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Below you'll see everything we could locate for your search of “mandarin”
The Florida Citrus Commission (FCC) on Sept. 17 approved a Florida Department of Citrus (FDOC) request to exercise the right to eight new varieties from the Florida Foundation Seed Producers (FFSP). These varieties were developed by the University of Florida Citrus Research and Education Center Citrus Breeding Program. The FCC, which governs the FDOC, will retain exclusive rights to the varieties …
By Peter Chaires It’s time to log some dates on the calendar. Citrus breeding teams have set dates for this year’s variety displays, field days and open houses. These events present excellent opportunities to learn about their priorities, methods and results. There are opportunities to sample the fruit of the latest promising selections, as well as tour test plantings and …
By Clint Thompson and Dale Sandlin The potential lack of satsuma mandarins this season in the cold-hardy citrus region should not discourage growers from adding to their production portfolio in the future. It just means they need to try other varieties, despite satsumas being the most commonly produced variety in the region. Jake Price, University of Georgia (UGA) area citrus …
Production in the cold-hardy citrus region continues to be a learning process for growers. Producers in North Florida, South Georgia and South Alabama are learning this year the price of alternate bearing for their satsuma mandarin crop. After a heavy crop load last season, production is expected to taper off quite a bit this season across the cold-hardy citrus region. …
By Davie Kadyampakeni, Noor Basar, Alisheikh Atta, Muhammad Shahid, Shahid Iqbal and Alan Wright Citrus trees in Florida impacted by HLB have limited nutrient uptake largely due to limited root mass, compromised physiology and extremely sandy soil. The state’s current nutrient management guidelines were developed based on data prior to the spread of HLB, when trees had dense canopies and …
The U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS) launched a new resource to support American farmers’ access to international trade opportunities. Maximum Residue Limit Quick Reference Sheets provide information about pesticide residue requirements in major export markets for U.S. producers and shippers of fruits, vegetables and other horticultural crops. USDA FAS developed the MRL Quick Reference Sheets in partnership …
By John M. Chater Citrus tree trunk injection of antibiotics has been recently and widely used in Florida. The success of oxytetracycline (OTC) in sweet orange to mitigate huanglongbing (HLB or citrus greening) disease has been documented by the laboratory of Ute Albrecht, associate professor at the University of Florida. Some results suggest that OTC injection can improve Brix, ratio, …
The U.S. Department of Agriculture National Agricultural Statistics Service (USDA/NASS) released its last citrus crop forecast update of the 2024-25 season on July 11. The Florida Valencia orange forecast increased 2%, from 7.4 million boxes in June to 7.55 million boxes. That increased the Florida all-orange forecast from 12 million boxes in June to 12.15 million boxes. Florida’s all-grapefruit forecast …
Fruit is scarce this season on satsuma trees in the Southeast. There was an oversupply of satsuma mandarins in the cold-hardy citrus region last season. That will not be the case in 2025. According to Lindy Savelle, executive director of the Georgia Citrus Association and member of the Georgia Citrus Commission, satsuma supply will be extremely low for the upcoming …
By Muhammad A. Shahid and KeAndre Leaks Silicon (Si) is an emerging powerhouse in citrus production, offering wide-ranging benefits for plant health, fruit quality and stress resilience. While not traditionally considered essential, silicon was officially recognized as a “plant beneficial substance” in 2012 by the American Association of Plant Food Control Officials. Its inclusion as an approved input by the …
A July Specialty Crop Grower magazine article explores the potential of trunk injection for fresh market citrus. While trunk injection of oxytetracycline has become a common practice in Florida citrus grown for juice, growers of fresh market varieties have expressed interest in this HLB-management tool. Therefore, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are studying trunk …
By Lamiaa Mahmoud and Manjul Dutt Utilizing tolerant rootstocks to combat HLB is a long-term management strategy that can help sustain productivity and enhance tree survival, especially when implemented alongside other HLB management approaches. Australian limes are tolerant to HLB, and their DNA can be incorporated into HLB-susceptible citrus using conventional breeding methods to enhance tolerance to HLB. Over the …
To assist growers, the Coalition for Urban Rural Environmental Stewardship (CURES) has released a new bilingual educational video, 4Rs and Citrus Nitrogen. It is available in English and Spanish. The video focuses on nitrogen application in citrus crops, highlighting the 4Rs of nutrient management: Featured presenters in the video are Parry Klassen, CURES executive director; Courtney Jallo, CURES senior program …
The U.S. Department of Agriculture National Agricultural Statistics Service (USDA NASS) released a citrus crop forecast update on June 12. Florida’s 2024–25 all-orange forecast climbed 3% to 12 million boxes. That’s an increase of 370,000 boxes since the May forecast of 11.63 million boxes. If the forecast is realized, it will be more than a third less than 2023–24 Florida …
By Jake Price There are two types of rust mites, the citrus rust mite (CRM) and the pink citrus rust mite (PCRM). The CRM is one of the biggest citrus pests in Georgia on fresh fruit. I don’t know that I have seen the PCRM in Georgia, but it is probably here. Every year, CRM is a problem at the …
Practices that might help with alternate bearing were recently addressed in a report by Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist. Alternate bearing, a common problem in many mandarin varieties, is the tendency of a tree to produce a heavy crop one year followed by a light crop the subsequent year. A slightly edited version …
Fruit in the cold-hardy citrus region is expected to be in short supply next season due to the trees’ alternate bearing cycle. The fruit also could be too large to sell, creating another concern for growers heading into next season. “Trees with a low crop load tend to have large fruit,” noted Mary Sutton, University of Georgia (UGA) assistant professor …
Flavia Zambon, assistant professor with the University of Florida Institute of Food and Agricultural Sciences, recently provided an update about Millennium Block research at the Indian River Research and Education Center. The block, established in 2019–20, is a large-scale, 5,500-tree trial seeking HLB-tolerant citrus varieties. Zambon says some varieties in the trial are showing strong fruit attributes without the need …
Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist, recently wrote about the causes of alternate bearing in Georgia groves. Alternate bearing is a common problem in many mandarin varieties. A slightly edited version of Sutton’s report follows. CARBOHYDRATES During photosynthesis, leaves produce sugars that are either exported and utilized for growth or stored as starch in …
By Peter Chaires Beginning in 2013, New Varieties Development & Management Corp. (NVDMC) worked in tandem with the University of Florida Institute of Food and Agricultural Science (UF/IFAS) Citrus Research and Education Center Plant Improvement Team (then Jude Grosser, Fred Gmitter and Bill Castle) and Florida Foundation Seed Producers Inc. to make newly identified fresh market citrus varieties available for …
