Advice on Picking Rootstocks

Ernie NeffRootstocks

Growers who attended a recent Citrus Research and Development Foundation (CRDF) rootstock field day in Highlands County should look at similar CRDF trials when deciding what rootstocks to plant. That’s the opinion of Jim Graham, a CRDF project consultant who spoke at the event last month. The same six rootstocks with Valencia scions that are in field trials in Highlands …

Redefining Orange Juice?

Ernie NeffOrange Juice

Some Florida citrus processors, scientists, grower representatives and others recently started discussions about the feasibility of changing the legal standard of identity for orange juice (OJ). Under current U.S. Food and Drug Administration standards of identify for OJ, only sweet orange can be used in OJ products without limitation. Only 10 percent of juice from mandarins or citrus hybrids can …

nutrition

Citrus Research and Field Trial Program Update

Ernie NeffResearch

A multimillion-dollar federal program to establish thousands of acres of citrus research field trials in Florida has undergone significant changes in recent months. The Citrus Research and Development Foundation (CRDF) spent much time on May 21 hearing about new developments in the Citrus Research and Field Trial (CRAFT) program. CRDF Chief Operating Officer Rick Dantzler summarizes developments in the timing …

Grower Picks Favorites at Rootstock Trial

Ernie NeffRootstocks

Gardinier Florida Citrus General Manager Lee Jones named two rootstocks that looked appealing at an April 25 Citrus Research and Development Foundation (CRDF) rootstock field day in Highlands County. “(US) 942 kind of stands out to me,” he said. “(US) 812 looks good,” he added. “What we’re learning as we’re going is we’ve got to spoon feed this (citrus trees) …

florida citrus

Florida Citrus Hall of Fame Inductees Chosen for 2019

Daniel CooperCitrus, Industry News Release

Three distinguished leaders will be inducted into the Florida Citrus Hall of Fame at the 57th Citrus Celebration Luncheon at 11:30 a.m. on March 8 at Florida Southern College in Lakeland. Tim Hurner of Sebring, Richard J. Kinney (deceased), formerly of Lakeland, and Peter McClure of Port Saint Lucie will be honored at the luncheon. Hurner Tim Hurner is a fourth-generation Florida …

Increasing Yield Through High-Density Plantings

Tacy Calliesplanting

By Rhuanito Ferrarezi, Alan Wright and Arnold Schumann High-density plantings have been tested worldwide in advanced citrus production systems (ACPS) to increase efficiency of water, fertilizer and light, and to maximize yield per area. After the onset of huanglongbing (HLB) in Florida, canopy growth reduced drastically due to negative impacts on plant health, creating the need for new plant spacing …

Black Discusses HLB Research Meeting

Ernie NeffHLB Management

Larry Black, president of Florida’s Citrus Research and Development Foundation (CRDF), attended a recent meeting in Fort Pierce to discuss HLB research prioritization and funding. He joined officials with other agencies that fund HLB, including California’s Citrus Research Board (CRB) and the U.S. Department of Agriculture (USDA). Black says the agencies met “to look at ways we can be more …

HLB

‘No Positive Response’ from Bactericides

Ernie NeffBactericides, HLB Management

Citrus Research and Development Foundation (CRDF) President Larry Black discusses grower trial results indicating bactericides used for HLB infection did not increase citrus yields. The results were presented by CRDF staff at a recent meeting of the organization. Black says numerous growers who were using bactericides for HLB volunteered to leave sections of their groves untreated. “CRDF staff went out …

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. …

HLB

Zinkicide Could Help Manage HLB

Ernie NeffHLB Management

University of Florida Institute of Food and Agricultural Sciences researcher Evan Johnson reports that the product Zinkicide appears promising as a management tool for HLB. “Zinkicide is a zinc-based nanoparticle that is designed to become systemic inside the tree and has high bactericidal activity so that hopefully it can target Liberibacter,” Johnson says. Liberibacter is the causal agent of HLB. …

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 …

research

Committed to Clientele-Focused Leadership

Tacy CalliesNews from our Sponsor

By John Arthington Column sponsored by the Citrus Research and Development Foundation Hello. I want to take this opportunity to introduce myself and my new role at the Citrus Research and Development Foundation (CRDF). As many of you are aware, Harold Browning retired as chief operations officer (COO) to pursue other opportunities in private industry. At that time, Larry Black …

Call for Proposals Is Coming Soon!

Tacy CalliesNews from our Sponsor

Column sponsored by the Citrus Research and Development Foundation The mission of the Citrus Research and Development Foundation (CRDF) is to advance disease and production research and product development activities to ensure the survival and competitiveness of Florida’s citrus industry through innovation. Since the inception of CRDF, the majority of investment has focused on HLB, while still addressing strategic topics …

citrus greening

Single Breakthrough Discovery for HLB in Florida Unlikely

Daniel CooperCitrus Greening, Industry News Release

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 …

HLB

Browning to Take New Role in HLB Battle

Ernie NeffBactericides, HLB Management

Citrus Research and Development Foundation Chief Operations Officer Harold Browning will resign at the end of March to pursue HLB control strategies for Premier Citrus ApZ, a branch of Vero Beach-based Premier Citrus. At his new position, Browning says he will work “on further testing and commercialization of strategies to control HLB in the field.” Specifically, Browning will work with …

Browning to Resign from Citrus Research and Development Foundation

Tacy CalliesIndustry News Release

Larry Black, president of the Citrus Research and Development Foundation (CRDF) board of directors, announced that Harold Browning is resigning as CRDF chief operations officer on March 31, 2018. Browning has served the CRDF and the citrus industry in this role since April 2011. “Harold has a unique skill set as a scientist, administrator and industry ambassador that has served the …

HLB Management, PGRs and Fruit Drop

Tacy CalliesNews from our Sponsor

Column sponsored by the Citrus Research and Development Foundation Plant growth regulators (PGRs) are chemicals that increase or decrease plant growth, flowering and/or fruit set. PGRs include some herbicides. This article summarizes research studies on how PGRs might aid in the management of HLB. Although several successful herbicide practices were developed by University of Florida Institute of Food and Agricultural …

HLB

Grower Input on HLB Research Needs

Ernie NeffHLB Management, Research

Lee Jones, general manager of Gardinier Florida Citrus, was one of several growers offering suggestions for upcoming HLB research at a recent Citrus Research and Development Foundation (CRDF) Research Management Committee session. He summarizes some of the suggestions he and others offered. Jones notes that several suggestions were made regarding bactericides, which growers got access to in spring 2016. He …

HLB

HLB Issues Below the Soil Surface Intrigue Growers

Ernie NeffCitrus Greening, HLB Management, Research

Several citrus growers and production managers offered input on future HLB research at a meeting on Feb. 15 at the Citrus Research and Education Center in Lake Alfred. The growers shared their thoughts with members of the Citrus Research and Development Foundation’s Research Management Committee (CRDF-RMC). David Howard, CRDF-RMC chairman, provides an overview of the approximately three-hour session called specifically …

crdf

Update on Thermotherapy Research

Tacy CalliesNews from our Sponsor, Thermotherapy

Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …