from the You Bet Your Garden's solutions from their web site (
CLICK HERE to access):
"herbicides are going to work best on most weeds when the weather is hot and dry, but that's not the case here. Most sources specify that creeping Charlie is much more vulnerable to this kind of attack right now—in the fall, when the plant is storing energy—than in the summer. So if you
are going to go after Charlie with
Iron or the Mule Team, don't delay. Do a first run ASAP, and then repeat it a few weeks later."
If you want to deal with this in a non-herbicide manner, you could use a 20 Mule Team Borax solution:
"To treat an area of approximately one thousand infested square feet, dissolve 10 ounces of Twenty Mule Team Borax in four ounces of warm water. When you have all the borax in solution, mix this into two and a half gallons of warm water, stir well, and spray directly on the weed with a sprayer that has never held chemicals of any kind! (One that you've used to apply non-toxic things like deer repellant, compost tea, or beneficial nematodes is fine; just remember to always clean your sprayer after every use, including this one—you don't want any residual borax in there.)
You'll get the best results when the weed is dry and rain is not predicted for a few days afterward. And be vigilant when any new runners appear.
If you go the herbicide route, Iron-X will do the trick:
CLICK HERE for info
Good luck