Pumpkin Spray Programs Sould Include a Fungicide for Downy Mildew

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu

Pumpkin growers that still have healthy vines, and fruit that still needs sizing, should be adding a fungicide for downy mildew at this time, if you have not done so already. Downy mildew has not been as aggressive on pumpkin as it has been on cucumbers, but it has been diagnosed on pumpkin in the Salisbury, MD vicinity. Apply Previcur Flex, Ranman, Tanos, or Presidio plus a protectant fungicide such as chlorothalonil for downy mildew control.