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Originally Posted by Michigan Farmer
Recognition seems to be a growth inhibiter and makes no claim to control Wild Bermuda grass and only suppression of Torpedo Grass which is very similar to Wild Bermuda. Fusilate II is not labeled for residential lawns from what I can tell. Having said that I've been using it for several years and so you know it is not a one and done application. You'll get suppression and eventually control by applying it every 21 to 30 days for two to three years while not in dormancy and adding a surfactant to it. I like to use Mentholated Seed Oil.
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Recognition herbicide: A powerful, flexible tool for St. Augustinegrass and zoysiagrass lawns | GreenCast | Syngenta They point out that the Recognition includes a "safener" ingredient, which I'm assuming is what allows this new combo to be successful for the purpose.
I fully expect the wild Bermuda to continue to show back up, but if I can regularly "control" it, then I'd be a happy camper.
I suspect that these chemicals being "regulated" is likely related to their maybe not being labeled for residential lawns. All new stuff for me, but I did get a response from my SiteOne email. Sez I have to go to the store to make my inquiry. :-) The wifey has the car today, so maybe tomorrow - or maybe I'll hear back soon from the Sumter extension folks.
BTW, the YouTube guy *did* add a surfactant to his tank mix. Let me see if I can find that video again. Found it. It also answers some questions that others have raised.
https://www.youtube.com/watch?v=C3uh2C8ND_0
Good info. Thanks. Definitely sounds like you know your stuff. I shall attempt to keep learning.