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 …
Factors Influencing Cold Hardiness of Citrus
Jake Price, University of Georgia county Extension coordinator, recently reported on the factors that influence cold hardiness of citrus. Excerpts follow: VARIETY The most obvious factor is the variety of citrus. In order of cold hardiness, the three main classes of citrus are mandarins, sweet oranges and grapefruit. Acid types of citrus such as lemons and limes are the least …
PGRs for HLB-Affected Trees: An Update
Using the plant growth regulators (PGRs) cytokinin in spring, gibberellic acid (GA) in summer and 2,4-D in late fall can be helpful for HLB-affected trees, horticulturist Tripti Vashisth reported. Her PGR update came during a Feb. 21 OJ Break. Multi-county citrus Extension agent Chris Oswalt hosted the event at the University of Florida Institute of Food and Agricultural Sciences Citrus …
Georgia Growers to Vote on Marketing Order to Fund Research
Georgia’s citrus industry started with the help of University of Georgia (UGA) Extension. Research assistance from UGA could help the industry flourish. Georgia citrus growers will have an opportunity to vote on a marketing order that will help fund potential research, explains Ken Corbett, chairman of the Georgia Agricultural Commodity Commission for Citrus Fruits and a producer at Corbett Brothers …
Citrus BMP Manual Being Revised
Florida Commissioner of Agriculture Wilton Simpson has tasked his staff with reviewing and revising all of the best management practices (BMP) manuals that impact Florida agricultural operations in 2024. Revision work on the citrus BMP manual was undertaken by the Florida Department of Agriculture and Consumer Services (FDACS) Office of Agricultural Water Policy in 2020. However, that work was never …
Nutrition Remains a Critical Element as New Therapies Roll Out
Growers have largely adopted new trunk-injection therapies to fight the effects of HLB in citrus groves. In addition, plant growth regulators have helped improve tree health and fruit retention. One University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) scientist reminds growers to maintain their fertilizer programs as the new therapies are deployed. Davie Kadyampakeni, UF/IFAS associate professor of …
All In For Citrus Podcast, February 2024
Florida citrus growers are now well into their second application of oxytetracycline (OTC) via trunk injection to treat HLB. Per the label of both registered OTC products, after two applications, there is a one-year treatment pause. So, growers will be formulating plans on what to do during the off-season for OTC-treated trees. That was the subject of discussion during the …
Update on Chlorpyrifos Use
By Brett Bultemeier, Mike Aerts and Lauren Diepenbrock On Dec. 28, 2023, the U.S. Court of Appeals for the Eighth Circuit revoked a previous decision related to chlorpyrifos tolerances for food. Chlorpyrifos is a broad-spectrum insecticide used in a variety of crops, including citrus. The original decision revoked all food tolerances, whereas this new ruling essentially reinstates them. This means …
Supply Challenges and Demand Solutions
By Marisa L. Zansler The landscape of the Florida citrus industry has undergone significant transformations throughout its history. Over the past decade, it has faced substantial challenges in both supply and demand. Florida orange juice (OJ) production dropped by 85%, from 615 million gallons in the 2013–14 season to an estimated 94 million gallons in 2023–24. Even as imports increased …
Gulf Citrus Grower Panel Discusses Trunk Injection
The Gulf Citrus Growers Association recently hosted a grower panel at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center in Immokalee to discuss experiences and results of trunk injection of oxytetracycline (OTC) to treat HLB. Participating in the panel were Ron English, Florida’s Natural Growers/Ranch 1; David Wheeler, Wheeler Farms; and …
Global Grapefruit Production to Rise
Global grapefruit production in 2023–24 is estimated up slightly from the prior year to 6.9 million tons, the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) reported. A slight increase in China more than offset lower production in South Africa. World exports of grapefruit are projected to increase while fruit for processing is forecast to be lower. Here are …
Study Analyzes the Economics of Cover Crops
In the face of HLB in Florida, a recent study delved into the economic viability of incorporating cover crops in citrus groves to enhance soil health and overall tree well-being. Shourish Chakravarty and Tara Wade wrote an article, Cost Analysis of Using Cover Crops in Citrus Production, about the study. Both authors are with the University of Florida Institute of …
Oriental Fruit Fly Quarantine Conditions Modified
Conditions for the movement of fresh citrus fruit from the Redlands Oriental fruit fly (OFF) quarantine area of San Bernardino and Riverside counties in California have been temporarily modified for the duration of the 2024 harvest season. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) announced the modification on Feb. 5. Due to the imminent …
Citrus Industry Survey Looks at Planting Intentions
By Frank Giles Last month, results of the Florida Citrus State of the Industry Survey showed a majority (84%) of growers had treated at least a portion of their groves with trunk-injection therapy. Will this new HLB treatment give growers confidence to plant new trees? Survey results indicate growers are putting trees into the ground. Here’s a look at more …
Peace River Valley Citrus Growers Association Ceases Operations
Peace River Valley Citrus Growers Association (PRVCGA) is ending its 31-year run. After much consideration and deliberation, the association’s board of directors announced the decision to close down in a letter released Feb. 12 by Executive Director Emma Keller. The letter stated that the tough decision to close the association “comes after facing numerous challenges that have significantly impacted our …
Field Day Features Mechanical Citrus Harvest
By Frank Giles A recent field day showcased how technology might help citrus growers with two of their biggest challenges: sourcing labor and fighting HLB. The event was held at Lost Lake Groves in Lake Placid, Florida, and featured machine harvest of citrus trees in an experimental super-high-density grove. The grove has 908 trees per acre and has been topped …
Tips for Trunk Injection of Oxytetracycline
By Ute Albrecht and Ozgur Batuman Follow these important tips for proper trunk injection of oxytetracycline as a citrus therapeutic. APPLICATION TIMING INJECTION TECHNIQUE ADDITIONAL ADVICE Ute Albrecht (ualbrecht@ufl.edu) and Ozgur Batuman (obatuman@ufl.edu) are associate professors at the University of Florida Institute of Food and Agricultural Sciences Southwest Florida Research and Education Center in Immokalee. Sponsored Content5 Facts About Fire …
Citrus Crop Forecast Has One Change
The only change in the Feb. 8 citrus crop forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS) was a 700,000-box reduction in Florida non-Valencia oranges compared to the January forecast. That reduced the expected 2023–24 Florida non-Valencia crop to 6.8 million boxes and the total Florida orange crop to 19.8 million boxes. The percentage reductions …
International Event to Focus on Flavor
Food and beverage industry representatives from across the world will gather in Orlando March 4–6 to learn the research behind unique tastes and aromas during the third International Flavor Summit. The conference will be held at the Holiday Inn Lake Buena Vista. Scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) …
Global Orange and OJ Production to Increase
Global orange and orange juice production are both forecast to increase slightly in 2023–24 from the previous year, according to the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). ORANGES Global orange production for 2023–24 is forecast up slightly to 48.8 million tons compared to the prior year. Here’s the country-by-country forecast from USDA FAS: U.S. production is forecast …