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When should you put out pre emergents?

Discussion in 'Pesticide & Herbicide Application' started by dirtman, Mar 3, 2004.

  1. dirtman

    dirtman LawnSite Member
    Messages: 5

    Does it matter when you put out pre emergents. Can i put them out now or do i need to wait until april or may?
    Also what is the best pre and post emergent for the money.
    Thanks:blob3:
     
  2. Fvstringpicker

    Fvstringpicker LawnSite Fanatic
    Messages: 7,646

    It goes done before the subject weeds emerge. I treat fall for winter weeds, early spring for spring weeds. I use post emergent /spot spraying after that.
     
  3. vegomatic40

    vegomatic40 LawnSite Senior Member
    from 6
    Messages: 406

    Soil temps in Mid-Tenn. are rising fast. Put out pre-emergent asap. Soil temps are the critical factor. If it reaches about 52 degrees for a week or so crab will germinate.
     

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