North Florida and South Georgia watermelon producers must be aware that fusarium wilt disease is showing up across North Florida.
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By Clint Thompson Bob Hochmuth , University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Regional Specialized Extension agent in Live Oak, Florida, said in his weekly email that the disease has also been observed in UF/IFAS research trials. Symptoms include yellowing and wilting of leaves; vine decline and necrosis; vascular discoloration; and patchy plant death across the field. “This is the time of the growing season where we typically begin to see the plant collapse. That plant collapse comes with the early onset of fruit set,” Hochmuth said. “When the plants are young and only vines, if they’ve got a partially clogged water conducting vessel system, they still might be able to pick enough water to get through to manage, but when they start getting fruit set, the plants demand a lot more water suddenly. “What it does is the capacity of the water conducting vessels is just insufficient to get the water that’s needed to the rest of the plant. That’s when you ...