Killing giant ragweed

Discussion in 'HortForum' started by dark lord qixter, Sep 8, 2012.

  1. dark lord qixter

    dark lord qixter Member

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    Location:
    Denton texas usa
    how do i kill giant ragweed(Ambrosia trifida)?
     
  2. saltcedar

    saltcedar Rising Contributor 10 Years

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    Location:
    Austin, Tx
    They're easy enough to pull out where not wanted and being annuals they'll
    die after the first hard freeze. Best to use a pre-emergent herbicide to prevent
    recurrences next year.
     

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