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News for citrus growers around the globe
Citrus Extension agent Steve Futch answers questions following a grower forum in Arcadia on October 27. Growers discussed production, bactericides for HLB and much more. The forum opened with one grower saying he doesn’t know how much longer he can keep going. Another reported per-acre orange production of 450 to 500 boxes in some blocks – a superb level in …
Another early-detection method being developed works by smelling huanglongbing infections in trees. This method detects the different scents plants give off. Researchers at the University of California, Davis have created a test that could lead to advances in fighting huanglongbing (HLB) disease in citrus. Researcher and professor of mechanical and aerospace engineering, Christina Davis, said the test looks for a …
By Mark A. Ritenour, Jiuxu Zhang and Megan M. Dewdney Decay of fresh citrus fruit is most often caused by fungal pathogens that grow and develop in the hot and wet conditions typical in Florida. While green and blue molds (Penicillium digitatum and Penicillium italicum) and sour rot (Galactomyces citri-aurantii) are the most common postharvest citrus diseases worldwide, the subtropical …
Citrus grower taxes supporting Florida Department of Citrus (FDOC) programs this season will be 7 cents per box for processed oranges and fresh grapefruit – the two most utilized fruits. Those historically low rates were proposed early in 2016 by 12 large Florida citrus growers and adopted by the Florida Citrus Commission (FCC) on October 26. Other per-box grower assessments …
The November issue of Citrus Industry magazine will be available to readers soon. It features the U.S. Department of Agriculture’s initial citrus crop forecast for the 2016–17 season. The article includes coverage of the grower gathering at the Dark Hammock Legacy Ranch and industry reactions to the 70 million orange boxes figure. Two features in this issue focus on citrus …
Central Florida citrus grower Vic Story tells why he’s participating in grower nutrition trials being conducted by University of Florida researcher Tripti Vashisth, and urges other growers to participate. “We need to look at some of the varying programs that the university has proposed in practical, out-in-the-grove situations over a period of time,” Story says. “I’m measuring these programs against …
Another early detection and screening process for HLB has been developed at the University of California, Davis. Cristina Davis, professor of mechanical and aerospace engineering, is using volatile organic compounds (VOCs) as indicators of disease in trees. VOCs are odors that are emitted by all living things. These odors can be very meaningful, because they are distinctively different between a …
HLB pre-screening through analyzing plant metabolism holds potential to be a relatively inexpensive option for growers. Caroline Slupsky, professor in the Department of Nutrition and Food Science and the Department of Technology at the University of California, Davis, is looking at the metabolism of citrus trees and analyzing changes as indicators of stress and disease. Plants’ metabolic pathways change in …
By Reza Ehsani, Megan Dewdney and Evan Johnson In the last two years, many growers looked at thermotherapy as a way of keeping HLB-affected citrus trees in production until a more permanent solution could be developed. It has been shown that thermotherapy can kill HLB-causing bacteria under controlled environments. But the exact time and temperature is not known, and it …
The citrus black spot (CBS) that emerged in Florida in 2010 apparently remains confined to Collier and Hendry counties, except for a single find in Polk County in 2013. “There’s a quarantine within those two counties (Collier and Hendry),” University of Florida researcher Jeff Rollins said in a Citrus Expo presentation. “The quarantine extends a little bit into Lee County, …
By Bill Castle University of Florida professor emeritus During a recent breakfast with an industry friend, I asked: What is your outlook on the future of our industry? His positive reply was direct and immediate. He expanded on that reply by revealing a realistic confidence in the ability of growers to plant and grow young trees as supported by his …
Citrus grower Paul Fabry discusses grove practices that led to a huge increase in production in a newly acquired Basinger grove in just a few seasons. The grove has approximately 750 net acres. “Two years ago when we first got the grove, it was in a shape that needed some renovation and I was advised by several prominent industry leaders …
The great Richard Petty was at PMA’s Fresh Summit for a partnership that promotes Fresh From Florida. Fresh From Florida has joined forces with “The King” to get Florida products in front of more consumers. Petty and Florida Commissioner of Agriculture Adam Putnam stopped by AgNet Media’s booth at the summit. Sponsored Content5 Facts About Fire Ants and How to …
University of Florida researcher Jude Grosser focused on root nutrition during the Citrus Nutrition Day at the Citrus Research and Education Center on October 11. In this report, he says citrus roots impacted by HLB are missing the nutrients they need and discusses possible solutions, including what he calls “hybrid nutrition programs.” “We’ve gotten kind of too focused on what’s …
A bit of weight was lifted off of Florida citrus growers’ shoulders after hearing the U.S. Department of Agriculture’s initial 2016–17 Florida citrus crop forecast that calls for 70 million boxes of oranges. Citrus industry members gathered at Florida Citrus Mutual’s Political Action Committee Clay Shoot and Crop Estimate Luncheon to hear the live forecast from Southeast AgNet. The event, …
Every year, the Citrus Expo seminar program provides a wealth of new research information for growers. Thanks to the University of Florida/Institute of Food and Agricultural Sciences, much of the information from the 2016 Citrus Expo program can now be found online. PowerPoint presentations from nearly all the speakers can be found on the Citrus Expo website made available through …
Candi Erick, agricultural statistics administrator with the Florida Department of Agriculture and Consumer Services’ Florida Agricultural Statistics Service, issued the initial citrus crop forecast of the 2016-17 crop season. Florida non-Valencia oranges are forecast at 34 million boxes, down from 36.1 million boxes at the end of the 2015-16 season. Valencia oranges were forecast at 36 million boxes, down from …
Timing of fungicide sprays is the key to controlling the postbloom fruit drop (PFD) that caused many Florida citrus growers severe problems this year. That was a central message that University of Florida researcher Natalia Peres delivered at Citrus Expo this summer. In this interview, Peres discusses the keys to proper spray timing, starting with bloom. Peres says longer bloom …
Agriculture and natural resources interests are invited to come home to the University of Florida Institute of Food and Agricultural Sciences and see some informative exhibits during Agriculture and Gardening Day Oct. 15, outside The Swamp. “Come home” because it’s homecoming weekend at UF, and the Gators are playing the Missouri Tigers. People affiliated with agriculture and natural resources have …
Heavy winds from Hurricane Matthew Friday caused some fruit drop in the Indian River citrus area. But the amount of drop was “not catastrophic,” said Florida Citrus Mutual spokesman Andrew Meadows. “The fact that it stayed offshore helped tremendously,” Meadows said. Some Indian River growers and packers told Mutual that in addition to fruit drop, there will likely be some …
