Q: Why can I only use Bayfidan 3 times in a season?
A: The current CropLife fungicide resistance strategy recommends that no more than 3 Group C (DMI) fungicides are to be used in a season on grapevines. By using new chemistry early, the DMI group, including Bayfidan, can be kept for late season outbreaks given their wide export tolerances. Q: Will Bayfidan "cure" powdery mildew?
A: Bayfidan works best as a preventative treatment. This means that bayfidan should be applied on a regular schedule and will protect the plant when infection occurs. A powdery mildew epidemic can be almost impossible to manage once the disease is firmly established.
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