Cucurbit disease management resources from the Cornell Vegetable program including content from the Long Island Horticultural Research and Extension Center Vegetable Pathology website and the former Vegetable MD Online website have been moved to a new website.
Cornell Vegetable Program
Great Lakes Expo 2022 session handouts
Cucurbit downy mildew infects cucumber, watermelon, cantaloupe, honeydew, zucchini, gourd, summer and winter squash and pumpkin. Powdery mildew is best managed with an integrated program including both management tools (resistant varieties and fungicides) that is based on efficacy results from research.
New photo gallery: Cercospora leaf spot of Cucumber
The Long Island Horticultural Research and Extension center’s Vegetable Pathology group added a new photo gallery of Cercospora leaf spot of Cucumber.
Virus Diseases of Cucurbits | Cornell Vegetables
Viruses are among the more common causes of diseases affecting cucurbits in New York. These diseases result in losses through reduction in growth and yield and are responsible for distortion and mottling of fruit, making the product unmarketable.
2021 Empire State Producers Expo
The New York State Vegetable Growers Association and Cornell Cooperative Extension announced they are transforming the annual Becker Forum and Empire State Producers Expo into a virtual conference.
New photo gallery: Downy mildew of cucumber and other cucurbit plants | Cornell Extension
“This disease can occur anywhere throughout the eastern US, even in a garden with just one cucumber plant and no past occurrences. This is because the pathogen spreads via wind-dispersed spores that can be moved long distances and be deposited by chance anywhere.”
Resources for Vegetable Producers from Cornell Cooperative Extension
The Cornell vegetable program published information on “How to Take a Photo for Crop Diagnostics” and the “2020 Cornell Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production” are now available.
New photo gallery: Pythium fruit rot in Cucurbits | Cornell Vegetable Pathology
Fruit rot caused by Pythium species can be confused for that caused by Phytophthora capsici, another oomycete pathogen, because they both produce white growth on affected fruit.