RESEARCH YIELDS NEW VARIETIES CRB REVAMPS See Page 12 www.CitrusResearch.org | CitrographHERITAGE Magazine 1LOOK YOUR BEST DEFENSE AGAINST DISEASE FOSPHITE ® Systemic Fungicide for Year-Round Control jhbiotech.com | [email protected] | (805) 650-8933 2 Citrograph Vol. 12, No. 3 | Summer 2021 YOUR BEST DEFENSE AGAINST DISEASE Great Roots. Great Fruits. FOSPHITE ® Systemic Fungicide for Year-Round Control “Fall in love with the process and the results will come!” - Eric Thomas Budwood, seedlings and select varieties are still available for 2021. We’re now taking contract orders, including select BioGold varieties for 2022. Contact Leonard Massey at 661.369.2035 or [email protected]. jhbiotech.com | [email protected] | (805) 650-8933 @wncitrus www.CitrusResearch.orgwncitrus.co | Citrographm | 661.327.9345 Magazine 3 PUBLICATION OFFICE P.O. Box 230 Visalia, CA 93279 P: (559) 738-0246 F: (559) 738-0607 www.citrusresearch.org EDITORIAL STAFF Marcy L. Martin, Executive Editor Ivy Leventhal, Managing Editor 12 Melinda Klein, Ph.D., Science Editor Joey S. Mayorquin, Ph.D., Associate Science Editor Tamara Tollison, Editorial Asssistant Ed Civerolo, Ph.D., Editorial Consultant PUBLISHING AND PRODUCTION Co-Publisher / Creative Director/ Graphic Designer Eric Cribbs www.cribbsproject.com [email protected] (559) 308-6277 ADVERTISING Theresa Machado-Waymire [email protected] 36 52 (209) 761-4444 Advertising, business and production inquiries - call, email or write us at: Cribbsproject 823 N. Tilden St. • Visalia, Calif. 93291 P: (559) 308-6277 • F: (866) 936-4303 [email protected] Editorial inquiries - call, email or write us at: Citrus Research Board P.O. Box 230 • Visalia, CA 93279 P: (559) 738-0246 • F: (559) 738-0607 [email protected] www.citrusresearch.org Citrograph (USPS Number is Pending), the official magazine of the California Citrus Research Board, is published quarterly, in spring, summer, fall and winter, at 217 North Encina Street, Visalia, California 93291. In the United States, a one-year subscription (four issues) is $15; a two-year subscription (eight 56 issues) is $28. In Canada and other foreign countries, a one-year subscription (four issues) is $30; a two-year subscription (eight issues) is $56. E-mail [email protected] to subscribe. Single copies may be purchased at $4 per copy for most issues. Application to mail at periodicals postage prices is pending at Visalia, California and additional mailing offices. Postmaster: On the Cover: The theme of this Send address changes to Citrograph C/O: Citrus Research Board, Post Office Box 230, Visalia, California 93279. Address queries summer’s issue of Citrograph is new regarding subscriptions or renewals to: Citrograph Publishing Office, (559) 738-0246 (U.S. or Canada), or e-mail varieties. Pictured on the cover is [email protected]. Support information for articles published in Citrograph are a bloom from the New Varieties provided directly to Citrograph by the publishing author. Any misuse by publishing author of photos, tables, graphs, figures Collection housed at the University and content are the sole responsibility of the publishing author. Every effort is made to ensure accuracy in articles published by of California, Riverside. The photo Citrograph; however, the publishers assume no responsibility for losses sustained, allegedly resulting from following recommendations in this magazine. Consult your local is courtesy of Mariano Friginal. authorities. The Citrus Research Board has not tested any of the products advertised in this publication, nor has it verified any of the statements made in any of the advertisements. The Board does not warrant, expressly or implicitly, the fitness of any RESEARCH YIELDS product advertised or the suitability of any advice or statements contained herein. NEW Reproduction or reuse of any photos S and/or written material contained within this VARIETIE magazine is prohibited without the expressed written consent of the publisher. CRB REVAMPS See Page 12 www.CitrusResearch.org | CitrographHERITAGE Magazine LOOK 1 4 Citrograph Vol. 12, No. 3 | Summer 2021 InSummer 2021 | VolumeThis 12 • Number 3 The Official PublicationIssue of The Citrus Research Board Citrograph's mission is to inform citrus producers and other industry members of research progress and results that will help ensure the sustainability of California citrus. 10 From the President’s Desk 36 Lemon Returns Marcy L. Martin Tracy L. Kahn, Ph.D., et al. 12 CRB Debuts Revamped 48 Measuring Scion and Rootstock Website and Logo Tolerance to HLB in the Greenhouse Tamara Tollison and Ivy Leventhal Kim D. Bowman, Ph.D., et al. 16 Spike in ACP Detections Kicks 52 Accelerated Citrus Breeding by Outreach into High Gear Genetic Engineering Mark McBroom Sean Cutler, Ph.D., et al. 20 Industry Views 56 Mature Citrus Budwood Tamara Tollison Transformation Technology 64 James G. Thomson, Ph.D., et al. 22 Financial Report Marcy L. Martin 60 Interstate Movement of New and Licensed Citrus Varieties 24 Citrus Research Board Irene Lavagi-Craddock, Ph.D., et al. Nomination Meetings Tamara Tollison 64 Developing Tools for Precise Genetic Engineering of Citrus 26 Meet the New Varieties Yannick Jacob, Ph.D., et al. Committee Mark McBroom 68 A Taste of Citrus History 68 Benjamin Jenkins, Ph.D. 30 CRB-funded Research Projects for FY20-21 Joey S. Mayorquin, Ph.D., and Melinda Klein, Ph.D. www.CitrusResearch.org | Citrograph Magazine 5 THE MISSION OF THE CITRUS RESEARCH BOARD Ensure a sustainable California citrus industry for the benefit of growers by prioritizing, investing in and promoting sound science. CITRUS RESEARCH BOARD MEMBER LIST By District 2020-2021 (Terms Expire September 30) District 1 – Northern California District 2 – Southern California – Coastal MEMBER EXPIRES MEMBER EXPIRES Justin Brown, Chairman 2021 Alan Washburn 2021 Scott Carlisle 2021 Chris Boisseranc 2023 Greg Galloway 2021 John Gless III 2023 John Konda, Vice Chairman 2021 Etienne Rabe 2021 District 3 – California Desert Keith Watkins 2021 Andrew Brown 2022 MEMBER EXPIRES Justin Golding 2022 Mark McBroom, Secretary-Treasurer 2022 Zac Green 2022 Craig Armstrong 2023 Vacant 2022 Henk Griffin 2023 Megan Morreale 2023 Public Member Jason Orlopp 2023 Joe Stewart 2023 MEMBER EXPIRES Ram Uckoo 2023 Melissa Cregan 2021 Citrus Research Board | 217 N. Encina St., Visalia, CA 93291 PO Box 230, Visalia, CA 93279 (559) 738-0246 | FAX (559) 738-0607 [email protected] | www.citrusresearch.org 6 Citrograph Vol. 12, No. 3 | Summer 2021 EFFECTIVE CONTROL, LESS DISEASE, MORE YIELD NEW GENERATION K-PHITE 7LP BRINGS SUPERIOR EFFICACIES TO DISEASE CONTROL FOR CALIFORNIA CITRUS GROWERS PLANT FOOD SYSTEMS, INC.—ZELLWOOD, FL., the nation’s premier acidulator of potassium hydroxide introduces to California a unique chemistry in molecular form and ecacy, K-PHITE 7LP Systemic Fungicide Bactericide. Through the development of “Continuous Flow Reactor Manufacturing”, Plant Food Systems, Inc. brings to the citrus industry viable alternatives to disease control and plant health. A registered pesticide, KPHITE 7LP contains unique patented technology and is the product of groundbreaking molecular research regarding the manufacturing processes and development of co-polymeric phosphite molecules which display specific pathogenic activities not duplicated by other phosphites. University researched, field proven. THE MOST EXTENSIVE EPA, CA. DPR LABELED POTASSIUM PHOSPHITE IN THE INDUSTRY: While the trade is afloat with numerous nutrient labels illegally alleging increases in plant health, K-PHITE 7LP aords citrus growers and PCAs a legal, safe, low cost solution to address multiple citrus diseases. K-PHITE 7LP shows ecacy and is registered for control of the following diseases: Alternaria alternata Phytophthora (soil borne and aerial Anthracnose phases including brown rot) Botryosphaeria dothidea Pseudomonas syringae Fusarium Pythium Hyphoderma sambuci Rhizoctonia Xanthomonas ssp. (including citri) K-PHITE 7LP is a clear, pH neutral, linear polymer potassium phosphite exhibiting molecular stability and pathogenic activities that common materials do not display. K-PHITE 7LP contains no sodium or chlorides for safe and compatible applications without rind stain. RE-NEW can be tank mixed with most pesticides, including fungicidal cop-per (maintain pH >6.2). www.CitrusResearch.org | Citrograph Magazine 7 AUGUST CALENDAR OCTOBER OF EVENTS Citrus Research Board 10(CRB) Meeting. For more information, contact SEPTEMBER the CRB at (559) 738-0246 or visit www.citrusresearch.org California Citrus Conference. For more6 information, contact AUGUST the CRB at (559) 738-0246 or visit www.citrusresearch.org *Date subject to change. Citrus Research Board (CRB) 16Nomination Meetings. For more information, contact the CRB at (559) 738-0246 or NOVEMBER visit www.citrusresearch.org Citrus Pest and Disease Prevention11 Committee (CPDPC) Meeting. For more information, visit www.cdfa.ca.gov/ SEPTEMBER citruscommittee Citrus Pest and Disease 10Prevention Committee (CPDPC) Meeting. For more information, visit www.cdfa.ca.gov/ citruscommittee Citrus Research Board (CRB) 21Annual Meeting. For more information, contact the CRB at (559) 738-0246 or visit www.citrusresearch.org 8 Citrograph Vol. 12, No. 3 | Summer 2021 Because protection requires great precision. Protect against harmful pests while helping safeguard benefi cials. Sivanto® Prime insecticide precisely targets key damaging pests like Asian citrus psyllid, citricola scale