Summer 2019  |  E-Newsletter
Another Successful Year for the CRB and UCCE
Citrus Growers Educational Seminar Series

     California Citrus growers and industry personnel gathered in June for the 2019 Citrus Growers Educational Seminar Series where they were educated by citrus research experts on topics such as barriers and border treatments for ACP and the Citrus Pest and Disease Prevention Committee (CPDPC) Voluntary Action Program. There were also updates from the Citrus Research Board (CRB), California Citrus Mutual (CCM), and research reports on pre-harvest lemon drop in the desert, rootstocks and new varieties, high-density planting, root health, nutrition and ACP.

     Attendees heard regional citrus industry talks by their local farm advisors. Growers, PCAs and Private Applicators also received 1-hour of “Laws and Regulations” credit from the Department of Pesticide Regulation (CDPR) for talks presented by their local ag commissioner’s office. The full-day seminars held from June 25-27, 2019, were located in Palm Desert, Santa Paula and Exeter giving over 400 growers and industry personnel the chance to learn more about current industry topics.  

     New to the program this year was the addition of the CRB Board Nomination Meeting and board member elections prior to seminars in Palm Desert (District 3) and Exeter (District 1). The following elected members are waiting approval from the Secretary of the California Department of Food and Agriculture (CDFA) Karen Ross to hold a seat on the CRB Board: Zac Green, District 1; Dan Dreyer, District 1; Justin Golding, District 1; Andrew Brown, District 1 and Mark McBroom, District 3.

Thank you to all who were able to attend and participate at the
2019 Citrus Growers Educational Seminar Series.
We look forward to seeing you all during next year’s roadshow!

Remembering UCR's Dr. Charlie Coggins
(Remembrance courtesy of the California Citrus Quality Council)
     It is with deep sadness that we learned that Charles W. Coggins, Jr. passed away on Aug 18, 2019 at the age of 88. Coggins served as Chairman of the Board of Directors for the California Citrus Quality Council from November 1992 to January 2008.  In 2003, he was presented with CCQC’s highest honor, the Albert G. Salter Memorial award which recognizes an individual who has made outstanding contributions to and achievements in the citrus industry.

     Coggins was an industry pioneer who recognized the potential advances with plant growth regulators (PGRs), beginning with gibberellic acid (GA) and continuing with programs to retain 2,4-D.  It was said that his research on PGRs has been described as the single most economically beneficial research result of the last century.  He authored more than 100 technical publications and nearly 50 semi-technical publications that have proved to be invaluable tools for citrus growers worldwide.  He was the recipient of numerous awards for his leadership, agricultural excellence and research accomplishments.
     Coggins, Professor Emeritus of Plant Physiology, officially retired from the University of California Riverside in 1994.  During his 37 years at the University, he served as Chairman of the UC Riverside Department of Plant Sciences and helped create the Department of Botany and Plant Sciences.  He also served 15 years as Executive Secretary/Treasurer for the International Society of Citriculture. To help succeeding generations of researchers, Coggins created The Coggins Endowed Scholarship Fund at UCR to provide financial assistance for graduate students in the College of Natural and Agricultural Sciences who demonstrate academic excellence, quality research and benefit to the citrus industry.
     He was born November 17, 1930 in North Carolina.  He was proceeded in death by two sons from cystic fibrosis.  He is survived by his wife Irene of 68 years, a son and four grandchildren. A memorial service is pending.  In lieu of flowers, contributions can be made to support his scholarship at UCR in honor of him, to the Parkinson’s disease foundation or cystic fibrosis charities. Cards can be sent to 819 Alden Road, Redlands, CA 92373.

Victoria Hornbaker Selected as Director of
New Citrus Pest and Disease Prevention Division 

(Message from California Department of Food and Agriculture Secretary Karen Ross, August 21, 2019)
     Secretary Ross shared, "It is my pleasure to announce the selection of Victoria Hornbaker as the Director of the new Citrus Pest and Disease Prevention Division.  Victoria started her career with California Department of Food and Agriculture in 2008 as the Vertebrate Pest Control Program Supervisor in the Integrated Pest Control (IPC) Branch.  She has demonstrated exceptional leadership skills working with many industry funded programs within the IPC branch.  Since 2016, she has served as Branch Chief of IPC, including oversight of the Citrus Pest and Disease Prevention Program (CPDPP).  In 2018, Victoria was appointed as the Interim Director of the State’s Citrus Pest and Disease Prevention Program."

The CRB congratulates Victoria on her on her new position!

USDA-APHIS Leadership Tours California Citrus

     Earlier this month, Citrus Research Board members and staff welcomed to Visalia Dr. Wendy Jin, Executive Director for Science and Technology of the Plant Protection and Quarantine, Animal and Plant Inspection Services, US Department of Agriculture   (USDA-APHIS-PPQ-S&T), Dr. Scott Pfister, USDA-APHIS-PPQ-S&T Otis, Massachusetts Laboratory Director, and Dr. Greg Simmons, from the USDA-APHIS-PPQ-S&T California Station in Salinas. This visit was part of a statewide tour to introduce Dr. Jin to the partnering organizations and collaborators that APHIS works with to fight citrus pests and diseases such as the Asian citrus psyllid (ACP) and huanglongbing (HLB).

     Conversations held at the CRB centered around the trapping and monitoring program for ACP and HLB (developed initially at the CRB), current APHIS-supported research efforts, such as the biocontrol program and early detection efforts, and future potential collaborations. While in Visalia, the group was also able to attend the bimonthly Citrus Pest and Disease Prevention Committee meeting and learned more about the statewide efforts to protect commercial citrus production. While in state, the group also toured research facilities and Local, State and Federal program officials in Salinas, Sacramento, and Riverside – including the CRB BioControl Program based at Mt. Rubidoux. The CRB appreciated the opportunity to welcome Dr. Jin and Dr. Pfister to California and look forward to continued and strengthened collaborations going forward.

Photo Caption
Top Row: Mojtaba Mohammadi, Ph.D., CRB Associate Scientist; Holly Deniston-Sheets,
CRB DATOC Coordinator; Rick Dunn, CRB Data, Information & Management Director;
Greg Simmons, Ph.D., USDA-APHIS-PPQ-S&T; Melinda Klein, Ph.D., CRB Chief Research Scientist;
Joey Mayorquin, Ph.D., CRB Research Associate 
Bottom Row: Scott Pfister, Ph.D., USDA-APHIS-PPQ-S&T Laboratory Director; Franco Bernardi,
CRB President; Wendy Jin, Ph.D., USDA-APHIS-PPQ-S&T Executive Director
CRB Hosts Cal Poly, San Luis Obispo
Faculty for Citrus Tour

     In June the Citrus Research Board (CRB) welcomed California Polytechnic State University, San Luis Obispo (Cal Poly) faculty members to the Central Valley for a tour of two citrus packinghouses and a field harvesting demonstration. The goal of the tour was to introduce Cal Poly faculty to the California citrus industry, CRB collaboration opportunities and identify possible research projects for Cal Poly that range from food safety to engineering.
     CRB Chairman Dan Dreyer and CRB Director of Communications Carolina Evangelo hosted the following Cal Poly faculty on the tour: Amanda Lathrop, Ph.D., Food Science and Nutrition; Karen Cannon, Ph.D., Agricultural Education and Communication; Siroj Pokharel, Ph.D., Animal Science; Mohammad Sadek, Ph.D., Bioresource & Agricultural Engineering and Koushik Saha, Ph.D., Industrial Technology and Packaging.
     The first stop on the tour was a walk-through of the Sun Pacific Lerdo Packinghouse, guided by packinghouse manager, Roger Hill.  Immediately following, the group traveled to Ducor, CA for a field harvesting demonstration led by Sun Pacific’s citrus department harvesting manager, Gus Carranza. The day wrapped-up with a tour at AC Food’s Suntreat Legacy packing and cold storage facility in Dinuba, CA guided by Tom Clark, general manager and Kevin Watson, director of operations.
     The CRB looks forward to collaboration with Cal Poly, San Luis Obispo and would like to extend our thanks to Al Bates, Roger Hill, Tom Clark and Kevin Watson for their generous hospitality and excellent tours of their operations.
Dr. Georgios Vidalakis Named Citrus Research Board
Presidential Researcher for Sustainable
Citrus Clonal Protection

Source: University of California, Riverside, Inside UCR; Author: Jules Bernstein 06/21/2019

     Georgios Vidalakis, a professor and UC extension specialist in UCR’s Microbiology and Plant Pathology Department, has been named Citrus Research Board Presidential Researcher for Sustainable Citrus Clonal Protection. The position will enable Vidalakis, an expert in plant pathology, to continue doing research that improves citrus production and quality in California. 
DATOC Quarterly Report
April - June 2019

     Completed reports are published online at

Sampling Activity and HLB Detections 

     In April 2019, DATOC presented data to the Citrus Pest and Disease Prevention Program (CPDPP) Operations Subcommittee that visualized sampling activity and huanglongbing (HLB) detections. The goal of this presentation was to help inform the program how disease discovery was related to program activities. Sampling effort and CLas detection over time were broken down for each southern CA city in which CLas had been detected. 

Mandarin Boom Means
Citrus Pest Management Must Evolve

Source: Entomology Today; Author: Ed Ricciuti 06/2019

     Since the 1990s, mandarin oranges have become what The New York Times headlined in 2016 as the “Rising Stars of the Fruit Bowl.” In the United States, mandarins are almost all grown in California, supporting a $2 billion industry and accounting for almost half of the nation’s citrus production.
Impacts of Fruit-Feeding Arthropod Pests
On Oranges and Mandarins in California

Source: Journal of Economic Entomology; Author: Bodil N. Cass, Lindsey M. Hack, Elizabeth E. Grafton-Cardwell and Jay A. Rosenheim 2019

     One of the major challenges facing citrus integrated pest management (IPM) in California is the recent, sharp increase in the acreage of mandarins being planted. The current citrus IPM guidelines have been established from years of experiments and experience in oranges, with no specific guidelines for mandarins. In the absence of research into key arthropod pest effects in mandarins, the assumption that the pest management practices for oranges appropriately transfer for optimal production in mandarins has not been tested.
Proposed Expansion of the Huanglongbing (HLB)
Quarantine Boundary -
 Orange County

     Effective August 2, 2019, the Department is expanding the Orange County Quarantine Boundary. CLICK HERE to view the map of the proposed boundary. 

Regulated articles and conditions for intrastate movement under the quarantine can be found at Title 3 California Code of Regulations (CCR) section 3439. Pursuant to Title 3 CCR section 3439 any interested party or local entity may appeal a quarantine area designation.

Process to Appeal the Proposed Expanded Boundary

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.

Mail Appeals to:
CDFA - Pest Exclusion
1220 N Street, Room 325
Sacramento, CA 95814

Electronic Notification of Boundary Changes

California Code of Regulation allows interested parties to be notified of quarantine area boundary changes, as well as the opportunity to submit quarantine boundary appeals. If interested in receiving notifications, please sign up for regulatory updates through the email notification ListServ at:

For questions regarding the regulations or map, please email
KarLee Wyatt ( or
Dayna Napolillo ( or call 916.654.0312.

CPDPP Video's Highlight:
What If California Citrus

     Citrus Pest & Disease Prevention Program (CPDPP) recently released a new video about how you can help with the fight against HLB in California. Make sure you click on the link below to watch the video!

     Also, check out to learn more about inspecting your backyard citrus and how to properly report any pest and disease symptoms that you may find.

Open Period Dates for Submitting
FY 2020 Plant Protection Act (PPA) Section 7721 Project 

     The Fiscal Year (FY) 2020 Plant Protection Act (PPA) Section 7721 Program begins July 15, 2019.  The PPA 7721 Cross-functional Workgroup will alert stakeholders on important dates and provide ongoing guidance and information through the APHIS Stakeholder Registry notification system.  The open period for submitting suggestions will last six weeks, from July 15 through August 23, 2019. The Program will host several help session webinars on how to submit a suggestion.

     More information about the FY 2020 open period will be posted soon on the PPA 7721 website.  Question should be sent to:

Upcoming UC Ag Expert Webinars

California Red Scale
Wednesday, September 25, 2019 | 3:00 - 4:00 PM

Dr. Grafton-Cardwell will discuss biology, biological control, temperature effects, damage, monitoring, chemical control, and resistance issues for California red scale.
More information to come.

1-hour of "Other" of Continuing Education (CE) Units by California DPR and
1-hour of Certified Crop Adviser (CCA) IPM are pending.


Upcoming topics:
Avocado Diseases II by Dr. Ben Faber (October 23, 2019)
Spray Safe (Laws & Regs) by Lisa Blecker (November 20, 2019)
Use of Plant Growth Regulators in Avocado (December - TBD)
Avocado thrips (January 22. 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.
Great Job Opportunity in Imperial County 

New Job Opening for
Imperial County Citrus Pest Control District

     Imperial County Citrus Pest Control District #1 (ICCPCD#1) is currently looking for an individual for the General Manager position. Applicants interested in the position must submit their applications before September 1, 2019. 
Click on the link below to learn more about the position and
the qualifications needed to apply.
CCQC Update on Export Requirements for
New Zealand, Australia and Korea

Australia – At the latest bilateral, Australian regulators told APHIS that they will no longer accept Cropfume as a treatment for oranges and mandarins shipped to Australia for control of bean thrips.  The only option under the protocol will be pre-shipment treatments with phosphine.  Technically speaking, methyl bromide is an approved pre-shipment treatment, but the treatment damages the fruit.
New Zealand – New Zealand regulatory authorities suggested at the last bilateral that all citrus shipments be fumigated with methyl bromide before export to New Zealand to control spotted wing drosophila (SWD), which was detected in a container on arrival last season.  APHIS stated that methyl bromide is not a viable option because it damages the fruit.  New Zealand authorities asked APHIS to provide options to mitigate SWD and bean thrips.
California Citrus Quality Council (CCQC) and Sunkist are collaborating with APHIS to identify options that will not require fumigation.  However, packinghouses are advised to prepare for the possibility that phosphine treatments would be required.  We will report back to the industry when more is known about the outcome of the negotiations.
Korea – Nothing has changed for the Fuller rose beetle (FRB) or Septoria protocols.  FRB still requires two pesticide applications, skirt pruning and herbicide treatments.  Copper applications will be required and Septoria lab verification is recommended.

Please contact Jim Cranney by telephone at (530) 885-1894 or via
e-mail at if you have questions or need additional information.



CCQC Citrus Pre-season Export Meeting

Thursday, October 3, 2019 | Visalia Convention Center
2020 International Citrus Congress Announcement
"Reframing Citriculture: Better Connections for Future"
     The International Society of Citriculture (ISC) and the Organizing Committee of the 14th International Citrus Congress on November 8-13, 2020 in Mersin, Turkey. Abstract submission deadline will be June 1, 2020. Make sure you sign up before the early-bird registration closes on September 15, 2020. Also, final pre-registration deadline will be September 15, 2020 and late registration will be available until November 1, 2020. The theme for the 2020 International Citrus Congress will be "Reframing Citriculture: Better Connections for Future".
Click on the link below to view the official announcement. 
Save the Date!

The Lindcove Citrus Gala

     Enjoy a cocktail hour and dinner while we raise money to sweeten the future of citrus at Lindcove. Visit for more information about Sweetening the Future of Citrus at Lindcove and The Lindcove Citrus Gala.
     As we face serious challenges to the future of the California citrus industry, such as the devastating disease huanglongbing, water shortages and labor shortages, we feel now is the time to invest in our programs. We want to ensure our work continues for many years to come—and we’re sure you do to. We know we can do more and we need your help.

This event is co-sponsored by the Citrus Research Board and
University of California Agriculture and Natural Resources.

Check out the Summer 2019 edition of 

Citrograph Magazine

CLICK HERE to see the NEW Citrograph Index

that is available to download on the CRB website.


Industry Partners

CCM  |  CPDPP  |  CCPP  |  CCQC  |  DATOC  |  fruitmentor  |  USDA-MAC

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