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February 2020 | E-Newsletter
CRB to Release Request for Research Proposals for the
2020-2021 Fiscal Year on
February 14, 2020

     The Citrus Research Board will release the 2020-2021 Request for Proposals (RFP) on February 14, 2020 for scientific research projects that address the needs of California citrus growers. Key priorities for the organization this year include research efforts to provide both short- and long-term solutions to huanglongbing (HLB or citrus greening), research that addresses water and labor needs and securing adequate data to support trade activities and deal with barriers to citrus exports.
Proposals will be accepted through March 13, 2020.
2020 UCR Citrus Day for the Industry Recap

     On Wednesday, January 29, 2020 the University of California, Riverside and the Citrus Research Board co-hosted the 9th Annual Citrus Field Day at the UC Riverside Agricultural Operations facility. The full-day seminar had record attendance with over 200 attendees ranging from citrus growers, citrus industry representatives and university faculty.
     The program consisted of huanglongbing quarantine enforcements and updates, lessons learned in pest management, microbiome on citrus health and a mealybug update. A special presentation was made by Ted Batkin to honor Dr. Beth Grafton-Cardwell and her many years of service to the citrus industry.
     The afternoon sessions consisted of drone demonstrations, canine detection drills with scent pads and a display of UCR's citrus varieties. Weather aside, the 2020 UCR Citrus Day for the Industry was a great success!    

Sites and Scenes from the
2020 UC Riverside Citrus Day for the Industry

Thank you to all of our speakers
Dr. Kathryn Uhrich, University of California, Riverside
Dr. Melinda Klein, Citrus Research Board
Ruben Arroyo, Riverside County Ag Commissioner
Victoria Hornbaker, California Department of Food and Agriculture
Ted Batkin, Batkin Agricultural Services
Dr. Beth Grafton-Cardwell, University of California, Riverside
Dennis Donahue, Western Growers Association
Mike Allen, University of California, Riverside
Dr. Peggy Mauk, University of California, Riverside
Dr. Monique Rivera, University of California, Riverside
Dr. Caroline Roper, University of California, Riverside
Dr. Elia Scudiero, University of California, Riverside
Dr. Bill Schneider, F1-K9
Bill Moriatis, F1-K9
Dr. Mike Roose, University of California, Riverside
Dr. Tracy Kahn, University of California, Riverside

Join Citrus Research Board at the Upcoming

Vidalakis to headline CRB-Sponsored Work Shop at Citrus Showcase
     On Thursday, March 5, 2020 California Citrus Mutual (CCM) has invited all industry representatives to the Visalia Convention Center from 7:30 AM to 2:30 PM for their annual Citrus Showcase.
     The Citrus Research Board (CRB) will be sponsoring a workshop starting at 10:00 AM. Dr. Georgios Vidalakis of the University of California, Riverside, will be presenting, "California's collaborative and multilayer approach to ward off the citrus Huanglongbing threat". I
n the presentation, Georgios Vidalakis, Ph.D., will discuss the preventive, concurrent and multi-layered anti-HLB approaches developed and implemented through collaborative efforts of the industry, scientists and governmental agencies that has kept HLB out of commercial citrus. Dr. Vidalakis will also focus on new varieties being processed by the Citrus Clonal Protection Program (CCPP) and plans for their release and evaluation under California growing conditions. 
     Also, during the trade show, make sure to stop by the CRB booth and check-out this year’s citrus variety display presented by UC experts Dr. Tracy Kahn and Dr. Rock Christiano. 
We look forward to seeing you at Showcase!
Continuing Education (CE) Units
1-hour of "Other" continuing education units is pending approval from the
California Department of Pesticide Regulation for license categories
PCA, QAL, QAC and Private Applicator. 

ACP/HLB Updates from CDFA
Proposed Update of Quarantine Zone Boundaries -
San Bernardino and Riverside Counties

The following ACP Quarantine Zone has changed:
  • San Bernardino and Riverside Counties - Colton Area | Zone 6

     Effective January 28, 2020, the Department is expanding the current Zone 6 ACP Quarantine Boundary to mirror the recent expansion of the HLB quarantine area. CLICK HERE to view the maps of the proposed boundary can be found at:

     Regulated articles and conditions for intrastate movement under the quarantine can be found at Title 3 California Code of Regulations (CCR) section 3435.

Process to Appeal the Proposed Zone Change

     The appeal must be submitted to the Department in writing and supported by clear and convincing evidence. The appeal must be filed no later than ten (10) working days from the date of this notification. During the pending of the appeal, the designated Quarantine Boundary under appeal shall remain in effect.

For questions regarding the regulations or map, please email Kiana Dao at ( Leticia Padilla ( or Keith Okasaki ( or call 916.654.0312.

Source: California Department of Food and Agriculture (CDFA) and Citrus Pest & Disease Prevention Program (CPDPP) Citrus Insider
Introducing the New 
USDA Citrus Federal Quarantine Webmap

     Members of the California citrus industry are invited to explore a new resource of information about current USDA Federal quarantines established for protection against invasive pests and diseases that threaten our livelihoods.  Click (here) to view the interactive USDA Citrus Federal Quarantine Webmap.
     Quarantine boundaries are added to and updated as they are published in the Federal Code of Regulations (CFR).*  There are many options that allow map users to pan around, zoom in and out, turn layers on and off, change background basemap (think aerial imagery), custom markup, and access official Federal quarantine documents.
*Note there may be some delay between the state issuing a quarantine and its publication in the CFR.

For more information or assistance with the map you can contact the
map creator Andy Cagle at
Source: Rick Dunn, Citrus Research Board
APHIS Launches Updated Citrus Diseases Website

     USDA’s Animal and Plant Health Inspection Service’s (APHIS) new Citrus website delivers a comprehensive, single resource for stakeholders and the public. Now users can quickly find information about citrus pests and diseases, explore interactive quarantine maps, view the latest regulations by pest or State, and report signs of citrus pests and disease—all in one place.
For more information, email:
Source: USDA Animal and Plant Health Inspection Service 01/22/2020 
CRB Supports Scientific Student Team at the
International Genetically
Engineered Machine (iGEM) Competition

     Twenty-nine high school students of the Biotech Without Borders team were recently granted funding from the Citrus Research Board (CRB) to work in teams all summer in the lab and compete in the International Genetically Engineered Machine (iGEM) Competition. At the iGEM Giant Jamboree, fourteen students traveled to Boston to represent the team and not only presented their work, but also met and networked with fellow students from over 300 worldwide teams. 
     The project, which the students worked on in the lab all summer, centered around huanglongbing (HLB) disease in citrus (citrus greening disease). Students attempted to reduce the spread of the disease by targeting the insect that spreads it, the Asian citrus psyllid.
Photo Caption: iGEM students standing in front of the team banner at the Jamboree, which was held at the Hynes Convention Center in Boston from October 31st through November 4th, 2019.
Source: Recap from Dr. Ellen Jorgensen
Citrus Production Course for New Growers
     University of California Cooperative Extension will be offering an 8-week spring course titled, "Citrus Production Course for New Growers", starting March 17, 2020. This course will take place every Tuesday from 9:30 - 11:30 AM. The total cost of this 8-week course is $325.00 per person.

Cost includes the following class materials:
  • UC ANR Citrus Production Manual - Second Edition (retail at $75.00)
  • UC ANR Integrated Pest Management for Citrus - Third Edition (retail at $40.00)
  • UC IPM Weed Pest Identification and Monitoring Cards (retail at $25.00)
For more information about the course or to register, please contact
Sonia Rios at or (951)683-6491 ext. 224. 
Source: University of California Cooperative Extension (UCCE) - Sonia Rios 
Upcoming UC Ag Experts Webinars
Pesticide Resistance Management of Citrus Pests
Wednesday, February 19, 2020 | 3:00 - 4:00 PM

Dr. Elizabeth Grafton-Cardwell will talk about how insects develop resistance (including examples of resistance in citrus thrips, California red scale and citricola scale), pesticide use tactics to avoid resistance, potential for resistance in Asian citrus psyllid, and best practices for citrus pest management. Approval of one hour of DPR continuing education unit is pending.

Approval of one hour of DPR continuing education unit is pending. 

Upcoming topics:
Use of Plant Growth Regulators in Avocado (March 2020)
Citricola Scale (April 2020)
Invasive Shot Hole Borers in Avocado (May 2020)
Vertebrate pests (June 2020)
Ants in citrus (July 2020)

To register for the webinars, please CLICK HERE
Please register in advance for the webinars.

CLICK HERE for recordings of the past webinars or visit the UC IPM YouTube channel.
CE hours are NOT available for recorded webinars.
Source: UC Ag Experts Talk 
UCCE Healthy Soils Program Workshops Announced
     The University of California Cooperative Extension (UCCE) Kern and Tulare Counties have announced two upcoming workshops to assist California farmers and ranchers interested in applying to the 2020 Healthy Soils Program sponsored by the California Department of Food and Agriculture (CDFA). The Healthy Soils Program give grants up to $100,000 to California farmers and ranchers to incorporate conservation agriculture techniques that improve your soil health and sequester carbon. The CDFA wants farmers and ranchers to do most of these practices for three years or to have finished plantings within three years. Applications will start being accepted in early February 2020 and on a rolling basis for four months or until funds run out.
UCCE Kern County Workshop 
February 13, 2020 | 9:00 - 11:00 AM
1031 S. Mt. Vernon Avenue, Bakersfield, CA 93307 
CLICK HERE to Register

UCCE Tulare County Workshop 
February 14, 2020 | 9:00 - 11:00 AM
4437-B S. Laspina Street, Tulare, CA 93274
CLICK HERE to Register

Check out the links below for additional information on the Healthy Soils Program:
Source: California Department of Food and Agriculture (CDFA) - Healthy Soils Program Incentives 
WANTED ALIVE: European Earwigs

      University of California, Davis Ph.D. student Hanna Kahl is investigating earwig control in citrus orchards. She is currently in need of a large amount of earwigs for this project. Please help her by letting her know if you have a large population of earwigs in your fields of mature citrus trees and/or wraps.
Please contact Hanna Kahl by
email at
Source: University of California, Davis Ph.D. Student, Hanna Kahl
Check out the Winter 2020 edition of 

Citrograph Magazine

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