“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.”
How to Take a Photo for Crop Diagnostics With the current push to work remotely, using pictures to quickly address production questions has a lot of appeal and utility but the images must be of high quality. Continue Reading Cornell Commercial Vegetable Guidelines Available The 2020 Cornell Integrated Crop and Pest Management Guidelines for Commercial […]
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. Continue Reading
Our guest is Meg McGrath, the Mildew Maven of Cornell. She will be joining us this week to talk all about powdery mildew in vine crops! Meg has spent a career learning how pathogens survive between crops, investigating factors that favor disease development, evaluating fungicides and resistant varieties, developing scouting protocols and action thresholds for timing the initiation of fungicide applications after disease detection.
“Cucurbit downy mildew is a devastating disease in central and eastern United States as well as globally. Cucurbit downy mildew can cause severe losses. It is caused by Pseudoperonospora cubensis, which is an oomycete pathogen, otherwise known as a water mold.” Continue Reading
Cornell University’s Long Island Horticultural Research and Extension Center added a new photo gallery of Gummy stem blight and black rot of cucurbits. Frequent rain and overhead irrigation done when foliage won’t dry promptly (such as when irrigation ends after sunset) promote disease development. Infection occurs when warm (64-82 C), with 75-77 being optimal. Continue […]
Cornell University’s Long Island Horticultural Research and Extension Center added a new photo gallery of Angular leaf spot on cucurbits. “Warm humid conditions with frequent rain are favorable for development of angular leaf spot. Typical of bacterial pathogens, this one is dispersed primarily by splashing water.” Continue Reading
38th Annual Organic Farming and Gardening Conference