nutrition

Nutrition Management Program Yields Results

Ashley RobinsonNutrition

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have found that following nutrition and irrigation guidelines designed for a specific grove will help growers promote tree health and produce high-quality citrus. Last year, UF/IFAS scientists offered Florida growers a unique nutritional counseling program, commonly referred to as the nutrition box program. It provides free soil and leaf …

citrus crop

More Shrinkage for Brazil’s Orange Crop

Tacy CalliesBrazil, Crop Forecast

On Feb. 10, Fundecitrus and its cooperators released an update to Brazil’s 2020–2021 orange crop forecast. The forecast is now 269.01 million boxes, down slightly from the 269.36 million boxes forecast in December. While production of the Pera Rio variety increased 3.74 percent to 81.83 million boxes, Valencia and Valencia Folha Murcha production decreased 2.8 percent to 91.72 million boxes. …

citrus

Orange Production to See Global Increase

Tacy CalliesCrop Forecast

Global orange production for 2020–21 is forecast to rise 3.6 million metric tons from the previous year to 49.4 million metric tons. Favorable weather leading to larger crops in Brazil and Mexico will offset declines in Turkey and the United States, according to the U.S. Department of Agriculture’s Foreign Agricultural Service. Consequently, consumption, processing fruit and fresh exports are also …

UF/IFAS VP Scott Angle on HLB Efforts

Tacy CalliesHLB Management, Research

Florida’s citrus growers are counting on research to help sustain what’s left of an industry decimated by huanglongbing (HLB). The disease remains a focal point of research at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Scott Angle, vice president for agriculture and natural resources at UF/IFAS, understands the ramifications if improved HLB management options aren’t available …

Scout Early Bloom for PFD

Tacy CalliesCitrus, Diseases, Tip of the Week

By Andre B. Gama and Megan M. Dewdney Postbloom fruit drop (PFD) of citrus is a disease caused mostly by the fungus Colletotrichum acutatum. This fungus survives by producing resting structures on leaves and stems. When flowers start to appear in groves, these resting structures produce spores that can cause PFD. However, the fungus requires specific weather conditions to be …

Foliar Disease Management in 2021

Tacy CalliesDiseases

By Megan Dewdney There were many challenges in 2020, but fortunately the Florida season for foliar citrus diseases was relatively normal. Little to no postbloom fruit drop (PFD) was reported during the 2020 bloom because of a sudden dry spell as the flowers opened. As spring 2021 approaches, the forecast is for a La Niña weather pattern with slightly warmer …

Update on Florida OJ Supply and Demand

Tacy CalliesOrange Juice

In the Feb. 3 Florida Citrus Commission meeting, Marisa Zansler, Florida Department of Citrus director of economic and market research, provided an update on Florida orange juice (OJ) movement and availability. External trends, such as fruit drop and increased demand during the pandemic, may significantly impact the availability of orange juice throughout the season. Coming into the 2020–21 season, beginning …

Wind Damages California Lemons

Len WilcoxCalifornia Corner, Weather

Wind damage sustained last week in California is still being assessed by county agriculture commissioners in San Diego and Ventura counties. However, damage appears to be limited to lemons and avocados. The wind damage was the result of a series of storms that swept through Southern California last week. The region experienced strong winds with gusts of nearly 100 mile-per-hour …

Uncle Matt’s Launches E-Commerce Site

Tacy CalliesIndustry News Release

Uncle Matt’s Organic® has made its juices and functional beverages accessible to more consumers with the launch of a new e-commerce site. Currently, shipping is available to most of the East Coast, with plans to expand nationwide. The online store brings organic orange juice, lemonade and functional beverage bundles directly to consumers’ doors in one to two days via FedEx. Because …

Seminar to Address Fruit Drop Questions

Tacy CalliesFruit Drop

Citrus fruit drop before harvest has been a perennial problem for Florida growers but has been particularly challenging this season. Tripti Vashisth and Fernando Alferez of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will present their latest research on fruit drop and answer questions from growers in a Zoom seminar on Feb. 16. The seminar is …

Cold Acclimation and Leaf Freezing Temperatures

Tacy CalliesWeather

Citrus Extension agent Chris Oswalt reports the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is determining the acclimation of Florida citrus trees to cold weather by measuring citrus leaf freezing temperatures. “Certain environmental conditions will initiate this acclimation process,” says Oswalt. “These environmental cues will cause physiological changes to occur within the plant that will depress the …

Time to Cut the Dead Wood

Tacy CalliesTip of the Week

By Megan Dewdney, Tripti Vashisth and Lauren Diepenbrock Dead wood has long been challenging for fresh citrus fruit production. Spores in twigs can form which cause blemishing diseases that downgrade fruit for lower profits. More recently, it has come to light that there are horticultural and entomological reasons to remove this wood as well. Many growers are familiar with melanose, …

Making Sense of Biologicals: Interest Increasing in Biologicals

Tacy CalliesBiologicals, MSOB

By Clint Thompson Increased interest in biologicals stems from their long-term sustainability and the belief that synthetic materials have reached their ceiling of productivity. Tate McPherson, vice president of marketing and business development at Douglas Plant Health (DPH), shares those sentiments about biologicals, which represent a group of products derived from living organisms. Farmers utilize these environmentally friendly products in …

The Goals of Pest Management

Josh McGillCEU

By Ajia Paolillo 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. Integrated pest management (IPM) uses a combination of methods to keep pest populations at an acceptable level, which are economical …

Pieces of the Past: Waverly’s Window

Tacy CalliesPieces of the Past

By Brenda Eubanks Burnette I grew up in Winter Haven and have driven by Waverly Growers Cooperative countless times when traveling around Polk County. But I never knew that at one time there was a formal garden and picnic grounds adjacent to the Waverly Welcome House.  Founded in 1914 by a group of local growers led by Charles Hillery Walker …

CRDF Selects Rootstocks for Trials

Tacy CalliesCRDF

The Citrus Research and Development Foundation (CRDF) directors recently ratified the rootstock selections for the planned rootstock field trials and discussed the organization’s involvement in future research, CRDF Chief Operating Officer Rick Dantzler reported. The board ratified 10 rootstock selections for the new field trials, overseen by CRDF’s Select Committee on Plant Improvement. According to Dantzler, the field trials will evaluate …

Soilless Substrate Project Update

Ernie NeffResearch

By Jeb Fields (Editor’s Note: A previous Citrus Industry article described a Soilless Substrate Science project led by Jeb Fields, assistant professor and Extension specialist at the Louisiana State University Agricultural Center. The article noted that citrus growers are beginning to explore the potential of soilless culture. This is an update to that article.) Initially we had envisioned a physical …

Advice for Using Soil Moisture Sensors

Tacy CalliesIrrigation, Technology

Proper irrigation management is key to optimize water use and increase crop yield. Water is a limiting factor in Florida citrus production during most of the year due to extremely sandy soils with low water-holding capacity and non-uniform distribution of rainfall. Soil moisture sensor systems may provide the most reliable data for effective citrus irrigation scheduling under these conditions. Rad …

china

Production of OJ to Climb in Europe

Ernie NeffInternational, Orange Juice

European Union (EU) orange juice (OJ) production is forecast to climb almost 8 percent in 2020-21 compared to the previous year, to 87,987 metric tons, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. The forecast is in line with the expected growth in the volume of European oranges destined for processing this season, especially from Spain and Italy. …

fresh

Research Projects on OJ Recommended for Approval

Tacy CalliesOrange Juice, Research

The Scientific Research Advisory Committee met Jan. 21 to review recent updates from the Florida Department of Citrus (FDOC) and to review and recommend to the Florida Citrus Commission (FCC) for approval two new research proposals. The FCC serves as the FDOC’s governing board. Rosa Walsh, director of the FDOC Scientific Research Department, gave an update on the 2020–2025 Dietary …