remobilization

Seasonal Differences in Bark and Leaf Nitrogen Remobilization

Daniel CooperNutrition, Research

Recent research indicates that citrus bark and mature leaves have significantly different nitrogen remobilization patterns. Study authors are Huaye Xiong, Bin Hu, Jie Wang, Xing-Zheng Fu, Yueqiang Zhang, Xiaojun Shi and Heinz Rennenberg, all with Southwest University in China. Here is the article summary: Seasonal nitrogen (N) storage and remobilization are critical for tree growth. Deciduous trees primarily store N …

2025–26

First U.S. Citrus Crop Forecast Issued for 2025–26

Daniel CooperCrop Forecast

The first federal forecast of the 2025–26 citrus season, issued Jan. 12, calls for continued decreased production of Florida oranges and grapefruit. The Florida lemon forecast increased and exceeds the state’s tangerine/mandarin forecast, which is flat. Other citrus-producing states are also included in the forecast, which was issued by the U.S. Department of Agriculture National Agricultural Statistics Service (NASS). FLORIDA …

Peruvian

Peruvian Mandarin Production

Daniel CooperCrop Forecast, International, Mandarins

The U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) projects Peruvian tangerine/mandarin production in 2025–26 at 570,000 metric tons (MT), the same as the prior year. VARIETIES Tangerine/mandarin varieties in Peru include: The market for exports is dominated by easy peelers and seedless varieties including Murcott, Tango, Primosole, Clementine, Minneola and Orri. Peru’s main harvest season runs from March …

lemon production

The State of Lemon Production in Argentina

Daniel CooperCrop Forecast, International, lemons

Argentina’s lemon production for 2025–26 is projected to remain steady at 1.9 million metric tons (MMT) by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). That projection is supported by mild weather conditions throughout the growing cycle. Lemon production in 2024–25 was 1.91 MMT. IMPROVEMENTS AND CHALLENGES Over the past decade, the Argentine lemon sector has benefited from …

pest management

Planning Pest Management for Florida Citrus in 2026

Daniel CooperPests, Tip of the Week

By Lauren Diepenbrock Pest management is a year-round challenge in Florida citrus. But with knowledge of insect, mite and snail seasonal biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of some highly problematic pests (Asian citrus psyllid and citrus leafminer) generally increase with flush/new growth development, so targeting peak …

marketing

Florida Citrus Marketing Efforts Updated

Daniel CooperFlorida Department of Citrus, Marketing

The Florida Citrus Commission’s (FCC) Global Marketing Committee in December provided an update on all Florida Department of Citrus (FDOC) marketing programs. The FCC, appointed by Florida’s governor, is the FDOC’s governing board.  ORANGE JUICE Marketing programs for orange juice (OJ) included ongoing activities with the Tampa Bay Lightning and a media event held in New York City on Dec. …

Florida Citrus Extension Agent Retiring

Daniel Cooperextension

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently announced the pending retirement of multi-county citrus Extension agent Chris Oswalt. Oswalt has been the agent for Polk and Hillsborough counties for decades. Michael Rogers, UF/IFAS statewide citrus research and Extension coordinator, said Oswalt “has faithfully served and greatly benefited numerous growers, researchers and his fellow Extension agents.” …

guide

Updated Australian Citrus Guide Available

Daniel CooperDiseases, Pests, Research

The new Citrus Plant Protection Guide 2025-26 from Australia’s New South Wales Department of Primary Industries and Regional Development (NSW DPIRD) is available online. The seventh edition of the guide provides up-to-date information on all aspects of managing pests and diseases in citrus orchards and includes updates on NSW DPIRD projects. Some of the projects are funded by Hort Innovation …

Rural and Family

Rural and Family Lands Protection Program Accepting Applications

Daniel CooperLand

The Florida Department of Agriculture and Consumer Services (FDACS) has announced the opening of an application cycle for landowners to apply to the Rural and Family Lands Protection Program. The program partners with farmers and ranchers through rural lands protection easements to preserve working agricultural operations. Landowners can learn more about the program and submit applications here through Jan. 23, …

regenerative pilot

Regenerative Pilot Program To Improve Soil, Water and Productivity

Daniel Coopersoil, Water

The U.S. Department of Agriculture (USDA) announced a $700 million Regenerative Pilot Program to help American farmers adopt practices that improve soil health, enhance water quality and boost long-term productivity. “Protecting and improving the health of our soil is critical not only for the future viability of farmland, but to the future success of American farmers,” U.S. Secretary of Agriculture …

sales

Florida Citrus Sales Continue To Take a Hit

Daniel CooperFresh, Orange Juice, sales

The Florida Citrus Commission (FCC) on Dec. 17 heard about the continued declining sales of fresh Florida citrus and orange juice (OJ). Marisa Zansler, director of economic and market research for the Florida Department of Citrus (FDOC), presented the sales reports. The FCC serves as the governing board for the FDOC, which is tasked with marketing, research and regulation of …

program

CRAFT Issues Program Updates

Daniel CooperCRAFT

The Citrus Research and Field Trial (CRAFT) Foundation recently reported it has already issued more than $12 million in grower payments for CRAFT Year 7 programs and completed more than 600 contracts. Executive Director Steven Hall issued the following program updates:  FAST TRACK PROGRAM CYCLE 7 TRADITIONAL PROGRAM EMERGING VARIETIES PROGRAM CRAFT expects to begin issuing contracts for the Emerging …

changes

Quarantine Changes for California and Texas

Daniel CooperPests, Regulation

Federal and state agriculture officials recently made changes to huanglongbing (HLB, also known as citrus greening disease) and Mediterranean fruit fly (Medfly) quarantines in California. They also removed a Mexican fruit fly (Mexfly) quarantine in Texas. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) reported these changes. CALIFORNIA HLB On Nov. 25, APHIS and the California …

quality

Brazil’s Orange Crop Forecast Drops Again

Tacy CalliesBrazil, Crop Forecast

Fundecitrus’ Dec. 10 orange crop forecast for the São Paulo and Triângulo/Southwest Minas Gerais Citrus Belt in Brazil is for 294.81 million boxes of oranges. That’s a reduction of 3.9% from the September forecast of 306.74 million boxes and a 6.3% reduction from the initial May forecast of 314.6 million boxes. The two main reasons for the reduction in the …

citrus Extension

Citrus Extension Agents Encourage Growers to Engage With Their Services

Daniel Cooperextension

Florida citrus Extension agents are a conduit to growers, connecting them with the educational and support resources of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Recently, two of those agents held stakeholder meetings to seek input from growers on areas where they would like to see more education and assistance from UF/IFAS. Alissa Hevesh is the …

Northern Hemisphere

Northern Hemisphere Citrus Forecast Released

Daniel CooperCrop Forecast, International

The World Citrus Organisation (WCO) has released its annual Northern Hemisphere citrus forecast for the 2025–26 season. The preliminary forecast is based on data from industry associations from the Mediterranean region and the United States. Citrus production for 2025–26 in the Northern Hemisphere is expected to decrease by 1.51% from the 2024–25 season, with a total of 27.397 million tons. …

waters

Proposed Waters of the U.S. Rule to Provide Clarity

Daniel CooperAgriculture, Regulation, Water

The Environmental Protection Agency (EPA) and the Department of the Army have announced a proposed rule that would define waters of the United States (WOTUS) under the Clean Water Act. EPA stated that the rule would protect America’s waters while providing the regulatory certainty needed to support farmers. According to EPA, the rule, when finalized, will cut red tape and …

inflammatory

Anti-Inflammatory Potential of Citrus Unlocked

Daniel CooperResearch

Scientists at The University of Alabama (UA) have developed a bio-engineered molecule that uses a natural citrus compound to both target and treat inflammation. Naringenin, a flavonoid found in citrus fruit, has long been recognized for its anti-inflammatory and antioxidant properties. However, the human body does a poor job of absorbing the compound in the form of food or currently …

usda

USDA Amends Brix Standards to Align With FDA

Daniel CooperOrange Juice, Regulation

The U.S. Department of Agriculture Agricultural Marketing Service (USDA AMS) is amending the U.S. Standards for grades of orange juice (OJ) by changing the limits for Grade B Brix allowances in pasteurized OJ (POJ). The change will align with the Food and Drug Administration’s (FDA) Standard of Identity (SOI) for POJ. The Brix allowances under the U.S. OJ standards are …

CRDF

CRDF Considers Research Management Committee Recommendations

Daniel CooperCRDF, Research

The Citrus Research and Development Foundation (CRDF) convened its November board of directors meeting to take up recommendations from its Research Management Committee. According to Rick Dantzler, CRDF chief operating officer, one of those recommendations was funding a proposal from Swadesh Santra, who is a professor of chemistry with the University of Central Florida. “This funding would allow Dr. Santra …