Researcher Glenn Wright recently reported how various rootstocks for lemon trees producing fresh market fruit compared for yield and other qualities in three California locations with different climates. Wright is a University of Arizona associate professor and Extension specialist for tree crops. SANTA PAULASanta Paula’s warm summer Mediterranean-like climate had the following results: LINDCOVEResearch in Lindcove, a hot summer Mediterranean-like …
RAISE Act Would Improve Grower Disaster Relief
Several members of Congress from Florida recently introduced the Restore Agricultural Investment, Stability and Expansion (RAISE) Act of 2023. The act would provide the U.S. Department of Agriculture (USDA) with standing authority to help American growers recover after natural disasters by issuing block grants. Supporters said the bill better positions the measure to reach President Joe Biden’s desk and become …
USDA to Buy Fresh Grapefruit for Food Programs
The U.S. Department of Agriculture (USDA) recently announced plans to purchase fresh grapefruit for distribution to various food nutrition assistance programs. The purpose is to encourage the continued domestic consumption of these products by diverting them from the normal channels of trade and commerce. USDA said ample availability of fresh grapefruit is projected to increase due to slower movement in …
Grapefruit Rootstock/Scion Research Update
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers Mark Ritenour and Flavia Zambon recently provided an update on a large field trial. The project is called Evaluation of Potential HLB Tolerant Grapefruit Rootstock/Scion Combinations in the Indian River District of Florida. A summary of their update follows: The project started as a collaborative effort between the UF/IFAS …
CRAFT Reopens Existing Tree Therapies Program
The Citrus Research and Field Trial (CRAFT) Foundation has reopened the application window for its Existing Tree Therapies Program. Applications will be accepted until 5 p.m. on Aug. 31. Participants will be selected through a random lottery, administered by a third-party entity. The program is designed to provide the industry with a better understanding of the best use patterns, combinations …
Speeding Up the Screening Process for HLB Therapies
While it remains to be seen if trunk injection of oxytetracycline hydrochloride (OTC-HCl) is a game changer in the fight against HLB, it certainly has intensified the conversation about the potential for antimicrobial treatments. There are literally hundreds of materials that might be effective at reducing the HLB bacteria in trees, but it has been a slow process to screen …
Greasy-Green Research Update
University of Florida Institute of Food and Agricultural Sciences researchers Megan Dewdney, Mark Ritenour, Liliana Cano, Eva Mulandesa and Monty Myers recently provided an update of their greasy-green disorder research. Excerpts follow from the Indian River Citrus League’s River Ramblings publication: “Greasy green” is a term applied to fruit that develop what appears to be greasy spot rind blotch symptoms …
Lemon Scion Research Summarized
An assortment of lemon scions producing fresh market fruit performed differently for yield and other qualities in three California locations. Glenn Wright, University of Arizona associate professor and Extension specialist for tree crops, provided the comparative results from the three locations in a June 20 webinar. All results are through the 2020–21 season. SANTA PAULAThe Santa Paula location, with a …
European Orange Production to Decline
European Union (EU) orange production is projected at nearly 5.8 million metric tons (MMT) for 2022–23, almost a 13% reduction from the previous season, according to a U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) report. Reductions are expected mainly in Spain and slightly in Italy and Portugal. SPAINOrange production in Spain is projected to decline by 22.8%, amounting …
Recovery Will Require a Multipronged Management Program
By Michael Rogers The 2022–23 Florida harvest season is now behind us. Yield losses magnified by the weather events this past season position the next couple of years as “make or break” for many growers. The lingering effects of hurricane Ian will impact next season’s crop as trees continue to recover and balance out canopy regrowth with fruit production. Despite …
OJ Availability, Price and Sales
Worldwide availability of orange juice (OJ) has declined by 10% to 12% this season (2022–23) compared to the prior season, economist Marisa Zansler told the Florida Citrus Commission (FCC) in June. Zansler is the Florida Department of Citrus (FDOC) director of economic and market research. The FCC is the FDOC’s governing board. In the 2022–23 season, frozen concentrated OJ availability …
Update on Sweet Orange Scab in California
A California researcher recently provided an update on sweet orange scab (SOS). The fungal disease has been detected in the state 18 times since 2013. University of California, Riverside professor and plant pathologist Jim Adaskaveg said most of the detections have been in Southern California, especially in Imperial County. Eleven detections have been in commercial lemon orchards, three in commercial …
Japanese Diagnostic Method Targets Breeding Rights Violations
Citrus is the third most important agricultural product in Japan. The success of the Japanese citrus industry is attributed to the development of new cultivars that are free of pests and diseases, climate-resilient and exhibit superior fruit quality. There has, however, been a growing concern over the infringement and violation of breeding rights of citrus cultivars developed in Japan. This …
HLB Lessons Learned From Nepal
Citrus is grown in many different regions across the globe. Some of those places look very different than the Florida landscape. But that doesn’t mean growers in different regions can’t benefit from learning about how others grow their fruit. That was the message from Christoper Vincent, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor of environmental …
Angle Named University of Florida Interim Provost
J. Scott Angle, head of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), will serve as UF’s interim provost when Joseph Glover steps down in July. Angle will continue to lead UF/IFAS with executive decision making and strategic direction. Robert Gilbert, current UF/IFAS dean of research, will handle day-to-day administration for the organization in the interim. In …
Fair Access to Agriculture Disaster Programs Act Introduced
U.S. Representatives Jimmy Panetta of California and Kat Cammack of Florida have introduced bipartisan legislation to reduce income barriers that producers face in accessing agriculture disaster assistance. The Fair Access to Agriculture Disaster Programs Act aims to ensure that basic safety-net programs for producers are readily available to help full-time farmers recover following natural disasters. Current adjusted gross income (AGI) …
Managing Micronutrients in HLB-Affected Trees
By Davie Kadyampakeni Nutrients are needed for optimal tree growth, fruit yields and juice quality. Any nutrient deficiencies could result in low yields and decreased revenue, so it is essential to make sure citrus trees receive adequate nutrient supplies at all times. Micronutrients, though required in minute quantities, are especially important for citrus trees impacted by citrus greening. Examples of …
Identifying HLB Therapeutics With CTV-Based Vectors
By Choaa A. El Mohtar Projected citrus production in Florida for the 2022–23 season is less than 20 million boxes. This is more than a 90% decrease compared to the 2003–04 season, which was around 292 million boxes. The main reason for the decrease is huanglongbing (HLB) disease. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus …
Adverse Effect Wage Rates Rule Challenged
In late February, the U.S. Department of Labor (DOL) pushed through a new methodology used to determine the hourly adverse effect wage rates (AEWR) for agricultural employers. The rule became effective March 30. Florida Fruit & Vegetable Association (FFVA) Director of Labor Relations Jamie Fussell discussed the action’s impact on growers: IMPACT ON EMPLOYERSSimply, the new rule may mean that …
PIECES OF THE PAST: Centennial Celebrations
By Brenda Eubanks Burnette Gap Kovach, formerly head of HESCO, recently sent me a surprise packet of goodies for the Citrus Archives that included citrus labels, the 1986 Miss Florida Citrus program and the Winter Park Public Library 1985 calendar. The calendar was in honor of the library’s centennial celebration and featured numerous Florida citrus crate labels “as a salute …





























