bentgrass spreading

Discussion in 'Lawn Mowing' started by snap12.5, Dec 8, 2004.

  1. snap12.5

    snap12.5 LawnSite Senior Member
    from Ohio
    Posts: 288

    has anyone noticed those lighter mat like patches of grass taking over people's lawns. ive talked to trugreen and they say to use roundup several times but that does not seem to get rid of it. once bentgrass gets in your lawn it seems like you are stuck. in ohio it seems like almost everyone has these bentgrass patches forming. does anyone know how it spreads? or how to take care of it???
  2. KenH

    KenH LawnSite Bronze Member
    from CT
    Posts: 1,622

    Impossible to selectively rid a lawn of creeping bentgrass....Spreads aggressively by stolons.
  3. TClawn

    TClawn LawnSite Silver Member
    Posts: 2,036

    you have to spray it with roundup. no other method is known for killing agrostis spp. (creeping bentgrass)

    I'm gonna try salt on it later today. I have an extremly salt tolerant lawn (you can water it with ocean water) and have used salt as an herbicide for just about everything. the only thing it does not kill is nutsedge.
  4. lawnguyland

    lawnguyland LawnSite Bronze Member
    Posts: 1,108

    Bentgrass is spreading around here. Could be in the seed mix or wind blown or bird pooped onto the lawn!
    Not too sure about that salt idea though. Ever hear of "salting the earth"? It's not a good thing. Oh wait, I am sure, don't salt the lawn.
  5. red raider04

    red raider04 LawnSite Member
    Posts: 7

    it would probably be to expensive to use, but a fairly recent study was conducted that showed isoxaflutole and mesotrione applications control bentgrass spread in golf course roughs.....these are pretty restricted chemicals though. if you really want it gone, cold steel may be the only alternative if the roundup apps don't get it. what's worse is monsanto will be trying to release a roundup-ready bentgrass sometime in the not-so distant future!
  6. wmsland

    wmsland LawnSite Member
    from NE OHIO
    Posts: 127

    Are you sure that it is Bentgrass and not Nimblewill, they really resemble each other and it is almost impossible to control.
  7. TClawn

    TClawn LawnSite Silver Member
    Posts: 2,036

    yes, I've heard that it is not a good idea. but my grass (seashore paspalum), is VERY salt tolerant. as long as I don't kill the soil in the beds with salt I'm fine.
  8. Drew Gemma

    Drew Gemma LawnSite Bronze Member
    Posts: 1,510

    Ohio here bent grass yes a pain but it can be managed. Round -up 2 or 3 times then over seed in fall. Reason it is so hard is look at how it grows. It spreads from rhizomes. Plus this plant pretty much grows paralle when mowed at normal lawn heights. I have had so many customers tell me they pull it out by hand and it just keeps coming back. I tell them why and they look at me like I am crazy. Oh well the next year they pay me to get rid of it.
  9. upidstay

    upidstay LawnSite Bronze Member
    from CT
    Posts: 1,346

    Bentgrass is a royal pain. Had a customer dump me because I couldn't get rid of it in one season. (even though I warned them it would be a long battle) Try using roundup and then an acid like Scythe. Mix them both good and strong. I like to use more RU than is recomended for really tough weeds. Seems to work a little better. Let the Round Up sit for a day and then whack it with the Scythe. Will most likely have to reapply later. ALdo, a sod cutter works well too. Cut out the offending patches, overlapping a foot or so and reseed/sod. Bentgrass is almost as hard to get rid of as moles!! Good luck
  10. YardPro

    YardPro LawnSite Gold Member
    Posts: 3,563

    get the roundup quick pro.

    same benefit.
    has diquat for the fast leaf necrosis

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