Diaprepes root wevil

Diaprepes Root Weevil Update for Florida

Josh McGill Pests

Florida’s populations of Diaprepes abbreviatus root weevil have been uncharacteristically low so far in 2023, entomologist Lauren Diepenbrock reported recently. The adult pests are normally active in April–May and in the fall, the University of Florida Institute of Food and Agricultural Sciences assistant professor noted. Prior to the discovery of HLB disease in Florida in 2005, growers who had extensive …

Diaprepes in Florida Citrus: Past, Present and Future

Josh McGill Pest Management, Research

By Lukasz L. Stelinski, Lauren Diepenbrock and Larry Duncan Given the focus on HLB in citrus management for more than a decade, important additional pests of citrus have sometimes not received the attention they may deserve. Trees with HLB are weakened and prone to succumb to the effects of the disease when challenged by secondary affliction(s), including infestation by diaprepes …

Dealing With Diaprepes Root Weevils

Josh McGill Pests

By Ajia Paolillo Managing diaprepes root weevils in the grove is essential for root health and overall tree health. The most concerning root weevil for citrus growers is Diaprepes abbreviatus. Diaprepes larval feeding causes significant injury and damage to citrus root systems. LIFE CYCLE AND FEEDING Let’s begin with the life cycle stages of the diaprepes root weevils. Adults emerge …

Landscape Fabric Blocks Diaprepes Larvae

Ernie Neff Pests

Fabric mulch landscape covers, typically used to block weeds in nurseries, can aid in diaprepes root weevil control, Larry Duncan reported at the recent Citrus Expo. “Some of these products, not all of them, are extremely effective at blocking the diaprepes weevil larvae from getting into the soil” after falling from a citrus tree, Duncan said. Duncan is a University …

IPCs Help With Diaprepes and Nematodes

Ernie Neff Pests

Florida citrus growers have known for several years that individual protective covers (IPCs) do a good job of excluding HLB-spreading Asian citrus psyllids from young trees. “But those protective covers also protect from things like Diaprepes abbreviatus,” researcher Larry Duncan told the recent Citrus Expo audience. Duncan is a nematologist at the University of Florida Institute of Food and Agricultural …

Growers Learn About Diaprepes Root Weevil Control

Tacy Callies Pests

University of Florida professor Larry Duncan presented the latest research on using entomopathogenic nematodes (EPNs) to control Diaprepes root weevil (DRW) in citrus to approximately 30 growers on June 30 at the Hardee County Extension Service office in Wauchula. The combination of HLB with DRW intrusion has created a situation that will accelerate the destruction of most infected trees. DRW …

citrus

Hacks and Suggestions for Georgia Citrus Growers

Daniel Cooper Georgia, Production

Citrus meetings are vital to a grower’s plan for the upcoming season. What they learn and take back to the grove can provide major benefits heading into the upcoming harvest season. The recent Georgia Citrus Association annual meeting provided a venue for growers to share management tips with their peers. Lindy Savelle, president of the Georgia Citrus Association, compiled a …

crdf

Three Key Meetings for CRDF

Daniel Cooper CRDF

The February board meeting of the Citrus Research and Development Foundation (CRDF) covered a lot of ground according to Rick Dantzler, the foundation’s chief operating officer. “We had a big day on the day of the board meeting. There were three meetings: 1) our monthly board meeting; 2) a research summit with citrus organization leaders, the CRDF board and CRDF …

CRDF Off to a Busy Start in 2024

Tacy Callies CRDF, HLB Management, Pest Management

The Citrus Research and Development Foundation (CRDF) kicked off the new year with a full agenda for its monthly board meeting. New members were welcomed to the board. Growers Matt Machata, Sarah Spinosa and Trevor Murphy joined the group. On the research front, the board funded continued work by Ping Duan, a plant pathologist with the U.S. Department of Agriculture. …

Planning Pointers for Insect Management

Tacy Callies Pests, Tip of the Week

By Lauren Diepenbrock Insect and mite management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of some highly …

CRDF Puts a Bow on a Busy Year

Tacy Callies CRDF

The Citrus Research and Development Foundation (CRDF) held its final board of directors meeting of the year on Dec. 12. According to Rick Dantzler, CRDF chief operating officer, it was a productive meeting. “We funded projects on plant breeding and evaluation,” Dantzler said. “We also approved research to look for ways to maximize the use of oxytetracycline (OTC) as a …

insecticide

Timing Insecticide Applications for Best Effects

Daniel Cooper Pests, Tip of the Week

By Lukasz Stelinski Here are some basic guidelines that growers can follow to manage pests successfully and economically in their groves: Take-home messages include the following: Lukasz Stelinski is a professor at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center in Lake Alfred. Sponsored ContentBRAZILIAN RESEARCH RESULTS IN A UNIQUE PRODUCT FOR HLB MANAGEMENTApril …

lebbeck mealybug

New Knowledge on Lebbeck Mealybug Can Aid Control

Daniel Cooper Pests

Lebbeck mealybug populations are not tied to flush production, entomologist Lauren Diepenbrock reported recently. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor also noted: Diepenbrock sampled lebbeck mealybug populations in commercial citrus groves in Central Florida. Analysis of the seasonal trapping data provided easily observable trends. Based on these trends, she offers the following initial …

Developing Management for a New Snail Pest

Josh McGill Pests

By Lauren Diepenbrock A recently established snail species, Bulimulus bonariensis (also known as Bulimulus sporadicus), has been growing in population throughout the Southeast for the past few years. Growers first reported concerns about this snail in 2020 when they found the pest covering microjets and interfering with irrigation in the late spring/early summer (Figure 1). At the time, it was …

Reduce Pests With Natural Enemies

Josh McGill Pests, Research

By Jawwad Qureshi A wide range of pests colonize citrus crops. Most of these species target tree canopies, and a few feed on the roots. Damage is either direct through feeding on the plant tissues or it can be twofold if the pest is also responsible for transmitting the pathogens of a disease or making conditions favorable for the disease …

Pest Management Workshop for Florida

Josh McGill Events, Pest Management

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will hold a workshop on citrus insect, mite and nematode management Jan. 19 at the Citrus Research and Education Center in Lake Alfred. The workshop will run from 9 a.m. to 3 p.m. Presentations will be made by UF/IFAS faculty members. UF/IFAS pointed out that pest management in citrus …

Sneak Peek: January 2023 Citrus Industry

Josh McGill Sneak Peek

Past management, a perennial problem for citrus growers, is the primary focus of the January issue of Citrus Industry magazine. An old pest is posing new concerns for Florida growers. The recent resurgence of diaprepes root weevil is the subject of the cover story by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers Lukasz Stelinski, Lauren Diepenbrock …

Growers and Researcher Discuss Millennium Block Trials

Josh McGill Research, Rootstocks, Varieties

Two citrus growers recently explained the benefits to be gained from research at the Indian River Research and Education Center’s (IRREC) Millennium Block in Fort Pierce, and a scientist discussed a grapefruit study there. The IRREC is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) facility. The 20-acre block was planted in 2019 to help growers find …

Groundcovers Promote Water-Use Efficiency and Pest Management

Josh McGill Irrigation, Pests

By Sandra M. Guzmán, Larry Duncan, John Santiago and Lorenzo Rossi The implementation of pest management technologies might have an impact on other management areas in the grove. Landscape fabric groundcovers, for example, have been used for pest management in citrus production. Groundcovers also recently have been used to promote the homogeneous availability of water for uptake by roots, better …

snail

CRDF Funds CRAFT and Pest Projects

Josh McGill CRAFT, CRDF, Research

The Citrus Research and Development Foundation (CRDF) was able to hold its September board of directors meeting just prior to Hurricane Ian. During the meeting, CRDF awarded funding for Cycle Four of the Citrus Research and Field Trial (CRAFT) program. This will allow for another round of investments in grower-led research projects. “Kristen Carlson, Tamara Wood, the Technical Working Group …