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Below you'll see everything we could locate for your search of “rootstock”
University of Florida researcher Jude Grosser recently discussed a broad range of research aimed at mitigating the effects of HLB during an OJ Break in Sebring. Among topics he covered are the possibility of windbreaks that kill HLB-spreading Asian citrus psyllids, and progress on trees that are HLB resistant or tolerant. Regarding psyllid-killing windbreaks, he says, “We do have a …
By Mongi Zekri, Chris Oswalt, Steve Futch and Laurie Hurner The extent of cold injury to citrus depends on a number of factors, and its expression may occur over an extended period of time. Factors responsible for freeze damage include minimum temperature, duration of freezing temperatures and stage of tree acclimation. Susceptibility of trees to freezing temperatures can also be …
By Bill Castle University of Florida professor emeritus Paul Genho, a former manager of the Deseret Ranch in Osceola County, spoke about soils and food at a Florida land conference in 2015.** He noted that 90 percent of the world’s food production occurred on only four soil types: Mollisols, Alfisols, Ultisols and Oxisols. A goodly proportion of those soil types …
GAINESVILLE, Fla. — Nearly a century ago, a group of Polk County citrus growers raised about $14,000 to buy land for a research station. Now, the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) will celebrate the 100th anniversary of the Citrus Research and Education Center (Citrus REC). In 1917, UF/IFAS established the Citrus REC. Originally, only a few …
As a member of a grower panel at the recent Florida Citrus Show in Fort Pierce, nurseryman Nate Jameson shared his thoughts on coping with HLB, choosing trees for replanting and more. The owner of Brite Leaf Citrus Nursery summarizes his presentation, starting with questions growers have for nurserymen. “I think the number-one question that we get is, ‘What tree …
The U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA) today announced four grants totaling more than $13.6 million to combat a scourge on the nation’s citrus industry, citrus greening disease, aka huanglongbing. The funding is made possible through NIFA’s Specialty Crop Research Initiative Citrus Disease Research and Extension Program, authorized by the 2014 Farm Bill. Sponsored …
A handful of citrus growers discussed January bloom and postbloom fruit drop (PFD), bactericides, nutrition and replanting strategies at a grower forum in Sebring on January 12. Laurie Hurner, Highlands County Extension director and citrus Extension agent, summarizes the discussions. “We are looking at areas where we’ve got bloom coming on. That is a little bit nerve-wracking for January,” Hurner …
Ed Pines’ solution to citrus greening is to grow fruit in a citrus undercover production system. By Catalina Pines “It’s said that necessity is the mother of all invention, and today I toured one way the citrus industry is fighting back against greening,” said Florida Commissioner of Agriculture Adam Putnam on Twitter after touring Precision Citrus on September 23. In …
By Arnold Schumann, Laura Waldo and Alan Wright Research for producing huanglongbing (HLB)-free fresh Florida citrus with covered production systems began at the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center in 2013 and at the Citrus Research and Education Center (CREC) in 2014. These citrus undercover production systems (CUPS) evolved from the …
Approximately 40 people trekked into a Premier Citrus Management grove in Saint Lucie County on December 6 to learn that microbial soil amendments haven’t increased yields in an HLB-infected grove. Daniel Bott, Premier Citrus division manager for approximately 5,000 acres, including the trial site off Indrio Road, comments on the results. “There seems to be some differentiation between the products,” …
By Laura Reuss, Fred Gmitter and Yu Wang In Florida, it is necessary to produce large quantities of high-quality citrus fruits in order to keep pace with the projected market growth, as well as to maintain viability of the citrus industry. Successful development of new varieties and pre- and post-harvest practices should be consumer-driven. However, consumer behavior is often affected …
By Ute Albrecht Despite the constant threat of huanglongbing (HLB), most growers remain optimistic and are replanting citrus trees to maintain production levels necessary for sustaining the industry. The tax incentive bill under the Emergency Citrus Disease Response Act introduced in December 2015, if implemented, will help growers get back expenses associated with replanting of diseased trees immediately, instead of …
By Tripti Vashisth In 2005, huanglongbing (HLB or citrus greening disease) was first discovered in Florida. Florida orange production changed from 242 million boxes in the pre-hurricane, pre-HLB, 2003–2004 season to 81.5 million boxes in 2015–2016. This dramatic reduction in yield is attributable to multiple causes, including a reduction in citrus acreage, citrus canker and other citrus diseases. HLB is …
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 …
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 …
Six citrus growers shared their views on a wide range of topics with about 50 fellow producers at a Peace River Valley Citrus Growers Association (PRVCGA) gathering Thursday in Bowling Green. PRVCGA Executive Director LeAnna Himrod, who posed questions for the panelists, summarizes the discussions by topic. Crop size: “I think that everyone’s expecting it to be lower than last …
Florida Citrus Commission Chairman Ellis Hunt Jr. reacts to projections Wednesday that Florida’s orange production will likely be near current levels or possibly much lower in 10 years. He says existing growers and/or institutional investors could replant trees lost to HLB fairly rapidly if they believe trees can survive and produce fruit in the face of HLB. “I think we …
By Tripti Vashisth and Troy Gainey In the last 11 years, Florida orange production has declined more than 60 percent. This dramatic reduction in yield is attributable to multiple causes, including loss of citrus acreage in the state, citrus canker and other diseases, but huanglongbing (HLB) is now recognized as the primary reason for declining citrus yields. HLB-affected trees are …
Planting new groves in the face of HLB has become a daunting task for Florida growers. At the recent Citrus Expo, University of Florida researcher Ute Albrecht offered suggestions for those taking on the challenge. “Among the important things to consider when planting new groves are the site preparation, the planting of the trees, weed management, irrigation and nutrition, and …
By Bill Castle and Luiz A.B.C. Vasconcellos Maybe it’s time to try a scion as a rootstock! Murcott is widely known as a scion variety, but it might be an interesting rootstock based on grower experience in Brazil as well as rootstock trial results and some commercial use in Florida. Mandarin rootstocks and their hybrids have generally good horticultural traits, especially …
