Make Plans to Attend the 39th Annual Post-Harvest Pest Control Conference!

Please join us for the 39th Annual Post-Harvest Pest Control Conference!

This highly technical two-day conference for researchers, industry personnel and service company representatives will provide updates on recent developments in post-harvest disease control.

The conference will kick-off at 8:00 am on Tuesday, April 17 and conclude at 12:30 pm on Wednesday, April 18.





Job Announcement – HLB Data Analysis Tactical Operations Center (DATOC) Coordinator


Interested Parties should email a resume to


JOB TITLE: HLB Data Analysis Tactical Operations Center (DATOC) Coordinator

REPORTS TO: CRB Director of Data Management
PAY RANGE: $65,000 – $80,000 annualized salary, plus benefits
WORK HOURS: Monday through Friday, full time
LOCATION: Citrus Research Board
217 N. Encina
P.O. Box 230
Visalia, CA


• College graduate
• Successful completion of a comprehensive curriculum in Integrated Pest Management, Plant Pathology, Crop Disease Epidemiology, Bio-informatics, Mathematical Statistics, Agricultural Economics, Information Technology, or Spatial Analysis (GIS) or possessing equivalent relevant knowledge and experience


• Computer skills including MS Office, Large Database, and ArcGIS applications
• Perform routine tasks in an office environment
• Effectively communicate with coworkers, stakeholders, and members of the public
• Adhere to CRB protocols and policies
• Accurately follow directions


• Develop and facilitate HLB DATOC analytic center operations
• Input, review, analyze and interpret diverse data relating to HLB (Huanglongbing, AKA Citrus Greening) biology, epidemiology, risk and management
• Conduct regularly scheduled, structured meetings with DATOC Science Panel members
• Work cooperatively with Citrus Research Board staff and other associated personnel
• Follow safe workplace practices
• Other duties as assigned


• Must be willing to attend training session(s) and / or continuing education courses
• Occasional overnight travel may be required

Complete HLB Data Analysis Tactical Operations Center (DATOC) Coordinator job description can be located HERE

The Citrus Research Board is an equal employment opportunity employer without regard to race, color, national origin, gender, age, marital status, religion, disability, sexual orientation, pregnancy, or veteran status or other characteristic protected by the law.

CRB-Sponsored Citrus Showcase Seminar Latest Available Strategies for Managing ACP in Your Orchards

CRB-Sponsored Citrus Showcase Seminar

Latest Available Strategies for Managing ACP in Your Orchards

After the CCM Citrus Showcase lunch program, stick around and hear Beth Grafton-Cardwell, Ph.D., an Integrated Pest Management Specialist with the University of California, Riverside and the Director of the Lindcove Research and Extension Center deliver a talk about the work her team has been doing studying Asian citrus psyllid (ACP) management for the past several years in southern California. Nastaran Tofangsazi, Ph.D., a post-doctoral researcher at the University of California, Riverside, has been evaluating insecticides and conducting field trials to determine the residual impact of conventional and organic insecticides. This research is supported by a Citrus Research Board (CRB) grant and a U.S. Department of Agriculture (USDA) Technical Assistance for Specialty Crops (TASC) grant. In 2017, Grafton-Cardwell was awarded USDA Multi-Agency Coordination (MAC) Group funding to hire a team of four psyllid scouts to conduct year-round monitoring of 180 commercial citrus orchards in southern California. Their biweekly sampling is ongoing in the Ventura, San Bernardino, Riverside, Temecula, San Diego, Coachella and Imperial citrus growing regions. The orchards use various psyllid management practices, including broad spectrum, soft and organic insecticide strategies. The data the psyllid scouts are collecting is providing critical information about the impact these management strategies have on the psyllid populations and assisting Task Forces and Pest Control Districts in developing effective psyllid management programs. 

An important result of this research is that the psyllid is “all about the flush,” and so the heaviest psyllid populations are occurring in areas where trees are flushing continuously, such as Ventura, Riverside and San Bernardino, and lowest in the desert areas where the flush hardens off for long periods of time. Broad-spectrum, long-residual insecticides reduce psyllid densities the most, especially during the fall when conditions are most favorable for psyllids. ACP populations often start on the edges of groves, and so border treatments could be applied when psyllids begin to develop on these edges, making subsequent whole-orchard, area-wide treatments more effective. 

With the assistance of Sandy Olkowski, Ph.D., at the CRB, the psyllid collections also are providing information for the team to develop a rapid presence-absence method of ACP monitoring, sampling strategies to determine if psyllids are on the borders and treatment thresholds that could be utilized by Pest Control Advisors to assist growers with psyllid management. During the CRB’s Showcase workshop, Grafton-Cardwell will provide an overview of the psyllid management tactics that currently are being conducted around the state and the level of psyllid control being achieved. 

She also will discuss new tactics being developed by researchers that could be added to the grower repertoire to improve existing psyllid management programs. These include the work of Mamoudou Setamou, Ph.D., Texas A&M University-Kingsville, who is working with screened fencing along the edge of orchards, which functions as a barrier to psyllid movement into the orchard. Grafton- Cardwell further will report on the project proposed by Philippe Rolshausen, Ph.D., to study the production of “Citrus Undercover Production System” (CUPS) at the Lindcove Research and Extension Center. This project will enclose citrus in screening to protect it against psyllids and determine the cost of production and the level of productivity of the trees. Additionally, Grafton- Cardwell will provide an update on the research of Mark Hoddle, Ph.D., into the efficacy of biocontrol releases of Tamarixia in residential areas. 

1.0 hour of “Other” Continuing Education Units have been
approved by the California Department of Pesticide Regulation.

Register for 2018 UC Riverside Citrus Day for the Industry

Please join us for the 7th Annual Citrus Field Day, designed for citrus growers and citrus industry representatives. Pending approval, we will be offering 5.0 hours of California Continuing Education Credit for Pest Control Advisers (PCA).


Please call the CRB Office for more information at (559) 738-0246.



Job Announcement – CRB Research Associate


Please submit resumes to

JOB TITLE: CRB Research Associate

REPORTS TO: CRB Chief Research Scientist

CLASSIFICATION: Regular – 12 month, exempt, at-will

LOCATION: CRB office, Visalia, CA

WORK HOURS: Typically Monday through Friday; occasional extended hours and weekends, travel subject to operational demands

SUMMARY: The Citrus Research Board Research Associate provides important support to the Chief Research Scientist for a more professional, proficient and complete department. Writing, editorial, project management, communication and business development skills are necessary.

The Citrus Research Program is a grower-funded and grower-directed program established in 1968 under the California Marketing Act as a mechanism for enabling the California citrus growers to sponsor and support needed scientific and technical research to further the goals of the California citrus industry. The program is administered by the Citrus Research Board, which is commonly referred to as the CRB.

• Serve as a key science-oriented administrative assistant to the Chief Research Scientist.
• Serve as a member of the Citrograph editorial team. In this capacity, assist in determining quarterly issue content, article creation, formatting, proofing, editing and determining strategic direction of the publication.
• Under the direction of the Chief Research Scientist, write “white papers”, concept documents and other citrus-related documents.
• Provide staff assistance for the administrative details of the Research Development & Implementation Committee. This involves working with the Chief Research Scientist, President, Committee Chairman, Committee Members and consultants/attorneys.
• Draft meeting notices and agendas in compliance with Bagley-Keene Open Meeting rules. Prepare and submit minutes in a timely, correct and professional manner.
• Provide leadership in the Research Department as directed by the Chief Research Scientist in terms of project management. Details include involvement in establishing research priorities, drafting the Request For Proposals (RFP), and determining the research consideration and award schedule.
• Communicate regularly with researchers, staff and board/committee members. The research associate will receive and review research reports, receive and review research pre-proposals/proposals, communicate impending deadlines to researchers/potential researchers, provide leadership in regularly communicating to the research community the work of the Citrus Research Board through direct communication and through electronic newsletters and website postings.
• Participate as a member of the Research Department in the Researcher Engagement Program as developed and directed by the Chief Research Scientist.
• Perform other duties as assigned by the Chief Research Scientist and/or the President.

• Clear, effective written and oral communication.
• Self-starter with pride in the outcome of the final project.
• Ability to serve at the direction of the Chief Research Scientist in writing meeting notices, agendas and meeting minutes.
• Thoroughness and accuracy.
• Knowledge, experience and ability to assist researchers, committee members, staff, professional consultants and others in identifying viable inventions for field testing and commercialization.
• Ethical conduct and the ability to exercise confidentiality.
• Ability to create and organize files.
• Ability to meet deadlines and organizational goals.

B.A. or B.S. in communications or life sciences field is required. Industry experience in science communication, entrepreneurial commercialization, and/or research project management may be substituted. Solid experience and knowledge of Microsoft Outlook, Word, DropBox, Office 365, PowerPoint and Excel is a necessity. Must be a U.S. citizen or have permanent residency.

• Possession of a valid California Driver’s License and clean driving record.
• Occasional out-of-town, multi-day business trips will be necessary.
• Preparing and delivering oral presentations.
• Ability to work both independently and in group settings for problem solving and collaboration.
• Extensive writing, formatting, editing and proofing is a major part of this position.
• Competent use of standard office equipment such as computers, scanners, database management software, telephones and photocopiers.
• Lifting of boxes weighing up to 35 pounds.

The Citrus Research Board is an equal employment opportunity employer without regard to race, color, national origin, gender, age, marital status, religion, disability, sexual orientation, pregnancy, or veteran status or other characteristic protected by the law.

CRB to Host New Assessment Form Trainings

Effective October 1, 2017, deliveries to packing houses will need to use a new CRB assessment form. The form will be available on the CRB website as we are creating a new database to allow for the electronic submission of forms. The changes can be explained in three factors:

  1. Please submit organic production separately from conventionally produced citrus. We have developed two different forms: one for each type of production.
  2. Please submit your production as delivered from each of the three production districts.
  3. Please submit your production by the detail of varietal type and cultivar as afforded on the respective assessment form.


Please note that the data being supplied is distributed in an accumulated form to assure confidentiality for every grower.

The Citrus Research Board is conducting a series of meetings to present the assessment form changes. The meeting is geared toward packing house managers and assessment administrative staff. Please find information about meeting dates, times and locations below.


CLICK HERE for more information

     Please RSVP before November 3rd by emailing or by calling

Tiffany Silveira at 559-738-0246.

CLICK HERE to download flyer

2017 California Citrus Conference

The Citrus Research Board (CRB) is excited to announce our annual California Citrus Conference on October 11 in Visalia, California, at the Wyndham Hotel. The entire citrus industry is invited to participate in the free one-day conference, which will highlight the “best of the best” in citrus research.

What: California Citrus Conference

Where: Wyndham Hotel, Visalia, CA


When: Wednesday, October 11, 2017


Conference Schedule

6:30 a.m. – 9:00 a.m.
Free Breakfast Buffet
7:00 a.m. – 9:00 a.m.
Train the Trainer: Best Practices for Citrus Field Crews to Prevent the Spread of ACP/HLB.
Pre-registration is required, as space is limited.
SPECIAL REGISTRATION IS REQUIRED – Register for this session at or by phone at (559) 592-3790.
Note: This training will be conducted in Spanish only.
9:00 a.m.
Welcome to the California Citrus Conference
Gary Schulz, President, Citrus Research Board
9:10 a.m.
The Very Latest in Asian Citrus Psyllid (ACP) and Huanglongbing (HLB) Treatment Strategies and Detection Challenges
 Beth Grafton-Cardwell, Ph.D., Director of Lindcove REC & Research Entomologist University of California, Riverside and Carla Thomas, Plant Pathologist and Epidemiologist, University of California, Davis
10:00 a.m.
Exploration and Exploitation of the Microbial Communities that Associate with Citrus Trees
Johan Leveau, Ph.D., Professor of Plant Pathology, University of California, Davis
10:40 a.m.
Morning Break/ Scientific Poster Touring
11:00 a.m.
Improving Nitrogen Management of Citrus
 Steve Petrie, Ph.D., Director, Agronomic Services, Yara North America, Inc.
11:30 a.m.
An Address to California Citrus Growers
 Karen Ross, Secretary of the California Department of Food and Agriculture
12:00 p.m.
Lunch/ Poster Session Touring
1:15 p.m.
Being Active is Not Being Bold
 Joel Nelsen, President, California Citrus Mutual
1:40 p.m.
An Update from the Citrus Pest and Disease Prevention Committee (CPDPC)
Nick Hill, Chairman, CPDPC
1:55 p.m.
Priority Post-Harvest Research to Control Insect Pests of California Citrus
Spencer Walse, Ph.D., Research Chemist, USDA-ARS, San Joaquin Valley Agricultural Sciences Center
2:25 p.m.
A Panel Discussion: Biological Control Program for Asian Citrus Psyllid (ACP) in California and Arizona
 Greg Simmons, Ph.D., Entomologist, USDA-APHIS; David Morgan, Ph.D., Biocontrol Specialist, California Department of Food and Agriculture and Richard Stouthamer, Ph.D., Entomologist, University of California, Riverside
3:10 p.m.
Afternoon Break/ Scientific Poster Touring
3:30 p.m.
Citrus Breeding for California: New Tools to Meet the Challenge of HLB
 Mikeal Roose, Ph.D., Professor of Genetics, University of California, Riverside
4:10 p.m.
Streamlining the Introduction of Citrus Varieties from Huanglongbing Infested Areas into California. A case study – Florida.
 Georgios Vidalakis, Ph.D., Professor and UC Extension Specialist in Plant Pathology, University of California, Riverside and Director, Citrus Clonal Protection Program
4:50 p.m.
Closing Session/ Door Prize Giveaway (must be present to win)
5:00 p.m.
Conference Concludes


Continuing Education (CE) Units

4-hours of Continuing Education (CE) “Other” Units have been approved by the California Department of Pesticide Regulation. 

Certified Crop Adviser (CCA) Units
Certified Crop Adviser (CCA) Units have been applied for and will be available to conference attendees, pending approval. 


Hotel Accommodations

Wyndham Hotel – Visalia, CA

9000 W. Airport Drive

Visalia, CA 93277

(559) 651-5000

Special Rate of $99 per night available 

Mention Group Code: Citrus Research Board

Room block rates are valid through OCTOBER 4


We look forward to seeing you on October 11 at the California Citrus Conference!


CRB HLB External Scientific Review – Final Report

The Citrus Research Board (CRB) has released the final report of the HLB External Review, conducted at University of California, Davis on August 14-18, 2017. This report is for use in making future research funding decisions, closing research gaps, encouraging closer collaboration and other purposes as identified in the report.


Citrus Research Board Hires New Lab Director

The Citrus Research Board (CRB) has announced the recent hiring of Qijun Xiang, Ph.D., as director of the Jerry Dimitman Laboratory in Riverside, California. 

As lab director, Xiang will work to re-establish a US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS)-certified high throughput diagnostic laboratory designation for HLB detection with initial emphasis placed on ACP samples. He will report directly to CRB President Gary Schulz and will supervise laboratory staff responsible for preparing and analyzing insect and plant samples. Xiang’s group will work with CRB staff and other agencies such as the California Department of Food and Agriculture/Citrus Pest and Disease Prevention Program, USDA-APHIS, USDA Agricultural Research Service and county pest control districts on regional diagnostic programs.