A New Pest Concern for Florida Citrus

Tacy CalliesPests

University of Florida Extension entomologist Lauren Diepenbrock has discovered a pest not previously found in Florida citrus. “Recently, we have been finding some new pest signs in citrus … What we believe we found are signs of ambrosia beetles,” says Diepenbrock. She has fungus-infected citrus tree trunk samples in her lab and is waiting for adults to emerge in order … Read More

Peach Fruit Fly Pest Alert for Florida

Daniel Cooperfruit, Industry News Release, Pests

peach fruit fly

A male peach fruit fly, Bactrocera zonata (Saunders) (Tephritidae), was captured in a fruit fly detection trap on May 9 in Lake Worth, Florida, in Palm Beach County. A second male was captured about 1.25 miles away, also in Lake Worth on May 10. This is only the second time that this pest species has been found in Florida. A … Read More

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 … Read More

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 … Read More

Robots May Soon Detect Grove Pests and Diseases

Ernie NeffDiseases, Pests, Technology

pests

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 … Read More

Root Weevil Management: Above and Below Ground

Tacy CalliesPests

By Jawwad A. Qureshi and Larry Duncan Root weevils are a major pest group for many kinds of plants, with at least nine species that colonize citrus. Species commonly infesting citrus include Diaprepes root weevil (Diaprepes abbreviates), blue-green citrus root weevils (Pachnaeus litus and Pachnaeus opalus), little leaf notcher (Artipus floridanus), Fuller rose beetle (Asynonychus godmani) and Sri Lanka weevil … Read More

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) … Read More

FDACS Promotes the Abandoned Grove Initiative

Abbey TaylorPests

Research shows that abandoned citrus groves can harbor unwanted pests and citrus diseases. Therefore, the Florida Department of Agriculture and Consumer Services (FDACS) Bureau of Pest Eradication and Control is raising more awareness about its Abandoned Grove Initiative to help destroy those safe havens for deadly pests. Callie Walker, chief of the FDACS Bureau of Pest Eradication and Control, says … Read More

Korea Requirements for Fuller Rose Beetle

Len WilcoxPests

As in previous years, orange shipments to Korea must be free of Fuller rose beetle (FRB) and California red scale (CRS). Growers desiring to qualify oranges for export to South Korea must comply with the FRB protocol during the 2017-2018 shipping season. Growers are required to implement the following measures for FRB control on oranges: 1. Skirt-prune trees to prevent … Read More

The Pest Partnerships that Threaten Citrus

Josh McGillCalifornia 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 … Read More

Entomopathogenic Nematodes: Root Weevil Management Tool

Tacy CalliesPests

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, … Read More

Phil Stansly: Psyllid Slayer

Tacy CalliesCitrus, Citrus Health Management Areas, HLB Management, Pests

By Ernie Neff Gulf citrus growers had a CHMA (citrus health management area) before CHMAs were popular — even before they were called CHMAs! Phil Stansly, University of Florida (UF) entomology professor, is among those credited with organizing Florida’s first psyllid- and HLB-fighting CHMA. Others recognized for the achievement include Gulf Citrus Growers Association (GCGA), Florida Cooperative Extension Service and … Read More

Kakkar Joins UF/IFAS Extension as Invasive Insect Specialist

Daniel CooperPests, 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 … Read More

Stronger Standards for Applying the Riskiest Pesticides

Daniel CooperIndustry News Release, Pests

pesticides

Improved training and minimum age requirements will help protect people and the environment. The U.S. Environmental Protection Agency (EPA) is finalizing standards for applicators who apply restricted-use pesticides that are not available for purchase by the general public, and require special handling. “We are committed to keeping our communities safe, protecting our environment and protecting workers and their families,” said … Read More

Update on $9 Million NuPsyllid Effort Against HLB

Ernie NeffCitrus Greening, HLB Management, Pests

Citrus Research and Development Foundation (CRDF) Chief Operations Officer Harold Browning provides an update on a major five-year HLB project that CRDF is managing. “It’s (NuPsyllid) a project that started in 2012, involving a team of scientists from all over the country … And the goal is to build and release into the field the psyllid that has less capacity … Read More

HLB-Spreading Psyllids: Dormant Sprays and the Edge Effect

Ernie NeffCitrus Greening, HLB Management, Pests

HLB, psyllids

University of Florida entomologist Phil Stansly discusses the use of dormant sprays for HLB-spreading psyllids. He also addresses the fact that psyllid populations are often higher on grove perimeters — the so-called “edge effect.” Stansly says the next coordinated grower spray for psyllids in the Gulf citrus-growing region will be a dormant spray. “The trees are dormant now and that’s … Read More

Grower: Don’t Cut Back on Psyllid Control

Ernie NeffCitrus Greening, HLB Management, Pests

psyllids

Gardinier Florida Citrus General Manager Lee Jones, one of several attending a Gulf Citrus Health Management Area Workshop on November 15 in Immokalee, wanted to share a message with fellow growers. The message: Don’t reduce efforts to control HLB-spreading Asian citrus psyllids. “Everybody’s groves this year are looking a little better,” Jones told Citrus Industry magazine immediately after the seminar. … Read More

Citrus Black Spot Location and Management

Ernie NeffCitrus Expo, Pests

citrus black spot

The citrus black spot (CBS) that emerged in Florida in 2010 apparently remains confined to Collier and Hendry counties, except for a single find in Polk County in 2013. “There’s a quarantine within those two counties (Collier and Hendry),” University of Florida researcher Jeff Rollins said in a Citrus Expo presentation. “The quarantine extends a little bit into Lee County, … Read More

HLB-Spreading Psyllids: Incidence and Intensity

Ernie NeffCitrus Expo, Citrus Greening, Pests

HLB-spreading psyllids

Citrus growers sometimes ask University of Florida entomologist Phil Stansly why they should continue to spray for HLB-spreading psyllids when trees are already infected with the disease. Stansly answered that question at Citrus Expo in August. “There are two issues with HLB,” Stansly says in this interview with Tacy Callies summarizing his Expo presentation. “One is incidence. In other words, … Read More