Trialing Tree Immunizations for HLB, Xylella

Josh McGillHLB Management, International, Research

Australia’s Hort Innovation has announced an $8.7 million investment to trial tree immunizations that protect Australia’s horticulture industries against the deadly huanglongbing (HLB) and Xylella diseases (including citrus variegated chlorosis). Hort Innovation is a grower-owned, not-for-profit research and development corporation for Australia’s horticulture industry. Hort Innovation Chief Executive Brett Fifield said the investment aims to safeguard key Australian horticulture industries by …

Prepare for the Possibility of Postbloom Fruit Drop 

Josh McGillDiseases, Tip of the Week

By Megan M. Dewdney Postbloom fruit drop (PFD) is a sporadic flower disease. It is primarily caused by the fungus Colletotrichum acutatum. While infections only occur on flowers, the fungus is present on trees throughout the year. It survives by producing resting structures on leaves and stems. How the inoculum survives multiple years between infections is still unclear. The fungus …

Natural Compounds Might Fight HLB

Josh McGillHLB Management, Research

The U.S. Department of Agriculture (USDA) has awarded Florida International University (FIU) scientists $500,000 to investigate natural compounds that could suppress or even eliminate the bacteria that causes HLB. FIU Institute of Environment researcher Kateel Shetty is leading the search for an antimicrobial compound that could help citrus growers. The FIU team’s theory is that if they can identify a …

Drought to Cut Argentine Lemon Production

Josh McGillCrop Forecast, International, lemons

Due to a drought, lemon production in Argentina is forecast to decline to 1.77 million metric tons (MMT) in 2022–23, down 130,000 metric tons (MT) from the prior year. The drought is expected to continue through the Southern Hemisphere summer of 2023 due in part to the third La Niña weather pattern in a row. The forecast was issued by …

Legislation Introduced in Hurricane Relief Effort

Josh McGillhurricane, Legislative

Rep. Scott Franklin (FL-18), Rep. Debbie Wasserman Schultz (FL-25) and Sen. Rick Scott (R-FL) introduced the Block Grant Assistance Act of 2023, a critical bill to ensure the U.S. Department of Agriculture (USDA) can provide needed relief to agriculture producers devastated by Hurricanes Ian and Nicole. This bill will provide the agriculture secretary needed authority to provide block grants to …

Trunk Injection for HLB: What You Need to Know

Josh McGillHLB Management

Some Florida citrus growers have recently started oxytetracycline hydrochloride (OTC-HCl) injection into tree trunks to help manage HLB. Other growers are considering it. Researcher Ute Albrecht offered a list of best practices for the product’s use during a Jan. 31 presentation in Immokalee. The presentation was made at the University of Florida Institute of Food and Agricultural Sciences Southwest Florida …

Orange Light: New Name for Uncle Matt’s Product

Josh McGillIndustry News Release, Orange Juice, Organic

Uncle Matt’s Organic is reintroducing its Matt50™ Orange Juice (OJ) Beverage as Orange Light. Orange Light contains half the sugar and calories as regular OJ. It is boosted with vitamin C, plus prebiotics and probiotics for gut health and immune support. Orange Light is available at Whole Foods Market and Sprouts Farmers Market locations nationwide and is also available for purchase directly …

Key Terms to Know When Using Pesticides

Josh McGillCEU, Pesticides

By Ajia Paolillo Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. As a certified restricted-use pesticide applicator, it is your responsibility to use pesticides safely, not only for yourself but for …

global

Florida Growers to Vote on Marketing Order Amendments

Josh McGillMarketing, Regulation

The U.S. Department of Agriculture (USDA) will conduct a referendum April 3–May 1 on proposed amendments to the federal marketing order regulating the handling of oranges, grapefruit, tangerines and pummelos grown in Florida. Notice of the referendum was published in the Federal Register on Jan. 18, 2023. The proposed amendments would include reducing the size and quorum requirements of the …

Sting Nematodes and IPCs

Josh McGillIPCs, Pests, Tip of the Week

By Larry Duncan and Fernando Alferez Newly planted citrus trees are far less tolerant of pests and diseases than when mature. Sting nematode (Belonolaimus longicaudatus) was not considered a serious economic threat to Florida citrus until successive hard freezes in the 1980s caused widespread replanting of groves. Patches of stunted, declining trees caused by the irregular distribution of sting nematodes …

Oranges and OJ in China: Production and Trade

Josh McGillChina, Crop Forecast, Orange Juice

Orange production in China is expected to increase in 2022–23 over the prior year, while its orange juice (OJ) production is forecast to decline. The forecast was issued by the U.S. Department of Agriculture Foreign Agricultural Service (USDAFAS). ORANGESChina’s orange production in 2022–23 is forecast to reach 7.6 million metric tons (MMT), up from 7.55 MMT the prior year. The …

European Orange and OJ Production

Josh McGillCrop Forecast, International, Orange Juice

European Union (EU) production of oranges and orange juice (OJ) are projected to decline in 2022–23 from the prior year, the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) projected. ORANGESOrange production in the EU is forecast at 5.8 million metric tons (MMT) in 2022–23, a 12% reduction from the prior season. The decline is mainly explained by production …

CRDF

CRDF Board Off to a Busy Start in 2023

Josh McGillCRDF, Research

The Citrus Research and Development Foundation (CRDF) kicked off the year with its monthly board meeting in January. The board invited three researchers who had submitted pre-proposals to submit full proposals during the meeting. One proposal will study if the ingestion of oxytetracycline hydrochloride (OTC-HCl) will minimize the amount of Candidatus Liberibacter asiaticus (CLas) in the gut of “hot” (or …

Mandarin Production in Japan

Josh McGillCrop Forecast, International, Mandarins

Tangerine/mandarin production in Japan for 2022–23 is forecast at 921,000 metric tons (MT), down 3.5% compared to the prior year. Tangerines/mandarins account for a majority of Japan’s citrus production, and the Unshu is expected to be the leading mandarin variety at 722,000 MT. Non-Unshu varieties are forecast at 199,000 MT. The forecast was issued by the U.S. Department of Agriculture …

Costa Rican

Mexican Orange Production and Trade

Josh McGillCrop Forecast, Mexico, Orange Juice

Mexican orange production in 2022–23 is forecast at 4.2 million metric tons (MMT), 9% lower than the previous year, due to prolonged drought in northeastern Mexico. The forecast was issued by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). Mexico is estimated to be the fifth-largest orange producer in the world behind Brazil, China, India and the United …

Planning Your 2023 Pest Management

Josh McGillPest Management, Tip of the Week

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 …

Significant Decline in Turkey Orange Production

Josh McGillCrop Forecast, Export/Import, International

Orange production in Turkey is forecast at 1.4 million metric tons (MMT) in 2022–23, a decline of 20% from the prior year production of 1.75 MMT. The forecast by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) blames the decline on freezing weather during the beginning of the orange blossoming period in March 2022. The yield loss is …

Guidelines for ReMedium TI Use

Josh McGillHLB Management, Pesticides

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 …

Investing in Artificial Intelligence

Josh McGillBreeding, Technology

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 …

Argentina Orange and Tangerine Update

Josh McGillCrop Forecast, International

Orange production in Argentina in 2022–23 is expected to fall to 800,000 metric tons (MT) compared to 830,000 MT the prior year. Tangerine production is projected to remain at 380,000 MT. The forecast was issued by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). La Niña-related drought is expected to have a negative effect on fruit production, especially …