fruit flies

$129.2 Million in Emergency Funds to Combat Fruit Flies

Daniel CooperPests

The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) is using emergency funding to respond to threats from growing outbreaks of exotic fruit flies. Outgoing U.S. Secretary of Agriculture Tom Vilsack approved the transfer of $129.2 million from the Commodity Credit Corporation to APHIS to directly support emergency response efforts domestically and internationally. This funding will …

grove

Grove Tours a New Feature at the Florida Citrus Show

Daniel CooperEvents, FCS24, Florida Citrus Show

When a new tool to manage HLB is discovered, it must be tested in the grove in new varieties or in treatments like trunk injection. During the afternoon of the Florida Citrus Show on March 13, attendees will have the opportunity to tour two experimental groves to see this type of research in action. Attendees will see trunk-injection therapies being …

temperature inversion

Temperature Inversion: Not a Friend of Pesticide Applicators

Daniel CooperCEU, Pesticides

By Wael Elwakil 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. Temperature inversion is a weather phenomenon that alters the natural air movement in the lower layer of the atmosphere (troposphere). …

Texas citrus

Texas Citrus Industry Assessing Freeze Damage

Daniel Cooperfreeze, Texas

By Maegan Beatty  Across the United States, farmers have faced freezing temperatures, snowstorms and unpredictable conditions this winter. Texas citrus growers are among those evaluating the effects of the most recent temperature drop.   “In regard to growers experiencing damage, we are still assessing,” said Dale Murden, president of Texas Citrus Mutual. “It’s too early to tell overall, but we will …

oxytetracycline

Lessons From Oxytetracycline Injection Trials

Daniel CooperHLB Management

By Ute Albrecht, Carol Tardivo, Gabriel Pugina, Larissa Nunes, Jasmine de Freitas and Gerardo Moreno Since the approval of oxytetracycline (OTC) injection to manage citrus greening (huanglongbing, HLB) in Florida, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant physiology team at the Southwest Florida Research and Education Center (SWFREC) has completed various research trials with multiple …

orange production

Orange Production in Chile

Daniel CooperCrop Forecast, International

Orange production in Chile is projected to increase by 2.2% and total 190,000 metric tons (MT) in 2024–25, according to a U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) report. The projected production increase is based on expected high yields and a 1.4% growth in area planted to 7,300 hectares. ACREAGE EXPANSION The area planted with oranges in Chile …

CRDF

CRDF Approves Funding for Key Research Projects

Daniel CooperCRDF, Research

Rick Dantzler, Citrus Research and Development Foundation (CRDF) chief operating officer, reported that the foundation’s January board of directors meeting was a productive one that resulted in the approval of several key citrus research projects. “We had a great meeting. The board approved funding to use a strain of Bacillus thuringiensis (Bt) to kill the progeny of psyllids,” Dantzler said. …

herbicide tolerance

Strategies for Managing Herbicide Tolerance

Daniel CooperTip of the Week, weeds

By Ramdas Kanissery Tackling herbicide tolerance in weeds is a critical aspect of effective weed control in citrus groves. It helps prevent both current and future weed management challenges. Herbicide tolerance occurs when certain weed species naturally survive and reproduce after herbicide treatment. Unlike herbicide resistance, where genetic changes allow weeds to survive and spread, herbicide tolerance doesn’t involve any …

grapefruit production

Grapefruit Production in South Africa

Daniel CooperCrop Forecast, Grapefruit, International

South African grapefruit production is expected to rise slightly in 2024–25. The U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) is forecasting a 1% increase from the prior year to 425,000 metric tons (MT). PLANTINGS Grapefruit acreage in South Africa has been shrinking since 2020–21, reflecting a downward trend in global consumption. The area planted in 2024–25 will likely …

soil health

Assessing Tools for Citrus Soil Health

Daniel CooperCover Crops, Soil Health

Soil microbiologist Sarah Strauss on Jan. 28 discussed the benefits, challenges and unknowns of cover crops, compost and humic acid for citrus soil health. Strauss is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor at the Southwest Florida Research and Education Center. She pointed out that Florida’s citrus soils are problematic because they are 98% …

Brazilian

Brazilian Orange Juice and Trade

Daniel CooperBrazil, Orange Juice, Trade

Orange juice processing and trade are among topics addressed in a recent U.S. Department of Agriculture (USDA FAS) report on Brazilian citrus.  Approximately 80% of Brazilian orange production is used for juice processing, and 20% goes to the market as fresh fruit, USDA FAS reported. Orange juice production is concentrated in the state of São Paulo, followed by Minas Gerais. …

Southern Hemisphere

Southern Hemisphere Citrus Exports Decline

Daniel CooperInternational, Trade

Total citrus exports from the Southern Hemisphere fell in 2024 after several years of marked growth. The main culprit was South Africa, which contributed two-thirds of the Southern Hemisphere’s exports at 2.23 million tons. SOUTH AFRICA South Africa is by far the main exporter of fresh citrus in the Southern Hemisphere. In this region, South Africa is traditionally the largest …

usda

USDA Funds Citrus Projects

Daniel CooperDiseases, Pests, Research

The U.S. Department of Agriculture (USDA) announced an investment of more than $70 million in the Plant Protection Act program. This includes funding of 357 projects in fiscal year 2025. The work will strengthen the country’s defenses against plant pests and diseases, safeguard the U.S. nursery system, and enhance pest detection and mitigation efforts. Part of the funding is going …

Turkish

Turkish Citrus Production to Plummet

Daniel CooperCrop Forecast, International

Production of all citrus varieties in Türkiye in 2024–25 is forecast to decline, the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) reported. ORANGES Orange production is projected to decline 30% from the prior year to 1.6 million metric tons (MMT). The decline is due to excessive hot weather conditions during the blooming period in spring 2024. Yield per …

Texas

Texas Mexfly Quarantine Areas Altered

Daniel CooperPests, Regulation, Texas

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) and the Texas Department of Agriculture (TDA) made changes to two Mexican fruit fly (Mexfly) quarantine areas in Texas on Dec. 6. They reduced the Brownsville Mexfly quarantine area in Cameron County and the Harlingen-Sebastian Mexfly quarantine area in Cameron, Hidalgo and Willacy counties. However, on Dec. 20, …

December

All In For Citrus Podcast, January 2025

Tacy CalliesAll In For Citrus Podcast, Research

Recently, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) reported research on the development of a new type of citrus tree that can fight off the HLB-spreading Asian citrus psyllid (ACP). The genetically modified tree has only been tested in the lab and the greenhouse, but the research looks promising. The approach involves inserting a gene into …

Sneak Peek: February 2025 Citrus Industry

Tacy CalliesSneak Peek

The citrus section in the February issue of Specialty Crop Grower is coming soon. It’s full of features for growers to dive into. First up is part two of results from the Florida Citrus State of the Industry Survey. (See part one here.) Learn out what percent of growers say they are replanting and how many are participating in the …

Protect Trees Post-Freeze With Fungicide

Tacy CalliesCold Hardy, Diseases, freeze

Growers in the cold-hardy citrus region should consider fungicide application following snow last week and multiple days of running irrigation for freeze irrigation. That advice comes from Lindy Savelle, executive director of the Georgia Citrus Association, on the heels of historic snowfall recorded across the Southeast. “I’ve heard some people having up to 10 inches of snow where we grow …

Agriculture and a New Administration

Daniel CooperEvents, FCS24, Florida Citrus Show

The new year is off and running at a brisk pace. The Trump administration came to office with a large agenda and has begun to put it into action. With a new administration at the helm, now is a good time to assess how policies and economics could affect agriculture. Danny Munch will be speaking at this year’s Florida Citrus …

orange production

Orange Production in Egypt

Daniel CooperCrop Forecast, International

The U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS) has forecast Egypt’s orange production to decrease by almost 12% in 2024–25, to 3.7 million metric tons (MMT). The decrease is attributed to higher temperatures for long periods at the beginning of the fruit set, which negatively impacts production. Most of Egypt’s orange production comes from commercial farms on reclaimed desert …