Meetings have become an integral part of the production process for Georgia citrus growers. The University of Georgia’s (UGA) most recent meeting allowed producers to hear from scientists about research pertaining to a growing industry in the region. Topics like changing weather patterns, rootstock research, HLB and the use of ethylene to degreen satsuma mandarins were presented during an Aug. …
Psyllids Reach Historically High Levels in Brazil
Populations of Asian citrus psyllids in the Brazilian states of São Paulo and Minas Gerais have hit historically high levels, Fundecitrus recently reported. Fundecitrus described the development as “alarming” because the psyllids spread citrus greening disease. Reversing the situation requires immediate and joint action among citrus growers in the same micro-region, Fundecitrus stated. It reported that in the first half …
Hairy Approach May Get to the Root of HLB
Developing disease-resistant, high-quality improved crop varieties may seem like a “hairy” task, but Texas A&M AgriLife Research scientists may have gotten to the root of the issue. A new biological technology that develops and multiplies disease-resistant citrus plants is under development by an AgriLife Research team led by Kranthi Mandadi. Mandadi is an associate professor at the Texas A&M AgriLife Research …
Drinking Orange Juice Lowers Dementia Risk
A recent study finds that moderate consumption of up to one cup per day of natural juices, such as 100% orange juice (OJ), lowers the risk of dementia. Inversely, consuming up to two cups per day of artificially sweetened beverages, and more than two cups per day of sugar-sweetened beverages, increases the risk of dementia. The study was published by …
Citrus Production Guide Available at Expo
The 2023–2024 Citrus Production Guide will be available to growers at the Citrus & Specialty Crop Expo in Tampa on Aug. 16–17. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) publication includes the latest technical advice on HLB management, tree nutrition, grove management and other aspects of Florida citrus cultivation. The guide is a comprehensive reference meant …
CRDF Board Focused on HLB Treatments
The Citrus Research and Development Foundation (CRDF) board of directors meeting in July focused largely on the use of oxytetracycline (OTC) as an HLB treatment in citrus. The board considered projects testing it in combination with other antimicrobial compounds or as a standalone treatment. Trunk injection of OTC has given the Florida citrus industry hope that it might be a …
First Tau Fruit Fly Quarantine in Western Hemisphere
A portion of Los Angeles County has been placed under quarantine for the Tau fruit fly (Zeugodacus tau group) following the detection of more than 20 flies in the unincorporated area of Stevenson Ranch, near the city of Santa Clarita. The fly has a very wide host range, including numerous citrus varieties as well as a select range of native …
Biologically-Based Management of Citrus Pests
By Jawwad Qureshi Management of the Asian citrus psyllid (ACP, Figure 1) is critical because it is responsible for spreading huanglongbing (HLB) disease. Although HLB is established in Florida, it continues to spread through ACP feeding in already infected trees and by infecting newly planted young trees. Some ACP control occurs naturally in the environment by beneficial organisms such as …
A Guide to Safe, Effective Pesticide Use
By Danielle S. Williams 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. Pesticides are vital tools in agriculture that help protect crops from pests and diseases. Pesticide use must be managed …
UF/IFAS Educational Programs at Expo
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers and Extension staff will provide multiple educational programs at the Citrus & Specialty Crop Expo Aug. 16–17. The event will be held at a new location this year — the Florida State Fairgrounds in Tampa. Attendance is free to growers, but registration is required. UF faculty and staff …
Fruit Quality Evaluations for Georgia Citrus Varieties
Characteristics of 30 varieties and 45 variety/rootstock combinations were reported in Evaluating Fruit Quality of Citrus Varieties in Georgia, 2021-22. Jacob Price, county Extension coordinator for Lowndes County and Extension citrus specialist with University of Georgia (UGA) Extension, authored the report. Price noted that most groves in Georgia were planted after 2014. Initially, satsuma mandarins (Citrus unshiu) on trifoliate rootstocks …
Land Grant Research Prioritization Act Introduced
U.S. senators from Florida and Georgia have introduced legislation authorizing the U.S. Department of Agriculture (USDA) to make priority research grants available for land-grant universities. The grants would fund research and development of agricultural applications of artificial intelligence (AI), advanced mechanized harvester technologies, invasive species control and aquaculture. The senators who introduced the Land Grant Research Prioritization Act are Marco …
Sneak Peek: August 2023 Citrus Industry
The August issue of Citrus Industry magazine includes the show guide to an event many Florida growers look forward to all year long. The annual Citrus & Specialty Crop Expo has a new home at the Florida State Fairgrounds in Tampa. Find what you need inside the August issue to make the most of the event, including a full seminar …
Silicon Recommendations for Citrus
A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher recently wrote an article about silicon that included recommendations for its use. The article by Muhmmad Shahid, assistant professor of horticulture, appeared in the UF/IFAS Cold Hardy Citrus Connection newsletter. Silicon’s benefits may include improved yield, a strengthened root system and tolerance to abiotic stress, including cold. Excerpts …
Grower-Friendly HLB Research Summaries
The U.S. Department of Agriculture National Institute of Food and Agriculture (USDA NIFA) provides research directed at overcoming the devastating HLB disease and protecting the nation’s citrus industry. Since 2014, NIFA has funded approximately $200 million for HLB research projects. Many HLB-related NIFA project one-page summaries are now easily accessible and written in a grower-friendly language and format on the …
Nutrition and Irrigation Role Reinforced for HLB Trees
In a virtual seminar for growers on July 19, Davie Kadyampakeni reinforced that optimal, balanced nutrition and frequent irrigation can improve HLB-affected citrus trees, yield and fruit. Kadyampakeni is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor at the Citrus Research and Education Center in Lake Alfred. NUTRITION“Citrus fruit yields, juice quality and canopy size …
Georgia Citrus Development Act Introduced
U.S. Sen. Jon Ossoff is leading the charge to support Georgia’s farmers and strengthen the state’s growing citrus industry. He introduced the Georgia Citrus Development Act of 2023to ensure Georgia citrus growers are represented when guiding key decisions for the industry. Sen. Ossoff’s bill would add a new Georgia member to the Citrus Disease Subcommittee (CDS), a national policy council …
Capitalize on Cooperative Research
By Larry Duncan The growers advising the Citrus Research and Development Foundation understand very well the importance of cooperative research projects between growers and scientists. Several years ago, they earmarked a portion of research funding, not for carefully managed laboratory experiments or small plot trials at state, federal or private research centers, but rather for grower-run trials testing potential HLB …
Fundecitrus Participates in Argentine Citriculture Congress
Specialists from Brazil’s Fundecitrus recently participated in the Argentine Citriculture Congress in Concordia, Argentina. They were among more than 400 at the event. Participants included producers, researchers and students. Fundecitrus researcher Renato Bassanezi gave the opening lecture on epidemiology and management of greening in Brazil. He also participated in a round table discussion on the current status of advances in …
Grapefruit Rootstock/Scion Research Update
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers Mark Ritenour and Flavia Zambon recently provided an update on a large field trial. The project is called Evaluation of Potential HLB Tolerant Grapefruit Rootstock/Scion Combinations in the Indian River District of Florida. A summary of their update follows: The project started as a collaborative effort between the UF/IFAS …