Skip to Content

Chlorothalonil may be in short supply for peanut growers

Peanut Rows

There has been some talk that peanut growers may be dealing with a short supply of chlorothalonil this year for their fungicide programs.  Below are some options given by Dr. Bob Kemerait, UGA Extension Plant Pathologist, that growers may want to consider if they find that they are having difficulty getting enough chlorothalonil to treat their peanut crop.

  1.  Replace 1.5 pt/A chlorothalonil with 15 fl oz/A Elast
  2.  Replace 1.5 pt/A chlorothalonil with 10 fl oz/A Topsin/thiophanate methyl, but ONLY one time!
  3.  Replace 1.5 pt/A chlorothanil with 7.0 fl oz/A Stratego (concern about resistance management…)
  4.  Replace 1.5 pt/A chlorothalonil with 3.5 fl oz/A Absolute (concern about resistance management…)
  5.  Replace 1.5 pt/A chlorothalonil with 5.5 fl oz/A Alto (better to mix 1.0 pt/A chlorothalonil with 5.5 fl oz/A Alto, or at least SOME chlorothalonil with the Alto!)
  6.  Replace 1.5 pt/A chlorothalonil with 5.5 fl oz/A Alto + 5 fl oz/A Topsin/thiophanate methyl
  7.  Extend chlorothalonil with 1.0 pt/A chlorothalonil with 1.0 pt/A Kocide
  8.  Extend chlorothalonil with 1.0 pt/A chlorothalonil with 5.0 fl oz/A Topsin/thiophanate methyl

9.  Extend chlorothalonil with 1.0 pt/A chlorothalonil with 2.0 fl oz/A propiconazole