops as “Round-up Ready” so they can be saturated with Round-up and not die.
If you know anyone who will purposefully plant Creeping Charlie in my lawn, let me know, I'll send them my address. If I wanted really piss someone off I would plant Bermuda grass in their lawn.