1. Missed the live Ask the Expert event?
    Catch up on the conversation about fertilization strategies for success with the experts at Koch Turf & Ornamental in the Fertilizer Application forum .

    Dismiss Notice


Discussion in 'Pesticide & Herbicide Application' started by n-green, Apr 25, 2007.

  1. n-green

    n-green LawnSite Senior Member
    Messages: 367

    A lot of the lawns I seeded last fall (including my own), have developed Orchardgrass. It must have been mixed into my Transition Blend. Does anyone have any experience controlling this stuff? I have a bunch of great looking lawns with clumps of light green standing an inch or two above the normal turf. Thanks!
  2. Nathan Robinson

    Nathan Robinson LawnSite Senior Member
    from 47712
    Messages: 317

    DING DING DING!!!!!!!!!!!!! the survey says "RIVERDALE CORSAIR" !
    Its available at Lesco and at Deere! Its pretty good and it works well. Nathan
  3. LawnJohn

    LawnJohn LawnSite Member
    from Atlanta
    Messages: 147

    MSMA will do the trick...If it's warm and dry, add liquid iron to the mix to prevent phytotoxicity in the spots you spray.

    You'll have to make multiple apps...Trust me....Orchardgrass is tough.

    Since you have fescue (transition blend), I would refrain from using Corsair.
  4. RobHawkins

    RobHawkins LawnSite Member
    Messages: 52

    I dug this old thread up doing a search.
    Does anyone else agree or disagree with Corsair or MSMA for controlling Orchardgrass in Tall Fescue?
    It came into my lawn with the straw I used to cover reseeded bare spots. Now I have it all over those areas.
  5. ted putnam

    ted putnam LawnSite Platinum Member
    Messages: 4,717

    I just sprayed Corsair in some Fescue 2 weeks ago at the high rate.It's doing a wonderful job on it...in my customers bermuda lawn. I wouldn't recommend spraying orchardgrass with Corsair in any Fescue you wish to keep!
  6. LawnJohn

    LawnJohn LawnSite Member
    from Atlanta
    Messages: 147

    You can also carefully spot spray with roundup.

    If you seeded with fescue, the Orchardgrass was in the seed not the straw.

    It's very common.
  7. turfsolutions

    turfsolutions LawnSite Senior Member
    Messages: 853

    I posted a thread called please id this grassy weed last year. It was orchard grass. Nasty stuff I have on about 6 properties. I sprayed q4 on it 3-4 times and nothing. The post reply's recommended msma. 10 days ago I sprayed it on my first orchard grass infested lawn. Went back the other day and the tips were red which is a good sign. I will go back to retreat and take pics to post on my old thread. Trouble is that msma is not easily available. I believe trimec plus is an option.
  8. RobHawkins

    RobHawkins LawnSite Member
    Messages: 52

    Thanks for posting that reply turfsolutions.
    I have MSMA for the Dallisgrass in my Tall Fescue. Keep us posted on your results using MSMA on Orchardgrass.
    My local Lesco/John Deere office suggested MSMA for Orchardgrass in Tall Fescue as well.

Share This Page