Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Continue to scout cucurbits for powdery mildew. Symptoms typically begin on older, lower leaves and can spread rapidly under dry, humid conditions. Control of powdery mildew begins with regular scouting for symptoms and weekly… Continue Reading
Gordon Johnson, Extension Ag Agent, Kent Co.; gcjohn@udel.edu Each year we come across pumpkin fields with poor fruit set and this year is no exception. Poor fruit set can be a major problem in pumpkin production, especially with large jack-o-lantern… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu No I am not talking about some new “value added” pumpkin variety. I am referring to pumpkin plants that appear to be normal in the field up to about the third… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Last Thursday, August 6, my pumpkin plants looked great with large green leaves and just a little powdery mildew (Fig. 1). Just a few days later and they looked horrid (Fig.… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Because of the sudden and destructive nature of cucurbit downy mildew (Pseudoperonospora cubensis), growers need to be warned about a potential outbreak of the disease in their area. In addition, fungicide applications are far… Continue Reading
