grading

Improving Automated Citrus Grading

Daniel CooperPacking, Technology

New research in China suggests that combining traditional color cameras with near-infrared imaging could make automated citrus grading systems much better at detecting surface defects. The technology has the potential to improve packhouse efficiency, reduce the number of defective fruit reaching consumers and help growers maximize the value of their crop. The study, published in the journal Agriculture, was conducted …

Citrus leafminer

Citrus Leafminers Are Back in Georgia

Daniel CooperGeorgia, Pests

Apurba Barman, assistant entomology professor at the University of Georgia (UGA), recently wrote about citrus leafminer (CLM) damage resuming in Georgia groves. His article provided management recommendations, including timing of insecticides. Edited excerpts follow: PEST DAMAGE As the temperature rises, so does the potential for CLM attack. CLM is a serious pest resulting in feeding damage to young shoots and …

industry

Pressures Impacting the Brazilian Citrus Industry

Daniel CooperBrazil, Production

Shifts in the international geopolitical landscape, rising logistics costs, sanitary barriers and currency fluctuations are directly impacting Brazil’s fruit industry, including citrus. The effects of these transformations were discussed during a recent edition of the Socioeconomics Debates series, hosted by Embrapa, under the theme, Brazil’s Fruit Industry: How Global Crises Impact What Reaches Your Table. Researchers, economists and production representatives …

June

All In For Citrus Podcast, May 2026

Daniel CooperAll In For Citrus Podcast, Irrigation

After significant drought in many parts of Florida, some much-needed rainfall began in May as the rainy season approaches. That seasonal transition, from a grove management perspective, is the focus of the May episode of the All In For Citrus podcast. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education …

projects

Citrus Projects Funded by Plant Protection Act

Daniel CooperPests, Research, USDA

The U.S. Department of Agriculture (USDA) announced an investment of more than $90 million under Section 7721 of the Plant Protection Act to support 441 projects that will: Of the 441 projects, 421 fall under the Plant Pest and Disease Management and Disaster Prevention Program and 20 support the National Clean Plant Network. USDA will reserve approximately $17.2 million to support rapid …

Florida

Florida Citrus Show: A Day of Education and Enjoyment

Daniel CooperEvents, Florida Citrus Show

The Florida Citrus Show marked another successful event in March in Fort Pierce. The show provided attendees with a fun, informative day to learn about citrus and specialty crops while engaging with exhibitors during the tailgate-style trade show. CRAFT UPDATE Citrus Research and Field Trial (CRAFT) programs have been very popular with growers and have incentivized new citrus plantings across …

ecological mowing

Cover Crops, Ecological Mowing Benefit Citrus

Daniel CooperBrazil, Cover Crops

Brazil’s Fundecitrus reported on the benefits to citrus from the use of perennial cover crops such as Urochloa ruziziensis combined with the adoption of ecological mowing. This technology has been gaining space in groves by redistributing the phytomass of cover crops from the interrows to the planting rows, forming a protective mulching layer over the soil. Benefits of the management …

ascorbic acid

Study Sheds Light on the Use of Ascorbic Acid With OTC

Daniel CooperHLB Management, Research

Growers have always been innovators, testing new production practices in their groves. When you add a disease like HLB, those experiments get ramped up in the effort to seek solutions. A good example of this was a discussion that began last year among growers that ascorbic acid (vitamin C) might be helpful in extending the effectiveness of the oxytetracycline (OTC) …

ReMedium TI

Growers Can Stay Productive in the Face of HLB

Daniel CooperHLB Management

Despite declaring there will be no silver bullet for HLB, Ozgur Batuman in a Jan. 21 virtual seminar said growers using integrated pest management (IPM) tools “can stay productive.” However, the University of Florida Institute of Food and Agricultural Sciences associate professor also warned that producing citrus juice in Florida “will not be easy or cheap.” Oranges are by far …

ascorbic acid

Amending Oxytetracycline With Ascorbic Acid

Daniel CooperHLB Management, Tip of the Week

By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman Trunk injections of oxytetracycline (OTC) have been proven to give huanglongbing (HLB)-affected citrus in Florida a boost in productivity and quality. However, previous studies have shown that even just six hours of exposure to heat and humidity in the grove can lead to OTC injections that no longer adequately suppress CLas …

Vietnam

Pomelos From Vietnam Concern Citrus Australia

Daniel CooperInternational, Trade

Citrus Australia has called on Australia’s minister for agriculture and the Department of Agriculture, Fisheries and Forestry to pause the market access application for pomelo from Vietnam. It cited biosecurity risks that require further scientific assessment.  Citrus Australia Chief Executive Officer Nathan Hancock said Australia’s citrus industry strongly supports mutually beneficial trade and recognizes the importance of open, rules-based market …

barriers

Foreign Barriers to Florida Citrus

Daniel CooperDiseases, International, Trade

The Florida Fruit & Vegetable Association (FFVA) recently provided comments to the Office of the United States Trade Representative as part of the annual review of foreign barriers to U.S. exports and investment. The FFVA letter noted injury to Florida citrus caused by low-priced imports from Mexico and the European Union’s use of scientifically unjustified, non-tariff trade barriers. Letter excerpts …

June

All In For Citrus Podcast, October 2025

Daniel CooperAll In For Citrus Podcast, CUPS

The October All In For Citrus podcast features citrus under protective screen (CUPS). Over the past decade, the practice has grown in popularity due to its ability to exclude the Asian citrus psyllid and huanglongbing (HLB) disease. Roughly 1,500 acres of citrus are grown under screen in Florida with more acreage under development. Lauren Diepenbrock, associate professor of entomology at …

prolong

Prolong Tree Health by Combining Covers and Brassinosteroids

Daniel CooperHLB Management, IPCs

As every Florida citrus grower knows, it has been difficult to grow trees and fruit profitably since huanglongbing (HLB) disease was discovered in the state in 2005. Soon after the disease was discovered, officials determined it couldn’t be eradicated largely because the Asian citrus psyllids (ACP) that spread it showed up years earlier and were in virtually all citrus-producing regions. …

diagnostic

Plant Diagnostic Facilities for Georgia Citrus Growers

Daniel CooperDiseases, Georgia

The University of Georgia (UGA) has disease labs and clinics to help citrus producers determine what diseases are impacting their trees. Jonathan Oliver, UGA assistant professor and small fruits pathologist, highlights the diagnostic facilities that growers can take advantage of. “We have a lab in Tifton, the Plant Disease Clinic, that can accept samples from commercial citrus,” Oliver said. “We …

rate

Brazil to Implement National Greening Prevention and Control Program

Daniel CooperBrazil, HLB Management

Brazilian agriculture officials recently visited Fundecitrus to discuss the first steps in implementing the National Greening Prevention and Control Program, which will be implemented by the states. The officials were with the Ministry of Agriculture, Livestock and Food Supply (MAPA) and the Agricultural Defense Coordination Office of the State of São Paulo. The ordinance establishing the National Greening Prevention and …

Greasy Green

Greasy Green and Its Management

Daniel CooperCitrus Expo, Diseases

A citrus disorder called greasy green has plagued Florida grapefruit producers for several years, causing a significant reduction in profits. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Associate Professor and Extension Specialist Megan Dewdney discussed the disorder and its management at the Citrus & Specialty Crop Expo in August. Dewdney works at the UF/IFAS Citrus Research and …

snail

Snail Update: Impacts and Abamectin

Daniel CooperPests

Snail impacts on Southeast citrus production can be devastating. A big part of the problem is not the damage to citrus trees but the harm the pest inflicts on irrigation systems. Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences associate professor and entomologist, conveyed this message to cold-hardy producers during the Citrus Grower’s Summer Update meeting on …