Pest Update: Lebbeck Mealybug

Ernie NeffPests

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock provided an update on the lebbeck mealybug pest at a recent Highlands County citrus growers’ meeting. The mealybug, first found in Highlands groves in June, feeds on and damages citrus, leading to fruit drop and crop loss. Diepenbrock reports that surveys conducted by the Florida Department of …

acp

Does Reducing Psyllids Help When HLB Is Present Everywhere?

Tacy CalliesHLB Management, Psyllids

By Freddy Ibanez, Nabil Killiny, L. Gene Albrigo and Lukasz L. Stelinski With both Asian citrus psyllids (ACP) and huanglongbing (HLB) distributed throughout Florida groves, there is no longer a need to slow the spread of the disease. So, it is logical to ask whether reducing vector numbers is still something that is worth pursuing, given the investment needed in …

lebbeck mealybug

More Lebbeck Mealybug Finds in Florida Citrus

Ernie NeffPests

Lebbeck mealybugs, found for the first time in Florida citrus in June in Highlands County, have now been confirmed in Hardee, DeSoto and Hendry county groves. The Florida Department of Agriculture and Consumer Services Division of Plant Industry (DPI) verified the pest finds. Lauren Diepenbrock, University of Florida entomologist, has been working closely with growers as the lebbeck mealybug finds …

Putting IPM Back in Citrus

Tacy CalliesIPM

By Lukasz L. Stelinski, Jawwad A. Qureshi and L. Gene Albrigo Florida citrus production has a long and trailblazing history of implementing integrated pest management (IPM). In 1950, the director of the Florida Citrus Experiment Station, A.F. Camp, proposed an “Ecological Survey of Citrus Pests and Disorders” to provide a comprehensive survey of the ecology of citrus groves throughout Florida …

Pest Alert: Lebbeck Mealybug Found in Florida Citrus

Daniel CooperIndustry News Release, Pests

The Florida Department of Agriculture and Consumer Services (FDACS) Division of Plant Industry issued an updated pest alert for lebbeck mealybug. Laurie Hurner, Highlands County Extension director, says this pest and its damage have been found in Highlands County citrus. “It has been misidentified as cottony cushion scale,” says Hurner. “It has been found in young trees under net and …

long-horned beetle

Psyllid Management for HLB

Ernie NeffHLB Management

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock reports on Asian citrus psyllid (ACP) management studies being conducted around the world. Her report covers presentations made at the International Citrus Research Conference on HLB in March. She summarized the international scientists’ observations at the Florida Citrus Growers’ Institute in Avon Park last month. She shares …

Citrus Industry Magazine CEU 2019 Article #1

What is a pesticide, really? By Laurie A. Hurner 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.  There is a lot of confusion about the term “pesticide” when you talk to …

citrus greening

Study Zeroes in on Organic Ways to Beat Citrus Greening

Daniel CooperCitrus Greening, HLB Management, Industry News Release, Research

Results show promise for organic groves, but more research is needed. Since it was first discovered in the United States in 2005, the bacterial disease known as citrus greening, or Huanglongbing, has devastated millions of acres of citrus crops throughout this country and abroad, ravaging citrus groves in Asia, Africa and South America. Citrus greening has impacted conventional and organic …

Recent Pest Concerns in Florida Citrus

Tacy CalliesPests

By Lauren Diepenbrock While Asian citrus psyllids (ACP) are an ongoing concern in Florida citrus due to their role in spreading the bacterium associated with citrus greening, they are not the only pest of concern to growers. Citrus leafminer (CLM) and root weevils are two pests that have been raising concerns and adding to the challenge of managing productive citrus …

HLB Reduction Strategies

Tacy CalliesHLB Management

By Jawwad Qureshi, Lukasz Stelinski and Fernando Alferez Management of huanglongbing (HLB) has focused on reducing the vector Asian citrus psyllid (ACP) and improving tree health, thus requiring a multi-pronged approach. Several elements of an HLB management system are either available or under current investigation. Maintenance of clean nursery stock, vector management and tree nutrition are widely implemented, while incorporation …

long-horned beetle

New UF/IFAS Entomologist: From a Kid’s ‘Lab’ to Helping Citrus Growers

Daniel CooperCitrus Greening, HLB Management, Industry News Release, Psyllids, Research

As a girl in her garage in Palm Bay, Florida, Lauren Diepenbrock, already a budding scientist, peered through the lens of her microscope and marveled at the magnification. “As a kid, I played in the woods and brought back all sorts of ‘finds,’ including a snake skeleton, none of which my mom allowed in the house,” said Diepenbrock, an assistant …

fungus

Scientists Use Fungus to Manage Asian Citrus Psyllids

Daniel CooperCitrus, Industry News Release, Psyllids, Research

  Fighting plant disease with jet blast sprays is standard practice for citrus growers. But, to spray a fungus to control a single insect that carries a disease-causing pathogen is uncommon. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and Florida Research Center for Agricultural Sustainability researchers have begun to test an insect-killing fungus applied with horticultural oil …

Managing Mites in Florida Citrus

Tacy CalliesPests

By Lukasz L. Stelinski, Jawwad A. Qureshi and Philip A. Stansly Florida citrus is host to four main groups of mites categorized by differences in lineage and morphology. However, only rust mites, spider mites and broad mites historically cause economic damage to commercially grown citrus in the state. The fourth group, referred to as false spider mites, are vectors elsewhere …

Tools for Integrated Management of Citrus Psyllids and Leafminers

Tacy CalliesPests, Psyllids, Research

By Jawwad A. Qureshi, Philip A. Stansly and Lukasz L. Stelinski Pest management has always been important for citrus production in Florida. It has become even more critical following invasion of the Asian citrus psyllid (ACP) and citrus leafminer (CLM), due to their association with huanglongbing (HLB or citrus greening) and canker diseases, respectively. ACP and CLM develop and reproduce …

citrus greening

UF/IFAS Researchers Awarded $10.5M to Work on HLB Resistance/Tolerance

Daniel CooperCitrus, Citrus Greening, Industry News Release, Research

With citrus greening devastating Florida’s $8.6 billion-a-year citrus industry, three University of Florida scientists will use $10.52 million in federal grants to study ways to help growers cope with the disease, including research on genetic editing that may produce potentially resistant fruit and trees. Since greening — or huanglongbing (HLB) — was first reported in Florida in 2005, Florida’s citrus …

indian

70th Anniversary for Indian River Research and Education Center

Daniel CooperIndustry News Release

A big event will take place Nov. 16 as the 70th anniversary of the Indian River Research and Education Center in Fort Pierce takes place. Jack Payne, University of Florida senior vice president for agriculture and natural resources, invites folks to attend. From Indian River Research and Education Center: Seventy years of service to growers in the world’s renowned grapefruit production region …

What Lies Ahead for Florida Citrus?

Tacy CalliesDiseases, HLB Management, Pests, Varieties

Editor’s note: This article is part of the special coverage on the 100th Anniversary of the UF/IFAS Citrus Research and Education Center, found in the October 2017 issue of Citrus Industry magazine. By Tom Nordlie Although it’s difficult to predict future events, directors of the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center (CREC) …

Citrus Production in Argentina

Tacy Callieslemons

By Stephen H. Futch and Ariel Singerman In May of 2017, we visited the northwestern citrus production region of Argentina in the provinces of Jujuy, Salta and Tucumán. The purpose of the trip was to learn more about Argentina’s citrus industry and programs being developed to deal with both the Asian citrus psyllid (ACP) and huanglongbing (HLB). Argentina has a …

psyllids

Keep Spraying Psyllids in HLB-Infected Groves

Ernie NeffHLB Management, Psyllids

  In a Citrus Expo talk, University of Florida Institute of Food and Agricultural Sciences entomologist Phil Stansly focused on the importance of continuing to spray psyllids in groves already infected with HLB. The main reason to do that, he says, is to keep psyllids from re-inoculating trees with HLB by “pumping more and more bacteria into that tree.” He …

Tree Defender Stops Psyllids

Tacy CalliesCitrus

Sponsored Content A Florida company may hold the key to protecting the world’s young citrus plantings until a permanent solution for the devastating citrus greening disease (HLB) can be found. Widespread devastation from citrus greening has caused billions of dollars in lost revenue and killed over 100 million citrus trees worldwide. Although there appears to be no end in sight, …