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Crabgrass turning red/purple

Discussion in 'Pesticide & Herbicide Application' started by 94SupraTT, Jun 23, 2008.

  1. 94SupraTT

    94SupraTT LawnSite Member
    Posts: 17

    How long does it take to die and how often should I spray it? I've sprayed some crabgrass in my yard and its dying slowly. I've sprayed it for a second time about 1 week after my initial spraying. I used WeedStop from Spectracide. I thought it had MSMA in it however I don't remember. I know MSMA will cause my bermuda to yellow however I did not mind that I just want the crabgrass gone in a hurry. I might try Drive though if this Weedstop doesn't work.
  2. pinto n mwr

    pinto n mwr LawnSite Senior Member
    from gr8, mn
    Posts: 422

    crabgrass red or purple, that means it is dying. sometimes it turns yellow instead, but in any case it's dead. The only quicker way is to pul it by hand

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