Ferti-Lome Cut Vine & Stump Killer RTU is ready to use and does not need to be diluted. Cut the vine first and apply the undiluted product to completely cover the freshly cut surface.
Ferti-Lome Cut Vine & Stump Killer RTU has a shelf life of 3 years if kept out of extreme temperatures (above 90/below freezing) and direct sunlight. If it has not been stored properly it can be ineffective, and we would recommend replacing it.
Yes, Ferti-Lome Cut vine & Stump Killer RTU has the active ingredient Triclopyr which can be used as a stump killer. As you have already mentioned, the product needs to be applied directly to the fresh cut stump in order for it to be effective.