By Ashley Robinson Gummy stem blight (GSB), also known as black rot, is a common issue for watermelon producers in the Southeast. Didymella bryoniae, the fungus that causes GSB, favors warm and humid weather, leaving the Southeast growing region susceptible to the disease’s devastating effects. If not managed well, it can cause significant yield loss for growers. RECENT ISSUES Over …
Managing Cucurbit Diseases
By Ernie Neff University of Florida Institute of Food and Agricultural Sciences doctoral student Andrew Shirley suggested ways to control three cucurbit diseases at Florida Ag Expo in November. Shirley is pursuing his degree at the Gulf Coast Research and Education Center, site of the Expo. He shares highlights of his presentation in an interview with Southeast AgNet’s Tacy Callies. …
Better Cucumber and Watermelon Varieties Coming Soon
By Karla Arboleda Researchers at North Carolina State University (NC State) are working to release new cucumber and watermelon varieties. Due to persistent issues affecting cucurbits, experts at NC State are aiming to improve cucumber and watermelon varieties. Todd Wehner, a horticultural science professor at NC State, is working to provide cucurbits that are resistant to downy mildew and gummy …
USDA Grants $3.2 Million Toward Whitefly Research
By Karla Arboleda After years of growers experiencing problems with whiteflies in vegetable crops, the U.S. Department of Agriculture (USDA) will fund $3.2 million toward whitefly research. The grant will fund research at the University of Georgia (UGA), Fort Valley State University and the USDA Agricultural Research Service in South Carolina. Bhabesh Dutta, a vegetable Extension pathologist at UGA-Tifton, shared …
Vegetable and Specialty Crop Seminars Cover Crucial Issues
By Ashley Robinson Last year, AgNet Media incorporated vegetable and specialty crop (VSC) seminars into the 28-year-old Citrus Expo. The change was met with positive feedback from both growers and industry members. Therefore, AgNet Media decided to expand that side of the program and debut the Vegetable and Specialty Crop Expo (VSC Expo) this year, being held in conjunction with …
EPA Registers Long-Term Uses of Sulfoxaflor While Ensuring Strong Pollinator Protection
Registration provides benefits to growers and is supported by strong science that shows minimal risks for pollinators. The U.S. Environmental Protection Agency (EPA) is issuing a long-term approval for the insecticide sulfoxaflor— an effective tool to control challenging pests with fewer environmental impacts. After conducting an extensive risk analysis, including the review of one of the agency’s largest datasets on …
Whitefly Management Methods
By Hugh Smith The silverleaf whitefly (Bemisia tabaci) transmits tomato yellow leaf curl virus in tomatoes. The pest also transmits three viruses to cucurbits, including squash vein yellowing virus, which causes watermelon vine decline. In addition to virus transmission and contamination, the silverleaf whitefly induces irregular ripening in tomato and the silverleafing in squash that gives it its common name. …
Growing Multiple Crops on the Same Plastic Mulch
By Nathan Boyd Vegetable growers throughout the Southeast face intensive economic pressure from foreign competition, volatile markets and increased production costs. Alternative production systems are needed that reduce input costs and increase economic return. One potential approach is to grow more than one crop on the same plastic mulch. The vast majority of horticultural crops in the Southeast are grown …
Roundup Presents Challenges for Growers
By Alison DeLoach A well-known herbicide for growers, glyphosphate (Roundup), can cause harm to crops if not properly applied. According to Stanly Culpepper, weed scientist with the University of Georgia, when applied too close to planting or when the application rate is too high, Roundup can severely damage a plant. When looking at the labels for Roundup PowerMAX II, there …
Panhandle Growers See Major Losses from Michael
By Breanna Kendrick Hurricane Michael hit the Florida Panhandle hard. Farmers across this region have lost some, if not all, of their crops. Josh Freeman, associate professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences North Florida Research and Education Center in Quincy, surveyed the area of Gadsden and Jackson counties for crop damages. …