Matt from Buda, Tx writes
I believe I have a bentgrass problem in my bermuda, and it looks like tenacity is the only bentgrass killer. On its label, it doesn't say bermuda is one of its turf grasses. Any help would be great. I have a couple pictures of my specific bentgrass.
Tenacity can only be used on bermudagrass that is still dormant when trying to remove weeds or target grasses from it. If the bermuda is only semi dormant you will see whitening and damage to the bermuda. There are a few other potential options for you to remove the bentgrass from your bermuda lawn, though. Drive XLR8 is listed to control creeping bentgrass and has multiple rate options for it in bermuda lawns. You will need to use a Non Ionic Surfactant with the Drive XLR8 to acheive the best results. Revolver Herbicide is specifically labeled to target bentgrass as well in warm season turfs. Bonide Weed Beater Ultra is safe for use on bermuda and other turf species and specifically says to not use it on bentgrass. So while bentgrass is not listed as a target weed it makes it clear using it on bentgrass would be harmful to it.
Answer last updated on: 03/10/2017