Controlled-Release Fertilizer Boosts Health of HLB Trees (Part 2)

Tacy CalliesCitrus, Nutrition

By Pete Spyke, Joby Sherrod and Jude Grosser Part 1 of this article, published in the April 2017 issue of Citrus Industry magazine, provided some background information on controlled-release fertilizer (CRF) along with a discussion of practical applications in citrus production. This article, part 2, includes summaries of observations from several case studies in which CRF has been applied for …


New Case of HLB Found in Southern California

Len WilcoxCalifornia Corner, Psyllids

Huanglongbing (HLB) was confirmed in a single citrus tree in the city of La Habra in Orange County, California, on April 11, 2017. This new find will result in a new HLB quarantine area, which will link the existing quarantines into a contiguous zone spanning portions of Los Angeles and Orange counties. Additionally, two samples of Asian citrus psyllids (ACP) …


Bactericide Grower Trials for HLB ‘Extremely Variable’

Ernie NeffBactericides, HLB Management

Stephanie Slinski, Citrus Research and Development Foundation bactericide project manager, discussed grower trials on the use of bactericides for HLB at the Florida Citrus Growers’ Institute in Avon Park on April 4. She summarizes the presentation. “We have a series of field trials set up throughout Florida to test the efficacy of oxytetracycline and streptomycin just in the grower program,” …

Controlling ACP and Other Pests as Critical as Ever

Tacy CalliesCitrus 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 …

HLB, breeding

An Update on Breeding Against HLB

Ernie NeffCitrus Greening, Genetic Engineering, HLB Management

University of Florida researcher Jude Grosser recently discussed a broad range of research aimed at mitigating the effects of HLB during an OJ Break in Sebring. Among topics he covered are the possibility of windbreaks that kill HLB-spreading Asian citrus psyllids, and progress on trees that are HLB resistant or tolerant. Regarding psyllid-killing windbreaks, he says, “We do have a …


Pathologist to Tackle HLB and Other Diseases

Ernie NeffCitrus 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 …

Continuing a Legacy of Leadership

Tacy CalliesCitrus, Citrus Greening, Citrus Health Management Areas, Regulation

By Tacy Callies Callie Walker comes from a long line of Florida farmers. In 1875, her family set up homestead in Alva. Her father, uncles, grandfather and great-grandfather have been involved in a diversity of agricultural fields including citrus, cattle, sugar cane, vegetables and row crops. “My dad and his three brothers still run the family operation — citrus and …

Kakkar Joins UF/IFAS Extension as Invasive Insect Specialist

Daniel CooperPests, Research

by Robin Koestoyo, UF/IFAS 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 …

Disease, Harvest, Environment

Disease, Harvest Labor, Environment Big Issues in Gulf

Ernie NeffDiseases, Labor

Gulf Citrus Growers Association (GCGA) Vice President Ron Mahan, who chaired a recent GCGA member lunch, discusses key issues facing the association. Mahan says the area’s number-one concern is disease pressure “and adjusting our management and growing practices to minimize disease impacts.” He notes that Florida is “going to be at one of our low points in production this year,” …


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

Daniel CooperIndustry 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 CalliesCitrus

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 …

florida citrus

ACP Movement Shows History Repeating Itself

Kelsey FryCitrus, 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 …

Metalized Mulch

Josh McGillCitrus, Citrus Greening

Big boost in young tree growth and yield from insecticides and metalized mulch By Phil Stansly, Scott Croxton and Joby Sherrod With yields dropping in Florida and Brazil, the decision to replant is not an easy one. Still, prospects for eventual success of new plantings are better now than ever in the last 10 years. Think about it: 1) Asian …


Why There Is a Lack of HLB in Georgia

Josh McGillGeorgia, HLB Management

HLB has yet to become a major problem for Georgia’s citrus producers. Jonathan Oliver, University of Georgia assistant professor and small fruits pathologist, attributes the disease’s lack of presence in Georgia’s commercial groves to multiple factors. “It still comes down to the fact that, number one, you don’t see symptoms for a while. A lot of our trees are young,” …

Growing Matters: Safe Neonicotinoid Use Urged

Josh McGillBMPs, Growing Matters, News from our Sponsor

Growing Matters, funded by a consortium of agricultural chemical companies, recently launched its fourth annual BeSure! campaign to promote best management practices when using neonicotinoid products on farms and urban landscapes. The campaign uses a wide range of media channels to remind growers, crop protection applicators and others to ensure label directions and responsible stewardship measures are followed for neonicotinoid …


Robots May Soon Detect Grove Pests and Diseases

Ernie NeffDiseases, Pests, Technology

It may not be long before a grower sips coffee and works on the computer while a robot roams the grove checking for HLB-spreading psyllids and other pests and diseases. That’s thanks to machine vision software. University of Florida Institute of Food and Agricultural Sciences scientist Arnold Schumann tells about research he has been conducting. Schumann says researchers have developed …