Global Mandarin Production Declining

Josh McGill Crop Forecast, International, Mandarins

Global production of tangerines/mandarins for 2022–23 is estimated by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) to be 36.9 million metric tons (MMT), down 900,000 metric tons (MT) from the prior year. China production, which accounts for almost 72% of global tangerine/mandarin production, is estimated to be down 2% to 26.5 MMT due to lower yields. European …

Agrobacteria Shows Promise Against HLB

Josh McGill HLB Management, Research

U.S. Department of Agriculture Agricultural Research Service (USDA ARS) scientists have discovered a way to augment a citrus tree’s natural resistance to pathogens, including HLB. The scientists are in the Crop Improvement and Genetics Research (CIGR) unit in Albany, California. According to James Thomson, a geneticist at CIGR, by incorporating receptors that can recognize pathogens, scientists are able to activate …

California and Arizona Citrus Projects Funded

Josh McGill California Corner, Research

The California and Arizona departments of agriculture received funding for four citrus-related projects from the U.S. Department of Agriculture’s (USDA) Agricultural Marketing Service (AMS) for 2023. Nationwide, USDA AMS allocated $72.9 million in Specialty Crop Block Grant Program funding. DROUGHT-TOLERANT VARIETIESThe California Department of Food and Agriculture (CDFA) received $499,921 for designing drought-tolerant specialty crops using metabolic modeling. The University …

The Status of Citrus Canker in Georgia

Josh McGill Diseases, Georgia

Citrus canker was found for the first time in Georgia this past season. Unfortunately, it may be here to stay. Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist, talked about the disease during a citrus meeting in Valdosta, Georgia, on Aug. 9. He emphasized that Georgia producers may have to learn to live with the disease …

Brown Rot Could Be on the Horizon for Florida

Josh McGill Diseases, Tip of the Week

By Megan Dewdney It is summer in Florida, and the early fruit are maturing. This is always a risky time for brown rot in early sweet oranges and grapefruit cultivars. The summer rains have been happening, but they have been intermittent depending on location. This means that phytophthora propagule counts may vary depending on how much rain has occurred in …

february

All In For Citrus Podcast, August 2023

Josh McGill All In For Citrus Podcast, HLB Management

With the trunk-injection season winding down in Florida groves, growers anxiously await to see positive results in HLB-infected trees. Two oxytetracycline (OTC) products have been approved for use in Florida citrus as HLB treatments. A third OTC formulation expects Environmental Protection Agency approval soon. Trunk-injection treatments are the focus of the latest All In For Citrus podcast. Michael Rogers, director …

Fundecitrus Researchers Honored for HLB Article

Josh McGill Awards, Brazil, HLB Management

Six Fundecitrus researchers recently received an award from the journal Tropical Plant Pathology, edited by the Brazilian Society of Phytopathology. The award is in recognition of the researchers’ work in the scientific article “Overview of citrus huanglongbing spread and management strategies in Brazil.” The researchers honored are Renato Beozzo Bassanezi, Sílvio Aparecido Lopes, Marcelo Pedreira de Miranda, Nelson Arno Wulff, …

Growers Get Update on Federal Relief Programs at Expo

Josh McGill Citrus Expo, Legislative

Matt Joyner, executive vice president and chief executive officer of Florida Citrus Mutual (FCM), reported that a group of Florida citrus growers spoke to U.S. Department of Agriculture (USDA) Farm Service Agency representatives about federal relief programs at the recent Citrus & Specialty Crop Expo. The Expo was held this year at the Florida State Fairgrounds in Tampa. “This year’s …

Doubling Down on CRISPR Research

Josh McGill Breeding

By Michael E. Rogers We have all been waiting (and waiting some more) for new varieties to be developed that are resistant to HLB. Ten years ago, researchers thought they were really close to having new HLB-resistant varieties developed using gene-editing CRISPR technology. But as science goes, the story was much more complicated than first believed. A single edit to …

Brazilian Psyllid Increase Poses Extreme Risk

Josh McGill Brazil, HLB Management, Psyllids

Brazil’s primary citrus region recorded a significant increase in the average number of HLB-spreading psyllids captured in the first half of August compared to the previous fortnight and the same period of 2022. In the citrus belt of São Paulo and Triângulo/Sudoeste Mineiro, there was an average growth of 80.4% in the capture of psyllids in the last fortnight compared …

Proposed Biosecurity Protection Levy Stuns Citrus Australia

Josh McGill International, Regulation

Citrus Australia has urged the federal government to repeal its proposed Biosecurity Protection Levy. Announced under the government’s 2023–24 budget, the levy will apply to Australian producers of agricultural, forestry and fishery products starting July 1, 2024. The levy has been set at a rate equivalent to 10% of the 2020–21 industry-led agricultural levies. This is estimated to increase receipts …

requirements

Shipping Georgia Citrus to Florida

Josh McGill Georgia, Regulation, Shipping

The Georgia Citrus Association recently provided information for Georgia growers interested in shipping their citrus to Florida.  CHECK REGISTRATIONFlorida citrus packers should be registered with the Florida Department of Agriculture and Consumer Services (FDACS) and the U.S. Department of Agriculture (USDA) if they send fruit out of Florida. The packer should have already reached out to the Florida Citrus Health …

Yellow-Legged Hornet Poses Threat to Pollinators

Josh McGill Georgia, Pests

A yellow-legged hornet (Vespa velutina), which poses a threat to honeybees and other pollinators, was recently detected near Savannah, Georgia. This is the first time a live specimen of this species has been detected in the United States. Its presence was confirmed by the Georgia Department of Agriculture (GDA), in coordination with the U.S. Department of Agriculture Animal and Plant …

Changing Weather Patterns for Georgia Groves

Josh McGill Weather

Pam Knox told Georgia growers at an August citrus meeting that their groves experience warmer temperatures on average than they would have six decades ago. “Since about 1960, annual temperature (in Georgia) has risen about 2.5 degrees Fahrenheit,” she said. Knox is the University of Georgia (UGA) Weather Network director and agricultural climatologist. According to Knox, the growing season increases …

Less Global Orange Production

Josh McGill Crop Forecast, International

Global orange production for 2022-23 is estimated by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) at 47.8 million metric tons (MMT), 5% less than the prior year. Lower production in the European Union, Turkey and the United States is only partially offset by a larger crop in Egypt. U.S. production is estimated to drop by over a …

Update on Citrus Greening in Georgia Groves

Josh McGill Georgia, HLB Management

Citrus greening disease is no longer just a problem in residential trees in Georgia. For the first time last year, citrus greening, also known as huanglongbing or HLB, was observed in commercial plantings in Pierce, Wayne and Grady counties, says Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist. Oliver discussed the disease during a citrus meeting …

Connecting Research for Better HLB Management Results

Josh McGill HLB Management, Research, Tip of the Week

By Megan Dewdney To make informed management decisions, growers need to know about and understand the findings from huanglongbing (HLB) research that are currently available. However, the delivery of research results to growers is often fragmented, and results can be difficult to find. Furthermore, what information and conclusions are available to growers from projects or scientific journals can be highly …

NOAA Increases Hurricane Activity Forecast

Josh McGill hurricane, Weather

Earlier this month, National Oceanic and Atmospheric Administration (NOAA) forecasters increased their prediction for the 2023 Atlantic hurricane season from a near-normal level of activity to an above-normal level of activity. They believe that current ocean and atmospheric conditions, such as record-level warm Atlantic sea surface temperatures, are likely to counterbalance the usually limiting atmospheric conditions associated with the ongoing …

Citrus Packinghouse Day Is Aug. 24

Josh McGill Events, Packing

Topics of interest to Florida’s fresh citrus industry will be addressed at Citrus Packinghouse Day on Aug. 24 in Lake Alfred. The event will be held at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. The free event in Ben Hill Griffin Hall will include an educational program, exhibitors and networking opportunities. …

The Benefits of Growing Citrus on UV-Metalized Reflective Mulch

Josh McGill HLB Management, Research

By Jawwad Qureshi, Lauren Diepenbrock and Davie Kadyampakeni Protecting citrus trees from the Asian citrus psyllid (ACP) is critical to reducing the spread and severity of huanglongbing (HLB) or citrus greening disease. ACP, the vector of the pathogen responsible for causing HLB in citrus, needs young shoots to develop and reproduce. The frequent availability of viable shoots in young trees …