Citrus Expo

A Glimpse at CRDF Programs and Planning

Tacy CalliesCitrus, News from our Sponsor

By Harold Browning Column sponsored by the Citrus Research and Development Foundation As we start the new fiscal year at the Citrus Research and Development Foundation (CRDF), there are a number of priority activities in place to focus effort and resources on important tools for managing citrus in the presence of HLB. Here are some highlights. Currently, CRDF is sponsoring …

citrus greening

HLB Found in California Citrus Birthplace

Abbey TaylorCalifornia Corner, Citrus Greening

A citrus tree in the city of Riverside tested positive for huanglongbing (HLB) disease. The detection is the first case of HLB found in a major citrus-producing county and the most northern in California. The California Department of Food and Agriculture (CDFA) confirmed the detection of HLB disease in a sample taken from a grapefruit tree located in a Riverside …

Sneak Peek: August 2017 Citrus Industry Magazine

Tacy CalliesSneak Peek

The August issue of Citrus Industry magazine serves as the show guide for the 2017 Citrus Expo. Now in its 26th year, Citrus Expo is the largest trade show and seminar program of its kind in the United States. The event takes place August 16–17 at the Lee Civic Center in North Fort Myers, Florida. This year, Citrus Expo is …

HLB management

Management Plan for Roots of HLB-Infected Trees

Abbey TaylorCitrus Greening, HLB Management

By Jaci Schrekengost As huanglongbing (HLB) continues to decimate citrus crops, researchers continue to search for new, efficient ways growers can manage the disease. HLB, also known as citrus greening disease, is vectored by the Asian citrus psyllid. The disease affects the entire tree, including the roots and fruit. Tripti Vashisth, assistant professor and citrus Extension specialist at the University …

citrus greening

UC Puts HLB Research Online in Easy-To-Read Updates

Len WilcoxCalifornia Corner

California citrus farmers have their ears perked for all news related to Asian citrus psyllid (ACP), huanglongbing (HLB) disease and HLB research, but some of the very latest advances have been available only in highly technical research journals, often by subscription only. University of California (UC) Cooperative Extension scientists are now translating the research into readable summaries and posting them …

Florida citrus growers

UF Researcher Working on HLB Solutions

Abbey TaylorCitrus Greening, HLB Management

By Jaci Schreckengost All research at the Citrus Research and Education Center (CREC) at the University of Florida (UF) currently deals with huanglongbing (HLB) to help protect the citrus industry. “Even if we’re interested in looking into other things, this needs to be solved in order to be able to have an industry to work with in the future,” says …

planting

High-Density Planting Increases Yields

Ernie Neffplanting

Larry Black, general manager of Peace River Packing Company in Fort Meade, told growers at the recent Florida Citrus Mutual conference about his company’s success with high-density plantings. Black reported some four-year-old Valencia blocks are producing more than 300 boxes per acre. That’s double the current average Florida citrus yield of about 150 boxes per acre in the face of …

citrus

UF/IFAS Microbiologist Works Toward Greening Treatment

Daniel CooperCitrus Greening, Industry News Release

by Brad Buck, University of Florida Institute of Food and Agricultural Sciences In the same year the University of Florida’s (UF) Citrus Research and Education Center (CREC) celebrates its 100th anniversary, Nian Wang believes he may be close to finding the “off switch” for greening, the disease devastating Florida’s multi-billion-dollar-a-year citrus industry. Wang, an associate professor of microbiology and cell sciences …

Capitol building

California Budget Adds Funds to Fight HLB

Len WilcoxCalifornia Corner, Legislative

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 …

Sneak Peek: July 2017 Citrus Industry Magazine

Tacy CalliesResearch, Sneak Peek, Technology

Technology and equipment are the main themes of the July issue of Citrus Industry magazine. Not to be missed in this issue is a cover story on University of Florida citrus breeder Fred Gmitter, written by senior correspondent Ernie Neff. The article explores the genetic technologies Gmitter is using to create improved citrus varieties. You’ll also learn some surprising facts …

citrus greening

Citrus Greening Detected in Alabama

Daniel CooperCitrus Greening, Industry News Release

A plant disease that presents a serious threat to the U.S. citrus industry has been detected in Alabama. Federal and state plant health officials have confirmed the identification of citrus greening, also known as huanglongbing or HLB, which is caused by the bacterial pathogen Candidatus Liberibacter asiaticus. This is the first confirmation of citrus greening in Alabama despite biannual surveys …

Citrus Expo

What Have We Learned?

Tacy CalliesCitrus, News from our Sponsor

By Harold Browning Column sponsored by the Citrus Research and Development Foundation Within the Citrus Research and Development Foundation (CRDF), the daily challenge of keeping up with a wide array of HLB topics, more than 75 currently funded projects, and monthly committee and board meetings translates into a constant flow of information. Project managers meet weekly to discuss progress and …

Capitol building

California to Increase Citrus Grower Fees

Len WilcoxLegislative

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 …

black spot

Keeping Young Trees Free of HLB

Ernie NeffHLB Management, Thermotherapy

Plant pathologist Megan Dewdney was one of the University of Florida Institute of Food and Agricultural Sciences researchers who summarized scientific presentations made at the 2017 International Research Conference on HLB. She and others spoke at an HLB Grower Day in Lake Alfred, putting the complex presentations into terms more understandable to those who aren’t scientists. Dewdney discussed young tree …

Lawsuit Filed to Stop Argentine Lemons

Len WilcoxCitrus

California lemon growers are suing the U.S. government for allowing Argentine lemons into the United States. The U.S. Citrus Science Council (USCSC), representing approximately 750 family citrus farmers, has filed the lawsuit against the U.S. Department of Agriculture (USDA) in federal district court in Fresno, California. Members of the California citrus industry are challenging the rule because the Administrative Procedure …

HLB

Tree Assistance Program Aids Florida Citrus Growers

Daniel CooperCitrus, Citrus Greening, Industry News Release

By Lauren Moore, FSA Public Affairs Specialist Adversity isn’t a stranger to Florida citrus growers. Throughout Florida’s history of citrus production, producers have dealt with damages left in the wake of multiple hurricanes and freezes. Larry Black is a fifth-generation citrus grower and general manager of Peace River Packing Company in Polk County, Florida. His family has been a part …

An Update on UF/IFAS-Grower Citrus Nutrition Trials

Tacy CalliesNutrition

By Tripti Vashisth Mineral nutrition plays an essential role in a plant’s life cycle and is critical for its growth and development. Since the early 19th century, the importance of mineral nutrition for plants has been recognized, and fertilization has become an important aspect of crop production. At least 17 mineral nutrients are considered essential for plants. These include carbon, …

HLB

Growers Share HLB Frustrations and Experiences

Ernie NeffBactericides, HLB Management, Psyllids

Growers shared their frustrations and experiences with HLB at a May 4 grower roundtable meeting in Wauchula. Event co-host Steve Smith, executive director of Peace River Valley Citrus Growers Association, summarizes the discussions. “A lot of the growers were talking about fertigation and how much, and what’s working for them on the short-term basis as far as tree health goes,” …

Controlled-Release Fertilizer Boosts Health of HLB Trees (Part 2)

Tacy CalliesCitrus, Nutrition

By Pete Spyke, Joby Sherrod and Jude Grosser Part 1 of this article, published in the April 2017 issue of Citrus Industry magazine, provided some background information on controlled-release fertilizer (CRF) along with a discussion of practical applications in citrus production. This article, part 2, includes summaries of observations from several case studies in which CRF has been applied for …