A new airborne insect monitoring system that has been tested in a field trial at Midura, Australia, should assist in monitoring for African and Asian citrus psyllids, which transmit HLB. The trial was conducted by Agriculture Victoria in conjunction with Citrus Australia and had two main purposes. One purpose was to test the sampling ability of the monitoring system against …
European Lemon Crop Down; Grapefruit Up
The European Union (EU) lemon crop for 2021–22 is expected to decline from the previous season while its grapefruit crop is projected to rise. LEMONEU lemon production is forecast at 1.5 million metric tons (MMT), down from the 1.7 MMT estimated for the previous season. Spain is the EU’s largest lemon producer and accounts for nearly 65% of EU production. …
A Two-Pronged Approach to Suppress Psyllids
By Bryony C. Bonning and Lukasz L. Stelinski Asian citrus psyllids (ACP) transfer the pathogen that causes citrus greening from plant to plant as they feed. After confirmation of citrus greening in Florida in 2005, growers intensified their use of insecticides against ACP to try to stop disease spread. However, this method alone has yielded variable success and increased costs. …
Water Shortage Is Latest Texas Citrus Concern
A little more than 20 inches of rain has fallen on Dale Murden’s Texas grapefruit grove in 2022 — “about average for the year,” he says. But the majority of Texas is in severe drought, and that poses problems for Murden and other Texas growers, especially for the future. “We just are not seeing any rain or significant inflows in …
The Need for New Investors in Florida Citrus
By Thomas H. Spreen As many of you know, I have been part-owner of a small citrus grove company in Florida. My long-time partner was Bob Behr, CEO of Florida’s Natural. He was a student in the first class I taught at the University of Florida in the spring of 1977. He and I made our first grove purchase in …
Slight Decrease in Hurricane Outlook
On Aug. 4, the National Oceanic and Atmospheric Administration (NOAA) slightly decreased the likelihood of an above-normal Atlantic hurricane season to 60%. That is down from 65% in the initial NOAA outlook issued in May. The likelihood of near-normal activity has risen to 30% from 25% in May, and the chances remain at 10% for a below-normal season. NOAA’s update …
Focused on Finding Solutions
By Michael Rogers As we approach a new citrus-growing season, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers and Extension agents working throughout the state renew their focus on finding solutions that growers can use in the short term to sustain their operations. While we value our longer-term research projects, efforts that provide tangible applications that …
Update to Hurricane Forecast Issued
On Aug. 4, Colorado State University (CSU) decreased its hurricane forecast for Atlantic seasonal activity and landfall strike probability for 2022. But citrus growers and other agriculturists shouldn’t relax their guard because the CSU Department of Atmospheric Science continues to call for an above-average Atlantic hurricane season. NEW PROJECTIONSCSU now forecasts the Atlantic will have 18 named storms in 2022, …
Global Citrus Production Is Up in All Categories
Brazil, China and Mexico are the top producers. Brazil easily continues to lead the world in orange and orange juice (OJ) production, while China dominates in production of tangerines/mandarins and grapefruit. Mexico remains the leading producer of lemons and limes. These facts come from a July report on world citrus issued by the U.S. Department of Agriculture’s Foreign Agricultural Service. …
Aid Available to Conserve Florida’s Natural Resources
Florida growers and others looking to make farm improvements can apply for aid from the U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS). CIGThe NRCS will invest up to $900,000 for Conservation Innovation Grants (CIG) for agricultural resource priorities in Florida. Fiscal Year 2022 conservation resource priorities for the NRCS in Florida are: climate resilience, grazing, soil health and urban …
European Orange Crop to Decline
European Union (EU) orange production is projected at 6.1 million metric tons (MMT), down from 6.5 MMT in 2020–21, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported recently. The decrease is driven by moderate production declines in Spain and Italy, which combined account for nearly 80% of total EU orange output. PLANTED AREA The forecast for total EU …
Get the Newest UF/IFAS Info at the Citrus & Specialty Crop Expo
By Jamie Burrow and Ruth Borger Over the last several months, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus team has been preparing for the annual Citrus & Specialty Crop Expo. The excitement is in the air as many faculty are preparing seminar presentations on valuable information that growers may use today to support their operations. …
CRDF Board Acts on Research Recommendations
The Citrus Research and Development Foundation (CRDF) board of directors spent much of its monthly meeting in July considering recommendations from the foundation’s research management committee (RMC). TRACKING TREESThe RMC recommended that a request for proposals be put forth to create an inventory of all germplasm existing in field trials from the plant breeding programs CRDF has helped to fund. …
European Orange Juice Production to Significantly Drop
European Union (EU) orange juice production in 2021–22 is forecast at 62,250 metric tons (MT) by the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS). That’s a decline of about 19% from the 77,212 MT of orange juice the EU produced in 2020–21. The total volume of oranges channeled to processing depends on the crop quality and quantity of oranges …
Citrus Root Structures: Lessons From Below
By Ute Albrecht There have been numerous reports of malformed roots in field-grown citrus trees recently. The rootstock propagation method is often suspected as the culprit. Before drawing quick conclusions, it is important to recognize that there are many different factors that can influence the root structure of a citrus tree aside from the propagation method. These include the genetic …
Tropicana to Cease Processing at Fort Pierce Plant
Tropicana Products Inc. advised the state of Florida in a July 15 letter that it will shut down its Fort Pierce processing plant on or about Sept. 13. The notification came in a letter from Tropicana human resources representative Jennifer Kane to the State Rapid Response Program. The program works to prevent or minimize the impacts of layoffs on workers, …
All In For Citrus Podcast, July 2022
This month’s All In For Citrus podcast focuses on the upcoming Citrus & Specialty Crop Expo scheduled for Aug. 17–18 at the Lee Civic Center in North Fort Myers, Florida. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, said the university’s citrus research team worked hard to develop …
Chinese Rootstocks Show Promise in Australia
Preliminary data from an Australian research project suggest Chinese rootstocks No. 24 and 85-24 are having a dwarfing effect on citrus tree growth and will be candidates for future high-density cropping systems. Citrus Australia reported that those rootstocks have strong potential in heavy soils, and that results on deep sandy loam soil are also very encouraging. Tahir Khurshid from the …
Pay Attention to pH for Best Nutrient Uptake
There 17 essential elements that plants need to grow. Three of those elements come to plants via water and the atmosphere. The 14 other elements come from fertilizer applications. Almost all of those are dependent on soil pH to determine how well they are picked up by plants’ root systems. Getting the soil pH just right was discussed in the …
Final U.S. Citrus Forecast Has Several Changes
The final U.S. citrus forecast of the 2021–22 season, released July 12, projected production changes for crops in Florida, California, Texas and Arizona compared to the June forecast. FLORIDAFlorida’s all-orange forecast rose 1%, to 40.95 million boxes, due to a slight increase in non-Valencia orange production and a 1% increase in expected Valencia orange production. The Florida grapefruit production forecast …





























