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 …
Downy Mildew Alert: Alabama Cucurbit Growers Be Proactive in Management
By Clint Thompson Florida’s recent diagnosis of downy mildew in lettuce should have Alabama growers on alert about the disease’s eventual movement northward. Ed Sikora, professor and Extension plant pathologist in the Department of Entomology and Plant Pathology at Auburn University, discusses why producers should be wary of this disease. “With these moist conditions, that’ll build up the winter nursery …
Disease Alert: Cucurbit Growers Be Mindful of Powdery Mildew
By Clint Thompson Not all plant diseases need moisture to become problematic. Some cucurbit farmers in Georgia are finding that out with powdery mildew. The extended dry period in Georgia has allowed powdery mildew to flourish. Bhabesh Dutta, University of Georgia Cooperative Extension plant pathologist, said there is a moderate level of concern among producers, though there are effective fungicides …
Analyzing Anthracnose: Cucurbit Disease a Major Issue for Growers
By Clint Thompson One disease that Southeast cucurbit producers need to have on their radar this upcoming season is anthracnose. It is rapidly becoming a major issue for growers, says Bhabesh Dutta, University of Georgia (UGA) Cooperative Extension vegetable plant pathologist. “It’s now a major problem after Pcap (phytophthora capsici). It has been an emerging issue in our cucurbits including …
Specialty Crop Grower Magazine: Tracking Viral Diseases in Cucurbit Crops
By Frank Giles Viral disease in cucurbit crops is a major problem worldwide. In the United States, new viruses are identified regularly that affect important specialty crops. This has become such a problem that the Emerging Viruses in Cucurbits Working Group (EVCWG) was established in March 2022. The group was formed after a discussion during the Plant Health event hosted …
Whitefly Research: UGA Vegetable Specialist Discusses Management Option for Growers
By Clint Thompson Whiteflies are almost a guarantee for South Georgia vegetable producers in the fall. Growers need protection against whitefly-transmitted viruses which can devastate cucurbits. Ted McAvoy, University of Georgia (UGA) Extension vegetable specialist, is researching multiple cucurbit crops to see which ones are more tolerant of the different viruses that frequently accompany whitefly pressure. “Since about 2017, we’ve …
Fungicide Sensitivity of Cucurbit Powdery Mildew in Charleston, SC
Clemson Plant Pathologist Tony Keinath believes Gatten, Vivando, Quintec and Procure fungicides provide the best management options for cucurbit producers managing powdery mildew. According to the The South Carolina Grower, a fungicide sensitivity bioassay was conducted between June 1 and June 10 to determine which fungicides can be used against the current outbreak of powdery mildew on squash, watermelon and …
Protecting Against ‘Wildfire’: Melon Growers Should Be Wary of Downy Mildew
By Clint Thompson Recent rainfall events in North Florida have watermelon producers on high alert from disease pressure building up. Bob Hochmuth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Regional Specialized Extension agent in Live Oak, Florida, cautions growers against downy mildew disease as harvests continue across the region. “I expect that the weather pattern here is …
Cucurbit Downy Mildew Found in South Carolina
First it was Florida. Then Georgia. Now South Carolina. Downy mildew disease has moved its way up the Southeast region. According to the South Carolina Grower, cucurbit downy mildew was identified in South Carolina on May 12. The identification came from butternut squash grown in a sentinel plot at the Coastal Research and Education Center in Charleston, South Carolina. Vegetable …
Downy Mildew Detected in Georgia Cucurbits
Downy mildew disease of cucurbits has been observed in Georgia, according to the University of Georgia (UGA) Extension Vegetable Blog. The detection was made in a cucumber field in Brooks County last week. These observations indicate that the inoculum of downy mildew is currently in southern Georgia counties and are under favorable conditions for a potential outbreak. “I would suggest …