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How do I kill Bermuda grass in my lawn?

At some point a couple of years ago, the gardener who was working on my lawn mistakenly seeded some patchy areas with Bermuda seed. The Bermuda goes dormant in the winter and turns brown, leaving my back lawn with brown splotches in random areas and the front yard with a line of Bermuda that is slowly marching from one end to the other and taking over the lawn. I want the Bermuda out, but don't necessarily want to re-sod the entire yard to do it. Any suggestions?

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  • 1 decade ago
    Favorite Answer

    You don't say where you live or what type of grass you have in your lawn. These are both important factors in determing how you can control the bermuda. A previous poster mentioned Ornamec as a possibility however Ornamec (and another product called Fusilade that has the same active ingredient) are only labeled for the removal of bermuda grass in zoysia or tall fescue lawns (both are labelled for use in many other ornamental plantings). This means that the manufacturer only recommends that it be used on lawns with either of these species. Use on other types of lawns may result in injury or even death of the desired species and could technically be considered illegal as directions on a pesticide label are considered to be federal law. If you don't have a zoysia or tall fescue lawn, Round-Up would be the best choice but keep in mind that Round-Up will kill just about any plant it touches so if there is any of the desirable grass in the areas where you apply the Round-Up it will also be killed whereas Ornamec would only kill the bermuda assuming you have a zoysia or tall fescue lawn. In any case, as the others have said, bermuda is pretty difficult to remove manually since it can regenerate from plant parts meaning that if you don't remove the vast majority of the plants (stems, roots, stolons, etc.) it will come back so chemical control probably provides the highest chance for success. Contrary to what another poster stated, Round-Up is extremely safe in regards to both environmental and human toxicology. It binds to the soil almost immediately so the chance of run-off is low and degrades quickly so the soil residual is low. And, believe it or not, Round-Up has higher LD50 value (the dose of a substance required to kill 50% of test population) than table salt meaning it would take less table salt to kill you than Round-Up. The low soil residual will also be an advantage to you when it comes to re-seeding your lawn. You can typically re-seed within about 10 days after application with no ill effects to the seed and seedlings.

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    7 years ago

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  • flip
    Lv 5
    1 decade ago

    No, you can not eliminate bermuda grass withoout bring in say a bobcat and digging up your yard, bringing in new soil and resodding. the root system for bermuda can extend as much 4 feet down. I am afraid there is not much you can do. You can spray all of the round up you can buy, but you will never kill the root system of the bernuda

  • Anonymous
    1 decade ago

    you can try to beat it with round-up, just be sure to cut all the way around the area you want to kill, go 8 inches beyond what you can see and cut deep. an edger like your gardener uses along curbs and around beds works well. you will then have to re sod the killed areas do this in spring when the grass is starting to grow. you could also try living with it, over seed with winter rye where the bermuda grass burns out. golf courses do this to keep their greens in perfect condition. this might be best; less toxic, less work.

  • 1 decade ago

    Ornamec....

    http://forums.gardenweb.com/forums/load/weeds/msg0...

    I'm told it takes more than one application to really beat the stuff back..... I wish I could speak from experience, but I gave up... it's taking over.... and I don't have the will to do battle anymore....

  • BPTDVG
    Lv 4
    1 decade ago

    Using bermuda grass is pretty common when trying to get grass to grow quickly. Unfortunately, as you've found, it turns brown (dormant) during cooler weather.

    Roundup is really the best herbicide to use.

    As long as you follow the manufacturer's instructions, you should suffer not ill-effects.

    Because bermuda grass goes dormant in the winter, you cannot try to kill it during that time. You must wait until it is as green as the rest of your lawn. If you spray when it is dormant, you are just throwing your money away.

    Once you have killed the grass, you can remove the dead, bermuda grass, use a rake to rough up the soil, then re-seed with the type of grass you prefer.

  • Sara
    Lv 7
    1 decade ago

    Bermuda grass is hard to remove for the same reason that horseradish is hard to stop in your garden: deep roots that don't mind being cut up.

    You can dig it out of your garden, remove every little scrap of root, and still next year it will have crept in from the sides and taken hold again. The roots go very deep, beyond one shovelful of dirt.

    Some people use Round-Up, a potent poison that worries me because of its bad effects on human health (remember the fatal nerve diseases from glypsophate poisoning in the factories.)

    This grass is of value in dry areas because without liberal water and sun, it retreats underground but the roots remain alive. A drought will generally not kill it, even if it turns brown or tan.

  • hohn
    Lv 4
    5 years ago

    Ornamec

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