Citrus has been making its way north in recent years. So far, growers in North Florida and Georgia have had success producing the crop, with only minor incursions of HLB, the disease that has been devastating in Florida’s traditional citrus production areas. The Southeast Regional Fruit & Vegetable Conference, held in Savannah earlier this month, included a citrus program for …
Planning Your 2023 Pest Management
By Lauren Diepenbrock Pest management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of some highly problematic pests …
Guidelines for ReMedium TI Use
Trunk injection of the oxytetracycline hydrochloride formulation ReMedium TI for HLB treatment was given final clearance Jan. 11. The product began moving into the Florida citrus industry that same day. Consequently, the product’s manufacturer and the Citrus Research and Field Trial (CRAFT) Foundation both issued reminders and recommendations about the product’s use. Manufacturer TJ BioTech, LLC suggested the following things …
All In For Citrus Podcast, January 2023
The January All In For Citrus podcast kicks off 2023 with a recap of a recent citrus program on gibberellic acid as well as a preview of a host of upcoming events. Michael Rogers, director of the Citrus Research and Education Center, provides details on the various seminars scheduled on topics ranging from trunk injection to the new and improved …
Investing in Artificial Intelligence
By J. Scott Angle, jangle@ufl.edu, @IFAS_VP University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) breeders produce new citrus plants more quickly than they can figure out if consumers like how the new fruit varieties taste. In the race to create versus evaluate, creators lead evaluators by hundreds of individual plants at a time. It takes a post-doc a …
Artificial Intelligence to Assess Crop Damage
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers plan to use artificial intelligence (AI) technology to quantify damage to fruits and vegetables caused by extreme weather events. One such extreme weather event was Hurricane Ian, which struck Florida on Sept. 28, 2022. The storm’s damage to all crops, livestock and aquaculture products was initially estimated at up …
Citrus Leaders Provide Disaster Testimony
Florida agriculture took a wallop from Hurricane Ian last year. Throw in another hurricane (Nicole) and a freeze, and the disaster losses stacked up. The state’s citrus industry took a particularly hard hit. On Jan. 17, citrus industry representatives headed to Tallahassee to testify before the Florida Senate Agriculture Committee about the toll these weather events had on an already …
USDA Buying $20 Million of Fresh Mandarins
The U.S. Department of Agriculture (USDA) will purchase up to $20 million of fresh mandarins and tangerines for distribution to food banks, schools and other non-conventional markets. According to California Citrus Mutual (CCM), this is the first time USDA has made such a purchase under authority of Section 32 of the Agricultural Adjustment Act Amendment of 1935. The purpose of …
Grower Sees More Damage From Season’s Second Freeze
Another freeze event last weekend could spell doom for some citrus trees produced in the cold-hardy citrus region. Kim Jones, president of the Cold Hardy Citrus Association, discussed the dire situation facing growers in the region. “I think we had some damage to some new growth that had come out from the last freeze. I can’t tell how much, but …
Postharvest Water Requirements for Packers
By Clara Diekman, Micah Gallagher, Taylor O’Bannon and Michelle Danyluk Compliance dates for all water associated with the Produce Safety Rule (PSR, Subpart E) has previously been delayed, pending completion of the rule. The U.S. Food and Drug Administration (FDA) announced in the fall of 2022 that postharvest water requirements in the PSR will be enforced on large farms beginning …
The Promise of Gibberellic Acid
Researcher Tripti Vashisth shed additional light on the promise of gibberellic acid (GA) applications in rejuvenating HLB-affected orange trees during a Jan. 11 presentation. Some of the important messages that the University of Florida Institute of Food and Agricultural Sciences associate professor highlighted were: VALENCIA TRIALIn a 2016 to 2022 Valencia field trial, GA applications made from September to January …
More CYVCV Detected in California
Two new detections of citrus yellow vein clearing virus (CYVCV) have been confirmed in rural residential citrus trees in the city of Visalia in Tulare County, California. The detections resulted from an ongoing survey and sampling activities conducted by the California Department of Food and Agriculture (CDFA). CYVCV had previously been confirmed in August in the city of Tulare; learn …
Brazil’s Orange Juice Production and Exports
Production of Brazilian frozen concentrated orange juice (FCOJ) is forecast at 1.12 million metric tons (MMT) in 2022–23, a drop of 1% from the prior year. The reduction is due to the lower availability of fruit for processing, according to a U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) Brazilian citrus report. São Paulo is expected to process 268 …
Lake Region Packing Book Launched
Numerous former employees of Lake Region Packing Association (LRPA) and their families and citrus industry associates attended a Jan. 7 meeting in Tavares to launch a digital book about the association. The meeting was hosted by former Extension agent John Jackson, who worked in Tavares and knew many association grower members and employees for decades. Speakers included Jackson; the book’s …
Trunk Injection Not a Silver Bullet for HLB
Although trunk injection of oxytetracycline hydrochloride (OTC-HCl) has received much recent press for its promise in managing HLB, there is still no silver bullet for the devastating disease. That was part of plant pathologist Ozgur Batuman’s message at a Dec. 10 seminar addressing HLB and other citrus diseases that may exacerbate HLB’s effects on trees. “There is no single effective …
Department of Citrus Responding to Media and Promoting OJ
The Florida Department of Citrus (FDOC) worked with Florida Citrus Mutual (FCM) and public relations agency Red Hill Strategies to manage media requests regarding crop forecasts and the impacts of hurricanes in 2022. The FDOC has also worked with FCM to develop a toolkit about the application of oxytetracycline in the fight against HLB. FDOC Director of Global Marketing Samantha Lane …
Get the Timing Right for Gibberellic Acid Applications
By Tripti Vashisth Since 2021, a number of Florida growers have adopted the use of gibberellic acid (GA) in their grove management programs. This widespread adoption is due to the fact that GA-treated trees show canopy rejuvenation and reduction in preharvest fruit drop, resulting in improved yields. The research on Valencia shows that the effect of GA improves over time. …
Taking Fertilizer Knowledge to the Next Level
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has launched a new online graduate certificate program for agricultural professionals. “The certificate program is called Fertilizer Science and Technology, offered completely online at the student’s pace and oriented to growers, consultants, suppliers and regulators,” says Kelly Morgan, UF/IFAS professor of soil fertility and water management. The certificate is …
Taking Care of Trees After the Five-Night Freeze
“To some extent, every citrus variety has suffered from cold damage” due to the five-night freeze event that occurred in the cold-hardy citrus region Dec. 24–28. That report comes from Jake Price, Lowndes County Extension coordinator for University of Georgia Extension. “The site of our citrus research plots in Valdosta reached a low of 16 degrees, which is the lowest …
Blanket Flowers Increase Arthropod Predators and Pollinators in Citrus Groves
By Angela Chuang and Lauren Diepenbrock While many arthropod predator and pollinator activities benefit crop quality and yields, traditional farming environments may not be ideal habitats to support their survival year-round. For example, wild bees or flies that pollinate citrus may need other sources of nectar and pollen when citrus is not flowering. Planting wildflowers near crop fields to improve …





























