Indian River Citrus Trial Provides HLB Insights

Josh McGillHLB Management, Research

Early results from a large-scale citrus trial looking for solutions to HLB, also called citrus greening, show tree size does not seem to affect citrus susceptibility to the disease. The trial is being conducted in the Indian River region by researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). They are testing which citrus rootstock and …

Citrus Commission Learns About HLB-Tolerant Trees, Other Research

Josh McGillFlorida Department of Citrus, HLB Management, Research

At the Florida Citrus Commission meeting earlier this month, a federal scientist outlined an eight-step action plan for research and development of heirloom orange trees that appear to be tolerant to HLB. Brian Scully, director of the U.S. Department of Agriculture’s (USDA) Horticultural Research Laboratory, discussed the Donaldson and Tobias trees at USDA’s Whitmore Foundation Farm. A third tree is …

Sneak Peek: April 2022 Citrus Industry

Josh McGillCitrus, HLB Management, Sneak Peek

Increased attention on nutrition has become part of the overall strategy for managing HLB. The April issue of Citrus Industry magazine includes several articles on nutrient management designed to help growers keep trees productive in the HLB era. Mandarin growers will want to take note of new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research on how …

How to Reduce Bingo Tree Loss to Stem Dieback

Josh McGillDiseases, Research

By Christopher Vincent, Megan Dewdney and Liliana Cano Bingo mandarin hybrid is a variety with many promising characteristics, but it brings specific challenges to profitable production. One challenge identified early in the push to plant Bingo was stem dieback that led to tree loss. After looking into this problem for the past four years, University of Florida Institute of Food …

Black Core Rot Being Studied

Josh McGillDiseases, International, Research

A new Hort Innovation project aims to shed some light on how black core rot happens in Australian groves so the citrus industry can learn how to better manage the disease. Black core rot caused by the fungus Alternaria spp. can be a problem for some citrus growers in the southern growing areas in Australia. Citrus infected with Alternaria spp. …

A Citrus Servant

Josh McGillCitrus, Research

By J. Scott Angle, jangle@ufl.edu, @IFAS_VP It’s not unusual for the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to have a dozen contacts with Peter Chaires in a day, between the emails, calls and visits. Chaires serves as executive director of the New Varieties Development & Management Corp. (NVDMC), executive vice president of Florida Citrus Packers and …

No More Satsumas: The Time Is Ripe to Diversify

Josh McGillCitrus, Florida, Georgia

South Georgia and North Florida industry leaders preached diversification to citrus growers at the Georgia Citrus Association annual conference. The event took place Feb. 28 at the University of Georgia (UGA) Tifton Conference Center. No longer should satsuma mandarins be the crop of choice for potential growers. There are other viable options for farmers to choose from, said Lindy Savelle, …

Picking Favorites at Florida Citrus Variety Display Day

Josh McGillCitrus, Florida, Varieties

The horticultural characteristics of new citrus varieties are important, especially in the era of HLB when disease tolerance is critical. But how the fruit tastes and other consumer attributes are equally important. That’s why citrus variety display days are vital in citrus breeding. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in …

Sneak Peek: March 2022 Citrus Industry

Josh McGillSneak Peek

The March issue of Citrus Industry magazine includes an abundance of advice on getting trees off to a good start. According to citrus grower Brad Turner, healthy soil is key to setting up trees for success. In his article, he gives growers pointers on soil preparation prior to planting. Other topics he addresses include mulch considerations, nutritional needs, pest management …

Be Alert for Citrus Canker in Alabama

Josh McGillCitrus, Diseases

Alabama Cooperative Extension implores growers to be on the lookout for symptoms of citrus canker disease in their trees. Commercial growers need to scout their trees regularly to stop the disease’s potential spread, says Kassie Conner, Alabama Extension specialist. “What we need people to do right now is look for these symptoms and report it if they find it,” Conner …

Focus on Australian Citrus Safety

Josh McGillCitrus, Export/Import, Food Safety, International

Citrus Australia reported on a new project focused on food safety in citrus. The project aims to mitigate microbial food-safety risks associated with the production, postharvest handling and supply of citrus to consumers in domestic and export markets. S.P. Singh with the New South Wales Department of Primary Industries will lead the project. The Australian citrus industry exports oranges and …

Outlook for Global Citrus Production

Josh McGillGlobal Perspectives, Grapefruit, International, lemons, Limes, Mandarins, Orange Juice

The U.S. Department of Agriculture Foreign Agricultural Service recently released global 2021–22 production estimates for citrus categories and orange juice. Here are highlights from the report, titled Citrus: World Markets and Trade. ORANGESGlobal orange production for 2021–22 is estimated up 1.4 million tons from the previous year to 48.8 million tons. Favorable weather is leading to larger crops in Brazil, …

Keep Leprosis From Re-entering Florida

Josh McGillDiseases, Florida

Citrus leprosis has not been reported in Florida since 1968, but researcher Ozgur Batuman called it “an approaching threat to Florida citrus” in a recent virtual seminar. Batuman, a citrus pathologist at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center, urged growers to be on the lookout for the disease. According …

European

Tangerine Crop to Climb in Turkey

Ernie NeffInternational

Tangerine production in Turkey is forecast to increase 9% in 2021-22 to 1.75 million metric tons (MMT), the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported recently. Production in 2020-21 was 1.6 MMT. High yields per tree and increasing orchard areas and bearing trees are also expected due to favorable weather conditions in the Mediterranean region. However, the yield …

Top Priority: Updating Nutrient Recommendations

Josh McGillNutrition, Research

By J. Scott Angle, jangle@ufl.edu, @IFAS_VP The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is committed to updating nutrient management recommendations for citrus. For the next two months, that means seeking state funding for the research. The UF/IFAS team was crafting a specific proposal to the Legislature as of this writing. It’s at the very top of …

Savelle

Why She Grows Citrus in Georgia

Josh McGillGeorgia, Mandarins

When Lindy Savelle ended her career in federal law enforcement, including stints overseas, she and her husband decided to move back to land they owned in South Georgia. They researched different crops they might grow and settled on citrus. She tells her story in a recent Grower Talks Podcast produced by the Georgia Fruit and Vegetable Growers Association. “Citrus is …

The State of the Citrus Industry in Japan

Ernie NeffInternational, Production

In a short summary about citrus in Japan, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reports that the country’s mandarin production continues to decline amid labor shortages and reduced consumption. Shipping challenges and rising prices are projected to reduce the consumption of largely imported oranges and grapefruit. MANDARINSTangerine/mandarin production for 2021-22 is forecast at 924,000 metric tons (MT), …

Morocco: Big Jump in Citrus Production Expected

Ernie NeffInternational

The U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) expects total citrus production in Morocco to reach an estimated 2.55 million metric tons (MMT) in 2021-22. That’s an increase of 12% over 2020-21. Tangerine/mandarin production should increase by 13% over the previous year to 1.36 MMT. Domestic consumption is expected to be 860,000 metric tons (MT), an increase of 16%. …

Japan’s mandarin

Australia Citrus Crop to Climb

Ernie NeffInternational

Citrus production in Australia is experiencing favorable conditions after above-average rainfall in all of the major growing areas in 2020 and 2021, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) recently reported. As a result, production in the country is projected to increase in 2021-22. Orange production is forecast at 535,000 metric tons (MT) in 2021-22, a 2% increase …

honeymoon phase

Georgia Citrus: Varieties and History

Ernie NeffGeorgia

University of Georgia (UGA) plant breeder Wayne Hanna released three seedless citrus trees in 2016. All carry the brand name “Frost” to identify them as UGA products. There is a tangerine (Sweet Frost), a lemon (Grand Frost) and a grapefruit (Pink Frost). Earlier this year, the trio became a quartet with the addition of a navel orange (Southern Frost). Hanna says …