Oxytetracycline Sprays vs. Trunk Injections

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

florida citrus

Since 2016, federal authorities have allowed Florida citrus growers to spray oxytetracycline solutions on their trees to combat citrus greening disease. A newly published University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study suggests that the bactericide would be more effective if it were injected into citrus tree trunks, a practice not currently approved under U.S. law. Citrus … Read More

Voluntary Best Practices for California Citrus Growers’ Response to HLB

Daniel CooperCalifornia Corner, HLB Management, Industry News Release

hlb

Best Practices Developed by Grower-Led, Science-Supported Task Force To provide California citrus growers with a strong toolbox of science-supported strategies and tactics to protect their orchards from huanglongbing (HLB), the Citrus Pest & Disease Prevention Committee endorsed a set of best practices for growers to voluntarily employ in response to HLB in California. The recommendations — which were developed based … Read More

Studying Citrus Greening with an Integrated Approach

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

citrus greening

While citrus growers continue to look for best management approaches to deal with the deadly greening disease, scientists will take an integrated look at how to protect young trees by using existing tools growers can use. Five scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will compare insect management tools, including insect-proof netting. Researchers also … Read More

Large-Scale Citrus Field Trials Idea Surfaces

Daniel CooperCitrus, Citrus Greening, HLB Management, Research

scale

Citrus research continues to be a topic in state and federal funding circles as the industry’s battle with HLB, or citrus greening, continues. One idea in the incubator of industry discussion is the Citrus Research and Field Trial (CRAFT) program. It would involve large-scale grower field trials throughout Florida. Rick Dantzler, chief operating officer of the Citrus Research and Development … Read More

Visalia ACP Find Was a Breeding Population

Len WilcoxCalifornia Corner

fungus

The Asian citrus psyllids (ACP) found last week in a residential area in north Visalia, California, were a breeding population, according to Greg Douhan, University of California Cooperative Extension farm advisor for citrus. The ACP were found in four locations in the city, not in close proximity to any agricultural operations. “Most of the findings found in the San Joaquin Valley … Read More

Numerous ACP Found Near Visalia, California

Len WilcoxCalifornia Corner, Citrus

citrus greening

A large population of Asian citrus psyllids (ACP) and nymphs were found in an older residential area northwest of Visalia, California, last week. With multiple life stages of ACP found, county and state officials have moved into eradication mode immediately. According to the Visalia Times-Delta, 250 ACP were found in four locations. California Citrus Mutual reported that up to 400 … Read More

As California HLB Detections Rise, Priorities Refocus

Daniel CooperCalifornia Corner, Citrus, Citrus Greening, HLB Management

hlb

By Brian German A series of strategic planning sessions have helped to craft a more detail-oriented approach to address the spread of Asian citrus psyllid (ACP) and management of huanglongbing (HLB) detections. As of Oct. 9, there have been 906 positive HLB detections in California. “The real hot spot for us right now is Orange County. We’re finding a lot of HLB-positive … Read More

CUPS Protects Citrus from HLB and Storms

Daniel CooperCitrus Greening, CUPS, Research

citrus

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 … Read More

HLB-Detector Dogs Coming to California

Len WilcoxHLB Management

The use of canines or “sniffer dogs” is again being investigated by the U.S. Department of Agriculture (USDA) for early detection of HLB-infected trees. Through the HLB Multi-Agency Coordination (MAC) program, USDA Animal and Plant Health Inspection Service (APHIS) has invested millions of dollars in the research and training of detector canines for finding HLB-positive trees. A recent full-day meeting in … Read More

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 … Read More

Certis for Citrus Program Helps Fund Fight Against HLB

Daniel CooperIndustry News Release

hlb

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. … Read More

Researchers Find How HLB Bypasses Citrus Immune System

Len WilcoxHLB Management

citrus greening

Researchers at the University of California, Riverside (UCR) claim they have made an important step in understanding the molecular mechanism of huanglongbing (HLB). They believe they have found the mechanism by which the disease evades detection and destruction by the natural immune system of citrus trees. HLB, or citrus greening disease, has devastated groves in Asia, South America and the … Read More

Single Breakthrough Discovery for HLB in Florida Unlikely

Daniel CooperCitrus Greening, Industry News Release

citrus greening

A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine.  The committee that wrote the report called for a systems approach to prioritize research on the disease and strategically distribute resources for research to effectively manage the disease, which is the most … Read More

HLB Conference to Be Held in California

Len WilcoxHLB Management

citrus greening

The sixth International Research Conference on Huanglongbing (IRCHLB VI) will be held in California. The conference has been scheduled for March 12-16, 2019, at the Riverside Convention Center in Riverside. This is the first time the conference will be held in California. Sponsored by the California Citrus Research Board (CRB) with the support of California’s citrus industry partners, the gathering … Read More

California Amends HLB Quarantine Zones

Len WilcoxHLB Management

  On Jan. 1, 2018, the California Department of Food and Agriculture (CDFA) implemented an emergency regional quarantine to more effectively protect California citrus from huanglongbing (HLB) disease. The quarantine created seven zones: 1) counties where HLB has not been detected and are not next to citrus-producing counties or the Mexican border; 2, 3 and 4) counties widely infested with ACP … 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

CUPS Test to Begin at California Research Center

Len WilcoxCalifornia Corner

University of California (UC) scientists at the Lindcove Research and Extension Center (LREC) will soon begin to test the effect of growing citrus under protective screen (CUPS). CUPS is a proposed new method of controlling huanglongbing (HLB), or citrus greening disease, by keeping psyllids, small insects known to spread the disease, away from the trees. The test will evaluate the … Read More

California Budget Adds Funds to Fight HLB

Len WilcoxLegislative

Capitol building

California is adding funds to help the fight against HLB. Governor Brown signed the 2017 Budget Act this week, which authorizes $10 million to fight the spread of the invasive Asian citrus psyllid (ACP) insect and the deadly and incurable plant disease it can carry, huanglongbing (HLB). “California Citrus Mutual applauds Governor Brown and members of the California Legislature for … Read More

California County Supervisor Makes Plea to Stop HLB

Len WilcoxCalifornia Corner

citrus greening

San Bernardino County Supervisor James Ramos is asking his constituents to help preserve the citrus industry and protect citrus trees in their area from HLB. In an article he wrote for a community newspaper (The Press-Enterprise), Ramos pointed out that citrus is a staple crop of San Bernardino County and has a rich history that traces as far back as … Read More

California to Increase Citrus Grower Fees

Len WilcoxLegislative

Capitol building

The California State Assembly approved a bill that will allow the citrus industry to increase fees to provide funds for activities to protect residential and commercial citrus trees from the Asian citrus psyllid (ACP) and the deadly huanglongbing (HLB) plant disease it can carry. SB 243 by Senator Galgiani (Stockton) allows for an additional $9.6 million in grower assessments to … Read More