Satsuma mandarins helped establish the citrus crop in Georgia. Alternate varieties will help the state’s industry continue to grow. Mary Sutton’s appointment as the new University of Georgia (UGA) citrus Extension specialist should help growers implement varieties that have been tested and are suitable for Georgia growers. Part of her role will be to research alternatives to satsumas to see …
Seeking Early-Season Sweet Oranges
HLB has reduced citrus production across the board, but early varieties like Hamlin have taken an even bigger hit. Hamlin has been plagued by the disease and fruit drop, which has left a void in the juice-processing segment in the early season. Growers who have been replanting have mostly relied on later-season varieties like Valencia because it seems to be …
Repository Is ‘Insurance Policy’ for Australian Citrus
Through Hort Innovation investments on behalf of growers and the Australian government, the National Citrus Repository Program has been established as an ‘insurance policy’ to protect Australia’s citrus industry against destructive, incurable diseases. The repository houses more than 120 publicly-owned true-to-type ‘foundation tree’ variety clones so growers can access clean, disease-free planting material for assured quality and yield protection. According …
Some Grapefruit Showing Less HLB Symptoms
A recent update of the U.S. Department of Agriculture Multi-Agency Coordination (MAC) Project evaluating multiple grapefruit varieties on different rootstocks reveals that some combinations have less HLB symptoms than others. Jackson has one of the lowest ranks for disease index across the combinations. The healthiest trees in the trial include: At least half of the blocks in the MAC trial …
Growers Must Settle for HLB-Tolerant Trees While Waiting for Resistance
The dream of citrus varieties being totally resistant to huanglongbing (HLB) disease (citrus greening) is still a distant reality for Florida growers. For now, they must depend on tolerant varieties to lessen the disease’s impact, which is widespread throughout most of the state. Michael Rogers, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center …
CITRUS NURSERY SOURCE: A Day of Learning About New Rootstocks and Varieties
By Peter Chaires The U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) U.S. Horticultural Research Laboratory and Florida Citrus Research Foundation (FCRF) jointly held an open house, variety display and field tour at the W.H. Whitmore Foundation Farm between Leesburg and Groveland in early December. This annual event provides a great opportunity for industry members to see the latest innovations in …
Studying the Mechanisms for HLB Tolerance
John Chater has been on the job now for two years, working with growers to evaluate variety performance in field trials. In the latest All In For Citrus podcast episode, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor discusses his work, including grower collaboration to study new varieties in real-world environments. Chater also talks about …
Rootstocks and More Showcased at Field Day
In early December, the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) hosted its annual A.H. Whitmore Foundation Farm field tour and variety display in Groveland, Florida. The event was well attended and showcased the USDA-ARS citrus scion and rootstock breeding program. Attendees loaded up for a hayride and guided tour through the grove. One stop showcased the cooperative work the …
Diversification Continues to Be Key for Cold-Hardy Region
Diversification is key to production remaining sustainable in the cold-hardy citrus region. It is message that industry leaders preach to producers who are looking to grow the citrus industry in North Florida, Georgia and Alabama. John Chater, assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, talked about the importance …
Blood Oranges May Be Option for Cold-Hardy Region
Blood oranges could provide citrus growers with another variety to grow in the cold-hardy citrus region. But further research is needed to verify its effectiveness in the Southeast, says Ali Sarkhosh, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor. “We harvested those fruit in Quincy at the North Florida Research and Education Center. We still don’t …
Millennium Block Varieties Tour
Citrus growers are invited to tour the 20-acre Millennium Block at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) in Fort Pierce on Nov. 7. The tour will be held from 9 a.m. to 2 p.m. New varieties in the grove are in their fourth year of growth. Researchers are …
Sugar Belle Is Cold Hardiest Among Non-Satsumas
A survey by 15 Extension agents showed Sugar Belle mandarin to be the most cold-hardy non-satsuma citrus variety following a major freeze in Georgia in December 2022. Sugar Belle was followed in order of cold hardiness by Tango, navel oranges, Kishu and grapefruit. Shiranui was the least cold hardy non-satsuma variety. University of Georgia Extension agent Jake Price reported the …
Breeder Discusses New Fresh Citrus Varieties
In a virtual presentation, plant breeder Jude Grosser discussed recently released citrus varieties that might work well in the fresh fruit market. Grosser is a professor at the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center. Here’s a look at some of the varieties he addressed: MANDARINSGrosser described Marathon as the “best option” …
The Big Push for New Processed Orange Varieties
Citrus breeders at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have been making a big push for four years to develop new orange varieties for processing. The need for the push was accentuated last year by a multitude of adverse situations on the processing side of the business. In a recent virtual presentation, UF/IFAS plant breeder …
Three New Citrus Releases From UF/IFAS
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center breeding program has released three new scion cultivars in the last year. These cultivars provide opportunities for diverse segments of the Florida citrus industry, including nurseries catering to the home landscape marketplace. The new releases demonstrate the value of a broad-based breeding program to …
Provide Feedback During Florida Fruit Displays
Later this month, Florida citrus fruit displays will get underway. This is a key component of the citrus breeding program to get input from growers and other industry stakeholders on how fruit from potential new varieties looks and tastes. During the September All In For Citrus podcast, Michael Rogers, director of the University of Florida Institute of Food and Agricultural …
Breeder Advice on Nutrition, Scions and Rootstocks
Citrus breeder Jude Grosser recently shared tips on tree nutrition and discussed some scion/rootstock combinations that should work well for trees producing juice oranges. NUTRITIONGrosser became very interested in citrus nutrition several years ago in an effort to keep his newly bred trees healthy in the face of HLB. The University of Florida Institute of Food and Agricultural Sciences professor …
Participate in Variety Displays and Field Days
By Peter Chaires Each year, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus breeding teams provide opportunities for interested parties to sample fruit from new and recent selections. This is a great opportunity to remain current on research results. Participation from growers, processors, packers, marketers and fruit enthusiasts is desired. Shoppers in produce departments represent a …
UGA Citrus Research Benefits From Freeze
Research in South Georgia cold-hardy citrus requires freezing temperatures for studies to be effective. When temperatures dropped below freezing for multiple days around Christmas last year, it allowed Jake Price, University of Georgia (UGA) Lowndes County Extension coordinator, to conduct extensive research into various citrus varieties and rootstocks. He discussed his research during a citrus meeting in early August. “We’ve …
Fruit Quality Evaluations for Georgia Citrus Varieties
Characteristics of 30 varieties and 45 variety/rootstock combinations were reported in Evaluating Fruit Quality of Citrus Varieties in Georgia, 2021-22. Jacob Price, county Extension coordinator for Lowndes County and Extension citrus specialist with University of Georgia (UGA) Extension, authored the report. Price noted that most groves in Georgia were planted after 2014. Initially, satsuma mandarins (Citrus unshiu) on trifoliate rootstocks …