California Department of Food and Agricu

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Fall 2019 newsletter

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Summer 2019 newsletter

Spring 2019

Spring 2019 newsletter

Winter 2019

Winter 2019 newsletter

Newsletter Archive

To request a back issue of newsletters from 2018 and earlier, please contact Brown Miller Communications by phone at (925) 370-9777 or send a request via email.

 

2018

  • Fall Articles

    • New Field Trials Planted in Northern California

    • Update on Traditional Breeding of PD Resistance into Winegrapes

    • Functional Characterization of pilG, a Key Virulence Gene, and Evaluation of the Effects of Anti-Virulence Inhibitors on the Virulence of Xylella fastidiosa

    • Resistance to Grapevine Fanleaf Virus in Rootstocks

    • Timing of Field Transmission of Grapevine Red Blotch Virus

    • 2018 Pierce's Disease Research Symposium

  • Summer Articles

    • PD/GWSS Board Funds 15 Research Projects

    • A Few Past and Current Research Projects

    • Mapping Pierce's Disease and Vector Populations in the Southern San Joaquin Valley and Developing a Dynamic Model to Assess Management Strategies

    • Quantifying Vine Mealybug Spatio-Temporal Dynamics: Assessing Invasion Risk to Refine Management Strategies

    • A Study on the Impact of Individual and Mixed Leafroll Infections on the Metabolism of Ripening Wingrape Berries

    • Cooperative Nursery Program is Key to Preventing the Spread of GWSS

  • Spring Articles​

    • Foundation Plant Services Stepping Up Testing After Red Blotch Find

    • CDFA Statewide Survey and Detection Gears Up

    • Greenhouse Evaluation of Grapevine Microbial Endophytes and Fungal Natural Products for Control of PD

    • Insecticide Resistance in the Glassy-winged Sharpshooter: Using Historical Use Patterns to Inform Future Management Strategies

    • Assessing Effects of Seasonality on the Epidemiology of PD in the Southern San Joaquin Valley

    • New Officers for the PD/GWSS Board

  • Winter Articles

    • GWSS Area-Wide Program Update: Kern and Tulare Counties

    • Santa Clara County Free of GWSS for the First Time in 17 Years

    • Evaluating Potential Shifts in Pierce’s Disease Epidemiology

    • A Study on the Impact of Individual and Mixed Leafroll Infections on the Metabolism of Ripening Wingrape Berries

    • Quantifying Vine Mealybug Spatio-Temporal Dynamics: Assessing Invasion Risk to Refine Management Strategies

    • 2017 Pierce's Disease Research Progress Reports Available Online
       

2017

  • Fall Articles

    • Isolated GWSS Finds Show Importance of Ongoing Vigilance

    • New Videos Added to the PD/GWSS Board Channel

    • High Throughput Live Cell Screen of Small Molecules Targeting the ToIC Efflux Pump of Xylella fastidiosa

    • Timing of Field Transmission of Grapevine Red Blotch-Associated Virus

    • Molecular Breeding Support for the Development of Pierce's Disease- Resistant Winegrapes

    • Governor Brown Signs State Budget With $5 Million Designated for PD Control Program

  • Summer Articles

    • UC Davis Announces Pre-Release of Five New PD-Resistant Winegrape Cultivars

    • Researchers Gather to Find Solutions To Grapevine Viruses

    • Monitoring for Insecticide Resistance in the GWSS in California

    • The Riverside County GWSS Program in the Temecula Valley

    • Biology and Spread of Grapevine Red Blotch-Associated Virus

    • Proper Training Key to Success of the ATP Program

  • Spring Articles

    • Modified Rootstocks Could Help Prevent PD

    • The Key to Stopping New GWSS Infestations in Uninfested Areas

    • Monitoring Glassy-Winged Sharpshooters and Pierce's Disease In Kern County, California

    • Searching for Potential Vectors of Grapevine Red Blotch-Associated Virus

    • Development of a Biological Control for Pierce's Disease

    • CDFA PD Control Program Nursery Stats for 2016

  • Winter Articles​

    • Determining What 'Certified Plant Material' Means to Growers

    • New Logo for the PD/GWSS Board

    • Evaluation of Commercial Ant Baits as a Component of an Integrated Pest Management Program for Vine Mealybug

    • Assessing Pierce's Disease Spread in Grape Lines With Novel Defensive Traits

    • Management of Insecticide Resistance in Glassy-Winged Sharpshooter Populations Using Toxicological, Biochemical and Genomic Tools

    • From Phages to Mealybugs - There Was Much to Discuss During the 2016 PD Research Symposium 

2016

  • Fall Articles

    • North Coast PD Study Underway

    • EGVM Eradicated from California

    • Evaluation of Natural Products Isolated from Grapevine Fungal Endophytes for Control of PD

    • Brown Marmorated Stink Bug Risk and Impacts in Western Vineyards

    • Evaluation of Commercial Ant Baits as a Component of an Integrated Pest Management Program for Vine Mealybug

    • 2016 Pierce's Disease Research Symposium to Be Held in San Diego

  • Summer Articles

    • PD/GWSS Board Gets a Taste of Wine Made From PD-Resistant Grapevines

    • PD Board Funding for PD and Other Research Projects

    • Transgenic Rootstock-Mediated Protection of Grapevine Scions by Single and Stacked DNA Constructs

    • Continued Field Evaluation of Diffusible Signal Factor Inducing Grape for Control of Pierce's Disease

    • Selective Disruption of Glassy-winged Sharpshooter Maturation and Reproduction by RNA Interference

    • State Bill Introduced to Boost Funding for PD Control Program

  • Spring Articles

    • Recently Identified Enzyme May Hold New Insight into Pierce's Disease Grapevine Damage

    • GWSS Eggs Found on Nursery Shipments in Napa and Sonoma

    • Substrate-Borne Vibrational Signals in Intraspecific Communication of the Glassy-winged Sharpshooter

    • Field Evaluation of Grape Plants Expression Potential Protective DNA Sequences Effective Against Pierce's Disease

    • Biological Control of Pierce's Disease of Grapevines in the UC Riverside Vineyard With a Benign Strain of Xylella fastidiosa

    • Nursery Rejections Down in 2015 - Plant Inspections are Working

  • Winter Articles

    • What Winegrape Growers Should Know About Red Blotch

    • PD-Resistant Vines Becoming a First Line of Defense Against PD

    • The Riverside County Glassy-winged Sharpshooter Program in the Temecula Valley

    • Whole Genome Sequence Analyses of Xylella fastidiosa Pierce's Disease Strains From Different Geographical Regions

    • Characterization of Different California Strains of Xylella fastidiosa by Fatty Acid Methyl Ester Analysis


2015

  • Fall Articles

    • European Grapevine Moth Update

    • PD/GWSS Board Travels to Bakersfield - Concerned About Increases in PD

    • Blocking Xylella fastidiosa Transmission

    • Map-Based Identification and Positional Cloning of Xylella fastidiosa Resistant Genes from Known Souces of Pierce's Disease Resistance in Grapes

    • Management of Insecticide Resistance in Glassy-Winged Sharpshooter Populations Using Toxicological, Biochemical and Genomic Tools

    • Researchers Determined to Discover Why Growers Are Seeing More PD

  • Summer Articles

    • Pierce's Disease - The Big Picture

    • PD/GWSS Board Recommends Funding Eleven Research Projects

    • Vector Inoculation of Xylella fastidiosa: New Evidence Suggests Sharpshooters Can Be "Flying Syringes"

    • Defining the Role of Secreted Virulence Proteins LesA and PrtA in the Pathobiology of Xylella and in the Development of Pierce's Disease

    • Elucidating the Process of Cell-Cell Communication in Xylella fastidiosa to Achieve Pierce's Disease Control by Pathogen Confusion

    • It's Official - PD/GWSS Referendum Passes

  • Spring Articles

    • Breaking the GWSS Sound Barrier

    • Tasting the Future

    • Identification of a New Virulence Factor Required for Pierce's Disease and Its Utility in Development of a Biological Control

    • Role of Cold Shock Proteins in Xylella fastidiosa Virulence

    • Transgenic Rootstock-Mediated Protection of Grapevine Scions by Dual Stacked DNA Constructs

    • Is the PD/GWSS Referendum Over Yet?

  • Winter Articles

    • Is There an Insect Vector for Red Blotch?

    • Researchers Present Their Work at the PD Research Symposium

    • Substrate-Borne Vibrational Signals in Intraspecific Communication of the Glassy-Winged Sharpshooter

    • Elucidating the Process of Cell-to-Cell Communication in Xylella fastidiosa to Achieve Pierce's Disease Control by Pathogen Confusion

    • Monitoring for Insecticide Resistance in the Glassy-Winged Sharpshooter in California

    • The Vote Is Coming! The Vote Is Coming!
       

2014

  • Fall Articles

    • Governor Signs PD/GWSS Bill

    • Long-Time PD Researcher Bruce Kirkpatrick Retires

    • Scientists Decipher Stink Bug Aggregation Pheromone

    • Anterior Foregut Microbiota of the GWSS Explored Using Deep 16S rRNA Gene Sequencing From Individual Insects

    • Identification of a New Virulence Factor Required for Pierce's Disease and Its Utility in Development of a Biological Control

    • Characterization of Xf Genes Required for Pathogenicity

    • Tastings of Wine Made From PD-Resistant Winegrapes

  • Summer Articles

    • PD/GWSS Board Designates Two Pests and One Disease as Threats to California's Vineyards

    • New and Continuing Research Projects Get Funded

    • Some Facts on PD/GWSS Board's Newly Designated Disease & Pests

    • The Riverside County Glassy-winged Sharpshooter Program in the Temecula Valley

    • Rootstock Effects on the Progression of PD Symptom Development and Possible Mechanisms

    • Optimizing Grape Rootstock Production and Export of Inhibitors of Xf Polygalacturonase Activity

    • Inspectors Find GWSS Eggs in Nursery Shipments

  • Spring Articles

    • Update on Field Trials of PD-Resistant Grapevines

    • Pierce's Disease Legislation Introduced

    • Board Hires Researcher Liaison to Advise on Research Activities

    • Molecular and Functional Characterization of the Putative Xylella fastidiosa Resistance Gene(s) From Vitis arizonica

    • Greenhouse Evaluation of Grapevine Fungal Endophytes and Fungal Natural Products Antagonistic to Xylella fastidiosa for Control of PD

    • Suitability of Fertilized and Unfertilized Eggs of the Glassy-winged Sharpshooter for the Egg Parasitoid Gonatocerus morrilli

    • Keeping GWSS Out of Your Vineyards

  • Winter Articles

    • Research Breakthroughs Reported During 2013 PD Research Symposium

    • The Eradication of GWSS in SLO County

    • Virulent Phages of Xylella fastidiosa: Phophylactic and Therapeutic Evaluation

    • Blocking Xylella fastidiosa Transmission

    • Continued Field Evaluation of Grapevines Producing Diffusible Signal Factor for Control of PD

    • Getting Solutions to PD from the Lab to Growers​
       

2013

  • Fall Articles

    • PD-Resistant Winegrapes Get Tested in the Eye of the Storm

    • GWSS Area-Wide Treatment Program Update: Kern and Tulare Counties

    • Final Report - Enhancing Control of Pierce's Disease by Augmenting Pathogen Signal Molecules

    • Final Report - Vouchering Specimens of Egg Parasitoids of the GWSS Collected by the CDFA Pierce's Disease Biological Control Program in California and Texas A&M in Texas

    • Biological Control of Pierce's Disease of Grapevine with EB92-1, a Benign Strain of Xylella fastidiosa

    • Vineyard Tour and Wine Tasting with Dr. Andy Walker

  • Summer Articles

    • Out of Nowhere Comes Red Blotch

    • CDFA's PD Control Program Meeting the Changes and Challenges

    • New Video - Fighting the GWSS Infestation in Fresno

    • Development of a Grape Tissue Culture and Transformation Platform for the California Grape Research Community

    • UPDATE - Field Evaluation of Grafted Grapevine Lines Expressing Pear Polygalacturonase-Inhibiting Proteins

    • Identification and Utilization of Cold Temperature Induced Grapevine Metabolites to Manage Pierce's Disease

    • GWSS Nursery Subcommittee Helps Keep Industry Up-to-Date

  • Spring Articles

    • Designating a Winegrape Pest or Disease Is a Deliberative Process

    • Fighting the GWSS Infestation in the City of Fresno

    • New Research Video Online

    • The Oxidative Stress Response: Identifying Proteins Critical for Xylella fastidiosa Survival in Grapevines

    • Genetic Mapping of Xylella Fastidiosa Resistant Genes in Grape Germplasm from the Southern United States

    • Field Evaluation of Grape Plants Expressing PR1 and UT456 Transgenic DNA Sequences for Protection Against Pierce's Disease

    • 2012 Nursery Program Review

  • Winter Articles

    • RSAP Helps to Guide Board's Research

    • EGVM Quarantine Area Reduced

    • GWSS Biological Control Update

    • Greenhouse Evaluation of Grapevine Fungal Endophytes and Fungal Natural Products Antagonistic to Xylella fastidiosa for Control of PD

    • Development and Use of a Recombinant Virus for Controlling GWSS

    • Blocking Xylella fastidiosa Transmission

    • Virginia Creeper Leafhopper is Latest Vineyard Pest to Invade California Vineyards