weed management

Brassinosteroid and Weed Management Research Updated

Daniel CooperHLB Management, weeds

Brassinosteroids for HLB-infected trees and the latest on year-round weed management were discussed at a Jan. 17 OJ Break at the Citrus Research and Education Center in Lake Alfred, Florida. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Chris Oswalt hosted the event. UF/IFAS assistant professors Fernando Alferez and Ramdas Kanissery made the presentations …

assessment

Korea’s Mandarin Production

Daniel CooperInternational, Mandarins

Korea’s production of tangerines and mandarins — virtually the country’s only commercial citrus — is forecast at 570,000 metric tons by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). That’s a 2.1% decline from the previous year’s 582,000 MT. The decline is driven by lower yield for open-field tangerines, decreased fruit set per tree and a slight reduction …

taxation

Efforts to Eliminate Multiple Ag Taxation in Florida

Daniel CooperAgriculture, Florida, Legislative

Florida Commissioner of Agriculture Wilton Simpson joined two state legislators Jan. 8 in announcing legislation to eliminate multiple taxation of agricultural production by annual local property taxes. Simpson, Sen. Jay Collins and Rep. Danny Alvarez announced the filing of a joint resolution, HJR 1251 and SJR 1560. The proposed constitutional amendment creates a total tax exemption of tangible personal property …

waxing

Waxing the Right Way

Daniel CooperFresh

An article about citrus waxing was recently published by Citrus Australia. The article, written by John Golding, a research horticulturist with the New South Wales Department of Primary Industries, is summarized here. Waxing citrus can help maintain quality and enhance the fruit’s appearance. However, using the wrong type of wax or applying an excessively thick layer can overly restrict gas …

citrus forecast

Aging Farmers Contribute to Japan’s Citrus Downtrend

Daniel CooperCrop Forecast, International

Japan’s citrus planted area and production are on a long-term downward trend. Reasons cited by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) are aging farmers, labor shortages and a lack of successors for running farms. In a December annual report, USDA FAS summarized production, planted area and trade for each of Japan’s citrus varieties. TANGERINES/MANDARINS After a …

psyllids

New Discovery About Asian Citrus Psyllids

Daniel CooperHLB Management, Psyllids, Research

A failed field test has led to a major discovery about Asian citrus psyllids (ACP). According to new research, the bacterium that causes HLB disease can interfere with ACP’s sense of smell, rendering some kinds of insect traps useless. The work is currently available as a preprint. HLB, also known as citrus greening, is caused by the Candidatus Liberibacter asiaticus (CLas) bacterium. …

Australian

Australian OJ Production Projection

Daniel CooperInternational, Orange Juice

Australian orange juice (OJ) production in 2023–24 is forecast at 15,400 metric tons (MT) by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). That’s a decrease of 4% from the 2022–23 estimate of 16,100 MT. Higher production and improved fruit quality for fresh oranges is anticipated in 2023–24, resulting in a lower volume of rejected fruit channeled toward …

pesticide resistance

Preventing Pesticide Resistance

Daniel CooperPesticides, Pests

By Lourdes Pérez Cordero Insects in general are often thought of as pests. Although some organisms of the class Insecta can become harmful to important agricultural crops, not all insects should inherently be considered pests. A pest can be any organism that competes, injures, or spreads diseases to humans, domestic animals and desired plants. Historically, humans have utilized chemical mixtures …

frost season

Frost Season Arrives in California

Daniel CooperCalifornia Corner, Weather

California Citrus Mutual (CCM) recently reported that the 2023 frost season is underway for the state’s San Joaquin Valley citrus growers. “That means growers will be closely monitoring weather forecasts to prepare for any cold spells that may sweep through the valley in the coming months,” the citrus growers’ trade association stated.  Although long periods of below-freezing temperatures are of …

program

Ag Groups Want Changes to Emergency Relief Program

Daniel Cooperfinancial, hurricane, Legislative

The Florida Fruit & Vegetable Association (FFVA) was among more than 140 U.S. agriculture organizations that recently urged the U.S. Department of Agriculture (USDA) to revise the Emergency Relief Program (ERP) for 2022. In 2022, President Biden signed into law appropriations legislation providing $3.74 billion in ERP assistance to agricultural producers impacted by numerous natural disasters in 2022. FFVA and …

field

Rootstocks and More Showcased at Field Day

Daniel CooperEvents, Rootstocks, Varieties

In early December, the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) hosted its annual A.H. Whitmore Foundation Farm field tour and variety display in Groveland, Florida. The event was well attended and showcased the USDA-ARS citrus scion and rootstock breeding program. Attendees loaded up for a hayride and guided tour through the grove. One stop showcased the cooperative work the …

speech contest

Julia C. Black Memorial Speech Contest and Scholarship Announced

Daniel CooperEducation, Scholarship

Florida Citrus Mutual has announced its inaugural Julia C. Black Memorial Speech Contest and Scholarship. Its intent is to encourage students to learn more about Florida’s agriculture industry, specifically Florida citrus, and to support high school students with scholarship funds. The application deadline for students in grades 9–12 is Dec. 30, 2023. The speech contest will include two phases: district …

Florida citrus

IPCs on More Than a Million Florida Citrus Trees

Daniel CooperIPCs

As recently as five years ago, Florida citrus growers did not routinely put individual protective covers (IPCs) on their trees as part of their grove management. Now, the mesh IPCs cover at least 1 million trees on about 17,000 acres, mostly thanks to experimentation by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Fernando Alferez. IPCs keep …

monitoring

Improved Monitoring of Citrus Maturity

Daniel CooperInternational, Research

A new approach developed primarily by Chinese researchers allows for more precise monitoring of citrus fruit development and optimal harvest timing. A key to improving citrus fruit quality and post-harvest processes is understanding citrus color change, a critical indicator of fruit maturity that is traditionally gauged by human judgment. Recent machine vision and neural network advancements offer more objective and …

insecticide

Timing Insecticide Applications for Best Effects

Daniel CooperPests, Tip of the Week

By Lukasz Stelinski Here are some basic guidelines that growers can follow to manage pests successfully and economically in their groves: Take-home messages include the following: Lukasz Stelinski is a professor at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center in Lake Alfred. Sponsored ContentTake Advantage of Rising Temperatures to Treat for Fire AntsJuly …

greening-resistant

Brazil’s Orange Forecast Declines

Daniel CooperBrazil, Crop Forecast

The updated forecast for the 2023–24 orange crop in Brazil’s citrus belt is 307.22 million boxes of 40.8 kilograms each. That’s a reduction of 2.12 million boxes, or 0.7%, from the September forecast of 309.34 million boxes. The update was issued Dec. 11 by Fundecitrus in cooperation with its partners. The forecast, by varieties, is: IMPACTS ON FRUIT SIZE In …

hall of fame

Florida Citrus Hall of Fame Inductees Named for 2024

Daniel CooperAwards

The Florida Citrus Hall of Fame has announced its Class of 2024 inductees. They are Robert M. “Bob” Behr of New Smyrna Beach, George H. Streetman of Vero Beach and Leland K. Young, formerly of Bartow. They will be inducted March 1, 2024, along with the Class of 2023 inductees. The induction ceremonies and a luncheon will be held at …

data

Enhancing Smart Irrigation With Centralized Data

Daniel CooperIrrigation, Technology

By Sandra M. Guzmán Efficient irrigation management is crucial in optimizing tree growth and promoting sustainable management practices in modern agriculture. This article introduces IrrigMonitor, an Internet of Things data visualization platform developed at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) Smart Irrigation and Hydrology Lab. IrrigMonitor is a …

citrus forecast

Improvements to Florida Citrus Forecast

Daniel CooperCrop Forecast, Florida

In the Dec. 8 citrus forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS), Florida’s grapefruit and tangerine/tangelo production estimates increased. The all-grapefruit forecast for Florida leaped 26% compared to the season’s initial forecast in October. The state’s tangerine and tangelo forecast climbed 10%. All other variety forecasts in the citrus-producing states — Arizona, California, Florida …

assistance

Georgia Counties Eligible for Disaster Relief

Daniel Cooperfinancial, Georgia, hurricane

The U.S. Department of Agriculture (USDA) has designated numerous Georgia counties as eligible for disaster relief for a variety of reasons. DROUGHT USDA designated 20 Georgia counties as primary natural disaster areas due to recent drought conditions. This allows the USDA’s Farm Service Agency (FSA) to provide emergency loans to producers recovering from natural disasters. Producers in primary and contiguous counties have …