Gordon's Ornamec 170 Grass Herbicide, 32 Ounces

This product, Gordon's Ornamec 170 Grass Herbicide, worked really well to control the bermudagrass in my coastal Maryland (Zone 5) lawn, which is mostly tall fescue in the sun and Black Beauty in the shade. It doesn't seem to harm the desirable grasses. I had a 10-foot bermudagrass-infested patch that was resistant to the usual Spectracide Weed Stop for Lawns or similar products; despite repeated applications the bermudagrass seemed to shrug it off. This product is not an instant kill - don't expect the bermudagrass to die the next day. It took a couple weeks to really see results. But after two growing seasons, that patch is finally totally gone. I added a surfactant when I mixed it, because it looked like the as-directed mix just rolled off the grass leaves, and it needs to coat them so it's absorbed. I used the "Southern Ag Surfactant for Herbicides Non-Ionic" and it helped.

Simply put. It works. Have Bermuda grass? Bermuda grass is horrible and extremely hard to get rid of for good. Want to increase your chances of eradicating Bermuda grass? Best way to get rid of this stuff permanently is to use a hard metal teeth rake first. Rake the heck out of the area where Bermuda grass is. Hit down to the dirt with the teeth of the rake. You will see all the Bermuda grass pulling up vertical exposing the dirt and deep vines. Do this for the whole area and also do 3-4 feet around the area ya think it stops. Most likely you will still be pulling up vines. When ya finally get to where there is no more. Rake up all the loose stuff and throw in a trash can. All the remaining Bermuda grass that is standing above ground spray it all down very good. I used 2 ounces per gallon and a surfactant (a must so it makes the poison stick to the vines/leaves). Bermuda grass roots can go as 6 feet down in the ground. Average is about 6-8 inches. So its very hard to get to the roots, which is why you have to kill this stuff with poison through absorption of the leaves. The vines can travel just under the surface dirt for 6-12 feet no problem. I was pulling vines up that were 8 foot long into areas I didn't think I had Bermuda grass. This is how this stuff spreads so quickly. Soaked the whole area and was able to get to the vines and leaves closest to the ground now that it was pulled up off the ground. This stuff is so thick and tight nit at ground level its hard to reach it with a spray if you don’t do what I said above. Plus this increase your chances of eradication. Once it all turns brown. Pull it all up. Trash it. Spray the area again. Wait a few weeks. Till and plant grass seed. Works perfect. If you find this review helpful please click helpful below. Thanks

Seemed to have killed all the bermuda grass on top. After one application, it deadened some of it, so after 30 days, I reapplied and it seemed to have a great job of killing it without killing my bluegrass. I can't give it 5 stars because I don't know if it killed the roots or not until next growing season. FYI, has a very, very strong smell similar to gasoline.

We've had bermuda grass in our regular grass for over a decade. It's slowly invaded our lawn, flower beds, and shrubs, a couple feet per year. I got this product a while back, but was scared to go all out with it because we have cats who like to eat this grass for their digestion. But we'd use it in certain areas and cover with plastic to keep them off, and we had success in those spots. Well, this year, we decided to take a different approach. We started spraying the areas in the spring BEFORE the grass got green and looked yummy for the cats. Haha. Consequently, the bermuda grass NEVER (mostly) got green. We've been spraying the affected areas every two weeks and just put down the third application today. It is very effectively managing the grass. Our regular grass is thriving and filling in thicker, while the Bermuda grass areas are 90% dead with 10% struggling to stay alive... but those areas aren't pushing out long shoots. They're only a couple inches tall. I saw a video online where someone used this stuff... they killed of 90% of their yard that was invaded... they reseeded the lawn... and then they said each year they'd see 5% of the bermuda try to come back, but he just treated it like any other weed in the lawn and sprayed the affected areas. I think that's how we're going to proceed. We'll keep treating the areas this summer... this fall, we'll put down new grass... and then going forward we'll treat as we see it popping up. I honestly don't know if we'll ever get rid of it completely, but I can handle the minimal inconvenience. It's better than what we've had up until now. Also, we've not experienced any negative effects on other plants and flowers, so that's been comforting. Good luck with your battle with this terrible grass!

Stuff is great - just be sure you follow the directions and apply it in regularly scheduled applications. One application will not do it, it needs regular applications over time to be effective.

Worse than useless. As previously mentioned by others, it does the opposite of what's needed. Purchased to kill Bermuda grass and crabgrass in tall fescue. Totally killed the desired tall fescue, temporarily stunted to the Bermuda grass, and left the crabgrass totally healthy.

Follow directions! Killed my fescue!

My neighbors weed encroach my shrub bed throughout the year in Fl. This stuff works without harming my plants,it does take a few scheduled applications.