To kill ground ivy (aka creeping Charlie) you need to spray it with Bonide Chickweed and Clover Killer. Make sure to spray it when it isn’t going to rain within 24 hours or longer. The longer the spray remains in contact with the leaves, the better it will work. This will be an ongoing battle if your ivy infestation is come from the neighbor’s yard. Since it is a vine, it will always try to come back so repeat applications will be required. Make sure to read and follow the directions on the package.