plantings

CITRUS NURSERY SOURCE: Tree Propagations Provide Insight on Plantings

Daniel CooperCitrus Nursery Source, Varieties

By Peter Chaires The summer of 2024 has been one of suspense, hope and anticipation. There is great suspense in learning how many acres will remain in citrus production, be repurposed or worse yet, be developed. There is a great sense of hope that Mother Nature will provide ideal growing conditions for the crop, and natural disaster recovery will not …

HLB-tolerant

HLB-Tolerant Scion Breeding Update

Daniel CooperVarieties

U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) geneticist Matt Mattia with the U.S. Horticultural Research Laboratory in Fort Pierce, Florida, recently provided a scion breeding update on HLB-tolerant citrus. A slightly edited version follows:  Significant strides are being made in the development and evaluation of new citrus varieties, with many now nearing commercial release. These varieties are not only promising …

breeding

HLB at Center of Florida Citrus Breeding Efforts

Daniel CooperBreeding, Varieties

Peter Chaires, New Varieties Development and Management Corp. executive director, spoke about citrus breeding at the Cold Hardy Citrus Workshop on Sept. 24 at the University of Florida Institute of Food and Agricultural Sciences Extension office in Perry. Chaires said HLB tolerance “is an essential element of everything that’s being done in the breeding program with a stronger emphasis than …

variety displays

CITRUS NURSERY SOURCE: Get Out and About at Variety Displays and Field Days

Daniel CooperCitrus Nursery Source, Events, Varieties

By Peter Chaires Each year, citrus breeding and research teams go to great lengths to host variety displays, research reviews, tours and field days. These events not only showcase the collective pursuit of industry needs and priorities, but they afford stakeholders an opportunity to monitor the progress and interact directly with scientists and support staff. This is an investment of …

citrus crop

Research Aims to Diversify Georgia’s Citrus Crop

Daniel CooperGeorgia, Varieties

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 …

early-season

Seeking Early-Season Sweet Oranges

Daniel CooperAll In For Citrus Podcast, Varieties

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

Repository Is ‘Insurance Policy’ for Australian Citrus

Daniel CooperInternational, Varieties

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 …

grapefruit

Some Grapefruit Showing Less HLB Symptoms

Daniel CooperGrapefruit, Rootstocks, Varieties

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 …

tolerant

Growers Must Settle for HLB-Tolerant Trees While Waiting for Resistance

Daniel CooperEvents, HLB Management, Varieties

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

CITRUS NURSERY SOURCE: A Day of Learning About New Rootstocks and Varieties

Daniel CooperCitrus Nursery Source, Rootstocks, 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

Tacy CalliesAll In For Citrus Podcast, Research, Varieties

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 …

field

Rootstocks and More Showcased at Field Day

Daniel CooperEvents, Rootstocks, Varieties

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

Diversification Continues to Be Key for Cold-Hardy Region

Daniel CooperCold Hardy, Varieties

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

Blood Oranges May Be Option for Cold-Hardy Region

Daniel CooperCold Hardy, Varieties

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

Josh McGillEvents, Rootstocks, Varieties

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

Josh McGillVarieties

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

Josh McGillFresh, 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

Josh McGillOrange Juice, 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

Josh McGillVarieties

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

Josh McGillAll In For Citrus Podcast, Events, Varieties

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 …