The Pest Partnerships that Threaten Citrus

Josh McGill California Corner, Citrus, Pests

Biocontrol of Asian citrus psyllids can be improved by controlling ants. By Kelsey Schall and Mark Hoddle More than a decade of battle with the Asian citrus psyllid (ACP)-huanglongbing (HLB) complex has drained the vigor from Florida’s citrus industry, costing billions in disease management and production losses. With HLB established in parts of urban Southern California, the second largest citrus …

Controlling ACP and Other Pests as Critical as Ever

Tacy Callies Citrus Greening

By Jawwad A. Qureshi and Philip A. Stansly More than a decade has passed since 2006, when huanglongbing (HLB) or citrus greening disease was identified in Florida. By then, the disease had already spread widely and went unrecognized due to high psyllid populations and a disease incubation period of months or years between infection and symptom expression. Nevertheless, management of …

Entomopathogenic Nematodes: Root Weevil Management Tool

Tacy Callies Pests

By Larry Duncan Citrus growers are recognized as early adopters of practices that enhance the biological control of arthropod pests. For more than a century, tactics such as the exploration and importation of predators and parasitoids or the reduced use of insecticides that disrupt biological control were increasingly employed against pests in the tree canopy. Beginning in the early 1990s, …

Safeguarding Citrus Stock

Tacy Callies Citrus Greening, Regulation

By Georgios Vidalakis On March 30, 2007, I received a memorable phone call in my office at the University of California (UC), Riverside. “Georgios,” said the caller, “The 2008 Farm Bill will establish the National Clean Plant Network (NCPN) for specialty crops. This program will be like no other because it will be driven from the ground up. The system …

Will You Be Ready for Postbloom Fruit Drop?

Tacy Callies Diseases, PFD

By Megan M. Dewdney Again in 2016, postbloom fruit drop (PFD) caused widespread problems in Florida groves. There were multiple factors that contributed to the outbreak in 2016. The primary factor was likely the extended bloom that many saw because of a combination of tree stress caused by huanglongbing (HLB) and the very warm winter. Bloom in some groves was …

HLB

Pathologist to Tackle HLB and Other Diseases

Ernie Neff Citrus Greening, HLB Management, PFD

Ozgur Batuman, a new citrus plant pathologist at the Southwest Florida Research and Education Center, discusses the diseases he’ll work on. “I am planning to of course tackle some of the more pressing issues that citrus growers are facing these days, one of them being huanglongbing (HLB), and confronting its vector, Asian citrus psyllid,” he says. He will also research …

Kakkar Joins UF/IFAS Extension as Invasive Insect Specialist

Daniel Cooper Pests, Research

by Robin Koestoyo, UF/IFAS koestoyo@ufl.edu Garima Kakkar is joining the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to help the state fight invasive pests. Kakkar, an expert in invasive insects, is a multi-county Extension agent based in St. Lucie County. Kakkar has a diverse range of experience in managing pest insects, and will now serve growers in the …

Letter to the Editor: The Future of the Florida Citrus Industry*

Tacy Callies Citrus, Letter to the Editor, Rootstocks, Scions

By Bill Castle University of Florida professor emeritus Paul Genho, a former manager of the Deseret Ranch in Osceola County, spoke about soils and food at a Florida land conference in 2015.** He noted that 90 percent of the world’s food production occurred on only four soil types: Mollisols, Alfisols, Ultisols and Oxisols. A goodly proportion of those soil types …

citrus greening

USDA Invests in Citrus Greening Research

Daniel Cooper Citrus Greening, Industry News Release

The U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA) today announced four grants totaling more than $13.6 million to combat a scourge on the nation’s citrus industry, citrus greening disease, aka huanglongbing. The funding is made possible through NIFA’s Specialty Crop Research Initiative Citrus Disease Research and Extension Program, authorized by the 2014 Farm Bill. Sponsored …

growers

Citrus Greening, Invasive Species Head 2016 UF/IFAS Stories

Daniel Cooper Citrus, HLB Management, Industry News Release

A trio of projects aimed at helping Florida producers cope with the bacterial disease known as citrus greening topped the list of stories shared by the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) in 2016. This year marked the beginning of the state’s second decade battling greening disease, which is also known as huanglongbing or HLB. Other top …

Citrus Grower Goes Undercover

Tacy Callies HLB Management

Ed Pines’ solution to citrus greening is to grow fruit in a citrus undercover production system. By Catalina Pines “It’s said that necessity is the mother of all invention, and today I toured one way the citrus industry is fighting back against greening,” said Florida Commissioner of Agriculture Adam Putnam on Twitter after touring Precision Citrus on September 23. In …

Research Update: Citrus Undercover Production Systems and Whole Tree Thermotherapy

Tacy Callies Citrus

By Arnold Schumann, Laura Waldo and Alan Wright Research for producing huanglongbing (HLB)-free fresh Florida citrus with covered production systems began at the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center in 2013 and at the Citrus Research and Education Center (CREC) in 2014. These citrus undercover production systems (CUPS) evolved from the …

HLB Management in Brazil

Tacy Callies Citrus

Observations and lessons learned from a recent citrus grower tour By Stephen H. Futch In June 2016, a group of Florida citrus growers and industry representatives embarked on a trip to tour the Brazilian citrus industry. The primary purpose of the trip was to learn more about how huanglongbing (HLB or citrus greening) is being managed in Brazil and how …

growers

15 UF/IFAS Early Career Scientists Awarded $50K Grants

Daniel Cooper Industry News Release

Fifteen early career scientists at the University of Florida Institute of Food and Agricultural Scientists (UF/IFAS) have been awarded grants to help solve global issues such as thwarting invasive pests, improving crop varieties, battling citrus greening and preserving our environment. Sponsored Content5 Facts About Fire Ants and How to Control ThemApril 30, 2024BRAZILIAN RESEARCH RESULTS IN A UNIQUE PRODUCT FOR …

From Planning to Planting: Establishing New Groves in the Presence of HLB

Tacy Callies Citrus

By Ute Albrecht Despite the constant threat of huanglongbing (HLB), most growers remain optimistic and are replanting citrus trees to maintain production levels necessary for sustaining the industry. The tax incentive bill under the Emergency Citrus Disease Response Act introduced in December 2015, if implemented, will help growers get back expenses associated with replanting of diseased trees immediately, instead of …

Managing the Health and Productivity of HLB-Affected Groves

Tacy Callies HLB Management

By Tripti Vashisth In 2005, huanglongbing (HLB or citrus greening disease) was first discovered in Florida. Florida orange production changed from 242 million boxes in the pre-hurricane, pre-HLB, 2003–2004 season to 81.5 million boxes in 2015–2016. This dramatic reduction in yield is attributable to multiple causes, including a reduction in citrus acreage, citrus canker and other citrus diseases. HLB is …

florida citrus

ACP Movement Shows History Repeating Itself

Kelsey Fry Citrus, Legislative

Research is looking at what we can learn from the Asian citrus psyllid’s (ACP) history, specifically ACP movement throughout Southern California. Psyllid finds in Central California are mimicking the insect’s history of spread. University of California, Department of Agriculture and Natural Resources held it’s California Asian Citrus Psyllid and Huanglongbing Research and Extension Summit at UC Riverside. The summit was …

Pruning to Rehabilitate HLB-Affected Sweet Orange Trees

Josh McGill Citrus

By Tripti Vashisth and Troy Gainey In the last 11 years, Florida orange production has declined more than 60 percent. This dramatic reduction in yield is attributable to multiple causes, including loss of citrus acreage in the state, citrus canker and other diseases, but huanglongbing (HLB) is now recognized as the primary reason for declining citrus yields. HLB-affected trees are …

Injecting Citrus Tree Trunks with Bactericide May Help Stem Greening

Josh McGill Citrus

By: Brad Buck GAINESVILLE, Fla. — A chemical treatment known as a bactericide could help preserve citrus trees from the potentially deadly and costly greening disease, a new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study shows. Citrus is estimated as a $10.9 billion-a-year industry in Florida and the finding could be key to helping the state’s …