Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Research on pollenizers for seedless watermelon production in several production regions including Delmarva, Georgia, and Indiana have shown some interesting results. The bottom line is that pollenizer selection can be as important for… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu I have been receiving reports of severe watermelon Fusarium wilt from states south of us. A small part of the increase has been due to infected transplants. However,… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Bacterial fruit blotch (BFB) BFB of watermelon, which is caused by the bacterium Acidovorax avenae subsp. citrulli, produces large olive green to brown water-soaked lesions on fruit, making… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu and Emmalea Ernest, Extension Associate – Vegetable Crops; emmalea@udel.edu Production changes over the past decade have resulted in increasing levels of watermelon Fusarium wilt in Delaware and Maryland.… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu The fungal diseases gummy stem blight, Alternaria leaf blight, and anthracnose can be introduced into the greenhouse on watermelon seed or through inoculum from a previous crop. To… Continue Reading
