By Navjot Kaur and Bhabesh Dutta Watermelon anthracnose is caused by the fungal pathogen Colletotrichum orbiculare, which impacts all above-ground parts of the plant. C. orbiculare also causes anthracnose in other cucurbit crops such as cucumber, muskmelon, squash, gourd, pumpkin, cantaloupe and honeydew. The disease is favored by conditions including high humidity, rainfall, overhead irrigation and warm temperatures in the …
Time to Sample Watermelon Plants
By Clint Thompson It is time for petiole-sap testing or leaf tissue analysis for watermelon producers in North Florida. Bob Hochmuth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Regional Specialized Extension agent in Live Oak, Florida, discusses the testing service that UF/IFAS Extension provides to growers. “We collectively provide a service of going out and running petiole …
Powdery Mildew: What Cucurbit Growers Need to Know
By Clint Thompson Powdery mildew is a disease all cucurbit farmers need to be familiar with this spring season. Unlike other pathogens that need wet, rainy conditions to flourish, powdery mildew prefers a drier environment. If weather conditions turn dry this spring, powdery mildew could be most concerning, says Ed Sikora, professor and Extension plant pathologist in the Department of …
Fungicides to Manage Cercospora Leaf Spot on Beets
Cercospora leaf spot disease, the most damaging disease on beet greens and bunch beets, can be managed just as equally with either conventional or organic fungicides, according to The South Carolina Grower, Clemson plant pathologist Tony Keinath. Based on previous research in New York with processing beets, Keinath evaluated the best conventional program – Tilt alternated with Quadris – and …
Attention North Florida Watermelon Producers: Diseases Observed in Isolated Fields
Two diseases have been observed in North Florida watermelon. Bob Hochmuth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Regional Specialized Extension agent in Live Oak, Florida, reported in his weekly email that Psudomonas (angular leaf spot) and gummy stem blight have been reported, though in isolated fields. “If bacterial diseases are not a concern in your fields, …
Potential Solution for Grape Root Borers?
By Clint Thompson There could be another tool in the toolbox for producers in the management of grape root borers. Brett Blaauw, assistant professor at the University of Georgia (UGA) College of Agricultural and Environmental Sciences, has one year of research in studying entomopathogenic nematodes. He discussed the positive impact the nematodes had on the grape pests. “At least the …
Copper Applications: What to Know for North Florida Watermelon Producers
By Clint Thompson A better understanding of copper applications could provide North Florida watermelon producers a safer management plan in producing their crop this season. Mark Warren, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension agent in Levy County, wants to better educate producers about the different forms of copper and its potential impact on watermelon plants. …
Unpredictable Year for Florida Peaches
By Clint Thompson Peach production in Florida is unpredictable this year. The inconsistent weather conditions are a key reason why, explains Jose Chaparro, associate professor in the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). “The way that we accumulated chilling this year was really bizarre. I can tell you that in the Umatilla area that they’re going …
ABT Populations Low Across South Florida
Asian bean thrips (ABT) populations remain low across the South Florida region, according to the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Scouting detected ABTs at a rate of less than 0.1 per bloom across most of the monitored fields. The one exception was eastern Immokalee, where populations reached 0.5 per bloom late in the crop cycle. …
Florida Funding: Legislature Provides Boost for UF/IFAS Research
By Clint Thompson The Florida state legislature’s funding for research being conducted at University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will continue to help specialty crop producers remain sustainable. The highlight was the $8.7 million devoted to the nutrient application rate for citrus, corn, green beans, tomatoes and potatoes with the intent of adding additional crops. John …