Kelvin from Rowland, Nc writes
Image 70 DG herbicide is labeled for use on Centipede grass and does list that it can be used to aid in the control of and reduce competition from bahiagrass. Though we will say that all of our experts in our company and others that we reach out to for further advice in this field agree that removing Bahiagrass from Centipede, or vice versa, cannot be done. While some universities may have had success with certain products working in controlled environments for them, there are no products on the market that we are aware of that are labeled or proven to work for your needs. Anything that would kill the Bahiagrass would also kill the centipede as the overall DNA of the plants are too similar to selectively kill one and not the other. The best recommendation would be to spot treat the bahia with a Roundup type product and then reseed heavily with centipede to try and smother out the bahia and keep it from coming back. If you choose to use a product recommended on a university's site you are more than welcome to, and you can search by both product name and active ingredient to see what we carry that you can try. We apologize for not being able to give you the answer you were looking for, but please let us know if you have any other questions!
Answer last updated on: 09/29/2016
