LaGrange Daily News Materials that contain the active ingredients myclobutanil (Immunox), chlorothalonil (Daconil), mancozeb, or other recommended fungicides are most effective when applied prior to or at the first evidence of disease symptoms. Multiple applications may ...
Cincinnati.com Use fungicides containing active ingredients such as chlorothalonil, mancozeb, thiophanate-methyl, propiconazole , maneb, fixed copper, or Bordeaux mixture. These chemicals are protectants and therefore must be applied before infection occurs.
