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christie_sw_mo

Getting rid of Bermuda Grass

christie_sw_mo
14 years ago

I have a plan for getting rid of my Bermuda grass in a big enough area to put in a couple raised beds for veggies. I'm not sure it will work but I hope so. I know from experience that covering it with newspapers or cardboard, then mulch or soil won't kill it. I bet even a couple of feet of heavy soil wouldn't smother it because that's what it's used to.

I think I can get rid of it with Round-Up if I spray it repeatedly all summer. The trick is to let it grow TALL before you spray it (more surface area). If you spray it when it's short, it doesn't absorb as much. It has to be sprayed on a hot sunny day. Round-Up works better with sun and the Bermuda will be actively growing. It has no affect on dormant plants.

I've thought about putting a sheet of plywood at the bottom of my raised beds but the soil wouldn't drain and I'd have to make the beds deeper.

I don't know the best way to kill the weed seeds that are there. I'm afraid when I pull/dig up veggies, I'll be pulling up seeds to the surface and I don't want to get the Bermuda grass started all over again. Their seeds stay viable for many years. I've been looking on the web and I think I might try putting clear plastic over the area in late summer to kill seeds but from what I've read, the heat it generates only kills some types of seed.

Should I just move?

Comments (12)

  • ceresone
    14 years ago

    LOL, That would be my suggestion!!
    I think we're going to have to learn to co-exist with BERMUDA GRASS!! Seriously, others may tell you--Oh, this will work--or that will work--been there--done that! Best advice I have ever been given is just to try to contain it in and around the beds.
    The best luck I've had, is with POAST-its made especially to kill bermuda-not perfect--but keep it on hand for the times you see it creeping back--for the next 50 years.

  • gldno1
    14 years ago

    ceresone, I think you have it figured out! My dad used to say to salt it, dig it up, burn it, dig a hold bury the ashes, then pile cement on top and that might (might) kill it.

    Christie, some use a perforated landscape cloth on the bottom or an old piece of carpet or throw rugs. Good luck.
    Let us know what works.

    Can you find a spot without it? That would be the best and then try to keep it out. I have heard of driving cedar shakes down deeply around the edges.

    I just go around and regularly pull it out from the edges of the beds and put it into the trash. I also spray the edges with gly-4.

    I also want to try the corn gluten meal this year to prevent seed emergence.

  • helenh
    14 years ago

    I have it in my day lilies and I think I will have to dig them up and pull it out of them and replant. I don't do that so it is a losing battle. My yard is too shady and outside my yard where I have expanded has bermuda. I threw bermuda hay over the fence and was happy when it grew because someone I know said it was summer pasture when the fescus was tough. My cows never did like it and ate it last.

    I think round up will kill it, but even a little surviving piece will start it up again. I don't think you can do it once and forget it. Once you get a cleared spot you have to edge it with round up because it will keep creeping in.

    I planted tomatoes in bermuda infested ground last year. I pulled what I could see but it came up again. Tomatoes will get ahead of it. Shade is its biggest enemy.

  • ceresone
    14 years ago

    I have bermuda that survives everything!
    Landscape cloth-that was sure fun to try to remove it, with the bermuda growing thru it everywhere.
    Black plastic? Four years--I removed it---white bermuda--heading for the edges of the plastic!
    Roundup? gave it a belly ache for a week, revived-sprayed again--didnt phase it the second time.
    I did use the Poast on a bed that had various flowers--all my poppies, Iris, clematis--tryed it over the top, as it said--forgot it--month later--IT WAS DEAD-and didnt harm flowers. But--I'd still be cautious around flowers.
    Glenda, I love the corn gluten meal--my onions didnt have a weed for 3 months--which is when I was supposed to have re-applied it. Everyone remember tho--don't put it where you WANT seeds to come up.
    Worse of all?? my horses don't even like it!

  • jessaka
    14 years ago

    do you have to mix the cornmeal with the soil or just put on top? i used it on our lawn but weeds still came up. at least it helped the fungi some. this year we are letting some weeds grow in our lawn. can't fight them all.

  • gldno1
    14 years ago

    Ceresone,

    We used it as a mix in our dairy ration when we milked. I
    hope they will sell it to me in bags. Just found out they are not the same product. Did you use feed grade or the special (under copyright by IA State) plant herbicide grade. There is quite a difference in price. I can get it at MFA for $8.00 or so a Cwt. I see the other is about $25 a 25-lb bag which means I will not be using it! Feed is 24% protein, other 60%. I don't know about the nitrogen level.

  • ceresone
    14 years ago

    Glenda, I bought mine at the feed store, was about 8.00, I think.
    If there are already weeds, it wont stop them from coming up--all it does it stop the SEEDS from germinating. I just roughed the top surface, enough to push my onion plants in a bit with my finger--then sprinkled the meal over the entire bed. Remember, it needs to be reapplied, I think they said, in about 3 months.
    Big thing to remember--it stops ALL seeds from germinating-it cant tell the difference in a vegetable--or weed.

  • helenh
    14 years ago

    Ceresone, at the feed store you ask for corn gluten meal or does it have another name?

  • proudgm_03
    14 years ago

    Didn't know I had bermuda grass until I googled a pic. Now I have something else to worry about besides creeping charlie!

  • ceresone
    14 years ago

    Thats what I asked for,Helen. Theres 2 feed stores in town, one refused to sell it to me, as they only sold huge amounts to farmers for feed additive, the other was fascinated as I explaned the use, and checked the "Preen" on their shelves for main ingredient.

  • gldno1
    14 years ago

    jessaka, we are talking corn gluten meal; not corn meal. This is a by product of the milling process for something else.

    My guys at the mill said they will bag it for me. We bought tons of dairy from them a few years back.

  • helenh
    14 years ago

    The good thing about it (and I only know from TV)is that it rots and becomes fertilizer. That limits its effective time but it is safe and won't permanently contaminate the soil.

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