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 …

Research Update: Citrus Under Protective Screen

Tacy CalliesCUPS

By Arnold Schumann, Timothy Ebert, Laura Waldo, Danny Holmes, Napoleon Mariner, Gary Test, Chris Oswalt, Rhuanito Ferrarezi and Ricardo Lesmes Two studies with citrus under protective screen (CUPS) were established at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) and Indian River Research and Education Center (IRREC) in 2013–14. The goal …

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 …

citrus

Citrus Tree Covers Keep Deadly Psyllids Away

Daniel CooperCitrus Greening, HLB Management, Research

University of Florida (UF) scientists are finding that by covering new citrus trees with mesh, they can keep disease-carrying insects from harming the plants. That could be a big step toward stemming the deadly citrus greening disease, UF Institute of Food and Agricultural Sciences (IFAS) researchers say. Asian citrus psyllids can infect the citrus trees with greening, also known as …

citrus

CUPS Protects Citrus from HLB and Storms

Daniel CooperCitrus Greening, CUPS, Research

A system designed to protect citrus trees from the deadly greening disease withstood the ravaging winds of Hurricane Irma last year, University of Florida scientists say. With reinforcements installed after the storm, they’ll likely withstand even more dangerous storms. Using citrus under protective screening (CUPS), growers can keep the Asian citrus psyllids away from their trees, said Arnold Schumann, a …

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 …

psyllids

Combating Citrus Greening with Fungus

Tacy CalliesCitrus Greening

By Breanna Kendrick The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is testing an insect-killing fungus to combat the Asian citrus psyllid (ACP). Pasco Avery, biological scientist at the UF/IFAS Indian River Research and Education Center in Fort Pierce, is researching the use of fungus-oil sprays and assessing the effects on ACP, the insect that transmits the …

Citrus Expo Presentations Now Available

Abbey TaylorCitrus Expo

The 27th annual Citrus Expo saw great success as growers piled into the Lee Civic Center on Aug. 15–16 in North Fort Myers, Florida. Growers experienced the biggest trade show in Citrus Expo history, as well as extended citrus seminar sessions. The educational program, titled “Planting Tomorrow’s Profits,” featured presentations on the latest research from the University of Florida Institute …

aphis

Florida Citrus Acreage Declines Again

Ernie NeffAcreage

Florida’s citrus acreage continued a long descent in 2018, decreasing 2 percent to 447,012 acres. The total number of acres is the least since the U.S. Department of Agriculture’s National Agricultural Statistics Service began keeping count in 1966. The 2018 count was released on Aug. 28. There was a gross loss of 20,114 acres in 2018, partially offset by new …

psyllids

Control of Citrus Flush Timing Could Improve Psyllid Control

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

They say timing is everything in life, and that’s certainly true of the Asian citrus psyllid, which has devastated Florida agriculture for the past decade by transmitting citrus greening disease, also known as huanglongbing or HLB. To reproduce, this small, flying insect must lay eggs on citrus “flush” – the tender new leaves and shoots that citrus trees produce several …

UF/IFAS Researchers Search for Solutions to Citrus Diseases with Citrus Initiative Funds

Daniel CooperCitrus, Citrus Greening, Industry News Release, Research

From nutritional supplements to managing irrigation to grower outreach and education, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are finding additional ways to support Florida citrus growers in their fight against citrus greening disease. Twelve projects were funded by the state legislature-funded Citrus Initiative program in 2017-2018 that looked at possible short- and long-term solutions that …

System Stops Psyllid Travel

Tacy CalliesCalifornia Corner

By Len Wilcox Researchers with the U.S. Department of Agriculture (USDA) believe that an effective measure has been found that will reduce the risk of spreading huanglongbing (HLB) disease between orchards. The control measure is a fogging system with a carrier and a pesticide that effectively destroys disease-bearing insects before they can leave the orchard and do further harm. NO …

hlb

Ted Yoho: Citrus Greening Research Funding Is Imperative

Abbey TaylorCitrus, Citrus Greening, Farm Bill

The House and the Senate have passed their versions of the farm bill. Now it is time for appointed legislators to hammer out the details for the final version of the bill. Ted Yoho, U.S. Congressman and member of the House Committee on Agriculture, believes that including funding for citrus greening is vital for the Florida citrus industry. Yoho recently …

psyllid

Overcoming Psyllids’ Resistance to Insecticides

Ernie NeffHLB Management, Psyllids

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 …

Artificial Intelligence for Detecting Citrus Pests, Diseases and Disorders

Tacy CalliesTechnology

By Arnold Schumann, Laura Waldo, William Holmes, Gary Test and Tim Ebert Artificial intelligence (AI) is increasingly common in electronic devices at home or work, in social media, video streaming services, electronic commerce, and in internet search engines. Now, AI is rapidly entering the farming scene. Growers using modern precision agriculture tools and techniques often face a barrage of high …

Cold-Hardy Citrus for North Florida

Tacy CalliesVarieties

By Xavier Martini and Peter Andersen Cold-hardy citrus has a long history in North Florida, Alabama, Louisiana and Georgia. Records show that sweet orange, citron, lemon, lime and pummelo were brought to Saint Augustine, Florida, from Spain in 1565. However, it was not until the late 1700s that the Jesuits introduced satsuma (Citrus unshiu) to what is now Louisiana. SATSUMA …

California Industry Updates Presented at Spring Citrus Meeting

Daniel CooperCitrus Greening, Diseases

By Brian German The Spring Citrus Meeting held last week in Tulare County touched on several major issues growers are concerned with, and included presentations on best practices for managing citrus trees. The day began with important information related to Asian citrus psyllid (ACP) and the disease it causes, huanglongbing (HLB), which has been growing at an alarming rate in …

hlb

Certis for Citrus Program Helps Fund Fight Against HLB

Daniel CooperIndustry News Release

The biopesticide company, Certis USA, presented the non-profit Citrus Research and Development Foundation, Inc. (CRDF) with a check for $20,000 to help fund research projects in an effort to find a cure for huanglongbing (HLB; citrus greening). The presentation was made during the Florida Citrus Industry Annual Conference that took place at the Hyatt Regency Coconut Point Resort and Spa. …

Strong Finish for 2017–18 Brazilian Citrus Season

Tacy CalliesGlobal Perspectives

By Marcos Fava Neves The last Fundecitrus announcement (April 10) of the season for the Brazilian citrus crop was 398.35 million boxes. This includes: 77.48 million boxes of Hamlin, Westin and Rubi 18.02 million boxes of Valencia Americana and Valencia Argentina 118.47 million boxes of Pera Rio 139.62 million boxes of Valencia 44.76 million boxes of Natal (Navel) SEASON SUMMARY …

climate

For Psyllids, Kaolin Clay Beats Foliar Insecticides

Ernie NeffHLB Management, 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 …