Spraying after a rain

Discussion in 'Pesticide & Herbicide Application' started by JACIRR, Jun 9, 2013.

  1. JACIRR

    JACIRR LawnSite Member
    from MN
    Posts: 67

    I am aware of spraying before a rain, but what about after a rain. What does everyone do about spraying after a rain? Wait until dry, or spray when wet?
     
  2. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 712

    Let it dry... read the label usually it says
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  3. jbturf

    jbturf LawnSite Bronze Member
    Posts: 1,406

    I think ull get a lot of different opinions on this, I find after rain or high humidity the pores are open an the weed absorbs the herbicide quickly
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  4. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Posts: 4,541

    :clapping:
    I get a faster kill after rain or heavy dew vs grass being dry
     
  5. JACIRR

    JACIRR LawnSite Member
    from MN
    Posts: 67

    The label does not state anything about spraying when wet or after rain. Only restrictions about spraying before a rain or irrigation cycle.
     
  6. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 11,785

    Best weed control occurs at high humidity. If the herbicide drys on the weed surface, it crystalizes. After that, there can be no more absorption of the herbicide.
    My opinion...OK to spray after rain.
     
  7. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 712

     
  8. ReddensLawnCare

    ReddensLawnCare LawnSite Bronze Member
    Posts: 1,652

    My best kills have always been post rainfall event
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  9. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Posts: 8,847

    I would spray after rain only if the chance to rain again soon was nill.
     
  10. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 712

    And how soon are you guys talking after rain? Ground still wet? Grass wet?
    Posted via Mobile Device
     

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