Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Late blight caused by the fungus-like organism, Phytophthora infestans, was confirmed this week in DE, eastern shore VA, and the South Fork on Long Island, NY on potato. See the Potato Disease Advisory. Late… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Basil downy mildew has been reported in two locations in Maryland this week. It was confirmed in Ellicott City, and we received a separate report in Calvert County.… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu and Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Downy mildew was confirmed on seeded cucumbers in Cumberland County, NJ near the city of Vineland. There were no reported downy… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Leaf cupping and rolling in vegetables can be caused by virus diseases, aphid infestations, herbicides and growth regulators. However, late spring and early summer is the time of the year that we… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Melons Continue to scout all melons for aphids, cucumber beetles, and spider mites. As a general guideline, a treatment should be considered when you find 20-30% of the plants infested with 1-2 mites per… Continue Reading
