Cut Psyllid Control Costs

Ernie NeffPsyllids

IPM

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lukasz Stelinski suggested ways growers can cut psyllid control costs. He summarized key points he made in a talk at a Jan. 8 Citrus Insect Management Workshop at the Citrus Research and Education Center in Lake Alfred. Stelinski credited the late UF/IFAS entomologist Phil Stansly for determining that psyllid … Read More

Growers to Learn About Pest Management at Workshop

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

growers

Citrus growers can learn more about managing Asian citrus psyllids and other pests in a workshop Jan. 8 at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC). The psyllid can transmit the bacteria associated with greening disease to citrus trees and has already caused severe damage to Florida’s multi-billion-dollar-a-year citrus industry. … Read More

Kaolin Clay May Be Viable Option to Protect Citrus Trees from ACP

Daniel CooperCitrus Greening, Industry News Release, Psyllids, Research

Florida citrus growers have begun taking notice of kaolin clay, a powdery white compound, because it can cause Asian citrus psyllids (ACP) to “not take notice” of their groves. Long used to protect other fruit and vegetable crops, kaolin can also conceal citrus trees from hungry psyllids by confusing their visual sensory system, said Michael Rogers, director of the Citrus … Read More

Attract-and-Kill Device Being Developed for Psyllids

Ernie NeffPsyllids

IPM

Numerous researchers have collaborated on an attract-and-kill device that will hopefully eliminate psyllids in confined spaces, such as nurseries and citrus under protective screen (CUPS). University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lukasz Stelinski reports on a presentation he made Oct. 25 at a citrus nursery workshop in Lake Alfred. Stelinski says researchers with UF/IFAS and … Read More

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

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

citrus

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 … Read More

Bactericides for Psyllids and HLB

Ernie NeffBactericides, HLB Management, Psyllids

bactericides

Many growers in recent years have used bactericides in an effort to reduce HLB infection in their groves. University of Florida Institute of Food and Agricultural Sciences researcher Kirsten Pelz-Stelinski reports on use of bactericides to reduce both the bacteria that causes HLB and the psyllids that spread it. In greenhouse studies, she reports, bactericides appeared to offer “some reduction” … Read More

Stansly’s Parting Shot at Psyllids

Ernie NeffPsyllids

psyllids

Less than a month before his death, the late Phil Stansly offered Citrus Expo attendees advice for coping with psyllid resistance to neonicotinoid insecticides. Stansly was a University of Florida Institute of Food and Agricultural Sciences entomologist based at the Southwest Florida Research and Education Center. He was among those credited with organizing Florida’s first psyllid- and HLB-fighting citrus health … Read More

Why Citrus Growers Should Keep Spraying for Psyllids

Ernie NeffHLB Management, Psyllids

For several years after HLB was detected in Florida in 2005, most citrus growers and researchers agreed that it was essential to spray aggressively for the Asian citrus psyllids that spread the disease. In recent years, however, many growers have questioned whether it still makes sense to spray for psyllids when 100 percent of groves are infected, as is the … Read More

Scientists Use Fungus to Manage Asian Citrus Psyllids

Daniel CooperCitrus, Industry News Release, Psyllids, Research

fungus

  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 … Read More

Overcoming Psyllids’ Resistance to Insecticides

Ernie NeffHLB Management, Psyllids

IPM

University of Florida Institute of Food and Agricultural Sciences researcher Lukasz Stelinski talks about the insecticide resistance that HLB-spreading psyllids develop and how to manage it. “There is insecticide resistance in Florida for Asian citrus psyllids,” Stelinski says. “It’s a phenomenon that occurs statewide, but in isolated areas.” “We actually have the tools and the knowledge to practice insecticide resistance … Read More

For Psyllids, Kaolin Clay Beats Foliar Insecticides

Ernie NeffHLB Management, Psyllids

psyllids

University of Florida Institute of Food and Agricultural Sciences researcher Christopher Vincent says kaolin clay outperforms foliar insecticides for management of HLB-spreading psyllids at times when kaolin’s use is practical. His presentation on the topic followed the Citrus Research and Development Foundation (CRDF) meeting on May 22 at the Citrus Research and Education Center in Lake Alfred. The presentation, part … Read More

Grower Discusses HLB Management Strategies

Ernie NeffHLB Management, Psyllids

HLB

Jim Snively, vice president of grove operations at Southern Gardens Citrus, discusses his company’s management of HLB and the psyllids that spread it. He summarizes a presentation he made at the International Citrus Business Conference in March. “By reducing stress, the trees can deal with disease much better,” Snively says. “We’re doing this through continuous-type feeding or frequent feeding with … Read More

Imidacloprid Alternatives for Psyllid Control

Ernie NeffHLB Management, Psyllids

HLB

Phil Stansly, University of Florida Institute of Food and Agricultural Sciences entomologist, discusses alternatives to imidacloprid for helping to control HLB-spreading Asian citrus psyllids (ACP). “Imidacloprid of course is typical of the neonicotinoids that we’ve been using as soil applications to protect young trees,” Stansly says. “We’ve seen and the growers have seen, too, that soil applications of systemic insecticides … Read More

‘Flip’ Psyllid Control for Better HLB Management

Ernie NeffHLB Management, Psyllids

HLB

Mike Irey of Southern Gardens Citrus explains why he thinks “flipping” the standard focus of psyllid control from young trees to mature trees can actually help young trees grow stronger in the face of HLB. Irey, director of research and business development, spoke at the recent International Citrus Business Conference in Daytona Beach. Irey explains that HLB is spread two … 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

Psyllid Protection by Photonic Fence Under Development

Ernie NeffHLB Management, Psyllids

psyllid

By next year, a fence utilizing light sources is expected to be available to help protect some citrus structures and maybe even grove perimeters from the HLB-spreading psyllid. U.S. Department of Agriculture research entomologist Joe Patt explains the technology. “Photonic fence is a multi-modal system that uses several different types of light in order to detect, track, identify and, if … Read More

Using Kaolin Against HLB-Spreading Psyllids

Daniel CooperHLB Management, Psyllids

psyllids

Researchers are trying to use all available tools to control HLB-spreading psyllids, says entomologist Michael Rogers with the University of Florida Institute of Food and Agricultural Sciences. Rogers, director of the Citrus Research and Education Center in Lake Alfred, says scientists want “to show that we can actually grow citrus in the age of HLB and still be profitable.” “The … Read More

Psyllid Control Strategies

Ernie NeffHLB Management, Psyllids

psyllid

University of Florida Institute of Food and Agricultural Sciences entomologist Jawwad Qureshi discussed several means of Asian citrus psyllid control at Citrus Expo in August. He provides an overview of his presentation. Qureshi says it is best to start psyllid sprays during the winter dormant period. “Do it individually or do it in a collaborative effort, but you must do … Read More

Walls Aim to Keep Psyllids Out

Ernie NeffHLB Management, Psyllids

psyllids

Walls consisting of insect-proof screen held up by telephone poles hold promise for helping growers reduce the cost of controlling HLB-spreading psyllids. The walls serve as artificial windbreaks in a new model grove planted in June at the Citrus Research and Education Center (CREC). The grove was one of numerous projects viewed by more than 500 attendees who came to … Read More

CRDF Update on NuPsyllid Project and More

Ernie NeffHLB Management, Psyllids

Citrus Research and Development Foundation (CRDF) Chief Operations Officer Harold Browning reports on the conclusion of the five-year NuPsyllid project aimed at developing a psyllid that won’t spread HLB. “The NuPsyllid project was a project funded through the USDA competitive grant program and was established in 2012 to develop a psyllid that would not be capable of transmitting the (HLB-causing) … Read More