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Pacific Southwest Research Station

Pacific Southwest
Research Station

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Publications and Products

General Technical Report

Title: Proceedings of the sudden oak death second science symposium: the state of our knowledge

Author: Frankel, Susan J.; Shea, Patrick J.; Haverty, Michael I., tech. coord.

Date: 2006

Source: Gen. Tech. Rep. PSW-GTR-196. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station; 571 p.

Station ID: GTR-PSW-196

Description: The Sudden Oak Death Second Science Symposium provided a forum for current research on sudden oak death, caused by the exotic, quarantine pathogen, Phytophthora ramorum. Ninety papers and forty-six posters on the following sudden oak death/P. ramorum topics are included: biology, genetics, nursery and wildland management, monitoring, ecology, and diagnostics. Several papers on P. kernoviae and other forest Phytophthora species are also presented.

Key Words: sudden oak death, Phytophthora ramorum, invasive species, tanoak, coast live oak

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Front Matter 436 KB

Keynote Address and Overview

Keynote 28 KB
Representative Lynn Woolsey, California 6th Congressional District
Epidemiology of Phytophthora ramorum in Oregon 20 KB
E.M. Hansen, A Kanaskie, E.M. Goheen, N. Osterbauer, and W. Sutton
Sudden Oak Death: Recent Developments on Trees in Europe 28 KB
Clive Brasier, Sandra Denman, Joan Webber, and Anna Brown

Phytophthora ramorum in Nurseries

Biology I

Phytophthora Species Associated With Forest Soils in Central and Eastern U.S. Oak Ecosystems 1.3 MB
Y. Balci, S. Balci, J. Eggers, W.L. Macdonald, K.W. Gottschalk, J. Juzwik, and R. Long
The Effects for Girdling on the Ectomycorrhizal Fungal Community Associated With Tanok (Lithocarpus densiflorus) 16 KB
Sarah Bergemann, Nicholas Kordesch, Matteo Garbelotto, and Timothy Metz
Phytophthora Species From Oak and Tanoak Forests in California and Oregon 1 MB Everett Hansen, David Rizzo, and Matteo Garbelotto
Isolation and Characterization of Phytotoxins Secreted by Phytophthora ramorum 16 KB
Daniel K. Manter, Rick G. Kelsey, and Joseph J. Karchesy
Susceptibility of Conifer Shoots to Infection by Phytophthora ramorum 16 KB
G.A. Chastagner, E.M. Hansen, K.L. Riley, and W. Sutton
Susceptibility Levels of Rhododendron Species and Hybrids to Phytophthora ramorum 28 KB
Isabelle De Dobbelaere, Kurt Heungens, and Martine Maes
Variation in Susceptibility of Umbellularia californica (Bay Laurel) to Phytophthora ramorum 548 KB
Matthew Meshriy, Daniel Hüberli, Tamar Harnik, Lori Miles, Keefe Reuther, and Matteo Garbelottor


Genetic Hitch-Hiking Extends the Range of Coast Live Oak 24 KB
Richard S. Dodd, Zara Afzal-Rafii, and Wasima Mayer
Seasonal Trends in Response to Inoculation of Coast Live Oak With Phytophthora ramorum 28 KB
Richard S. Dodd, Daniel Hüberli, Tamar Y. Harnik, Brenda O'Dell, and Matteo Garbelott
Potential for Sexual Reproduction of Phytophthora ramorum in Washington State Nurseries 56 KB
Matteo Garbelotto, Kelly Ivors, Daniel Hüberli, Peter Bonants, and Art Wagner
Phenotypic Variation Among Phytophthora ramorum Isolates From California and Oregon 56 KB
Daniel Hüberli, Tamar Harnik, Mathew Meshriy, Lori Miles, and Matteo Garbelotto
Molecular Identification and Detection of Phytophthora ramorum 32 KB
Peter Bonants, Els Verstappen, Ineke de Vries, Katarzyna Wiejacha, and Kelly Ivors
Molecular Detection of Phytophthora ramorum by Real-Time PCR Using Taqman, SYBR® Green and Molecular Beacons With Three Gene 24 KB
G.J. Bilodeau, C.A. Lévesque, A.W.A.M. de Cock, C. Duchaine, G. Kristjansson, and R.C. Hamelin
Application of Rapid Onsite PCR (Taq Man®) for Phytophthora ramorum Under U.S. Conditions28 KB
Kelvin Hughes, Jenny Tomlinson, Neil Boonham, Kelly Ivors, Matteo Garbelotto, and Ian Barker
Genome Sequence of Phytophthora ramorum : Implications for Management 32 KB
Brett Tyler, Sucheta Tripathy, Nik Grunwald, Kurt Lamour, Kelly Ivors, Matteo Garbelotto, Daniel Rokhsar, Nik Putnam, Igor Grigoriev, and Jeffrey Boore

Biology II

Summer Survival of Phytophthora ramorum in Forest Soils 44 KB
Elizabeth J. Fichtner, Shannon C. Lynch, and David M. Rizzo
Monitoring of Natural Outbreaks of Phytophthora ramorum in the United Kingdom 24 KB
Judith Turner, Alex Appiah, Philip Jennings, Gilli Humphries, Debbie Liddell, Sam McDonough, Jackie Stonehouse, David Lockley, and Stephen Eales
Residual Tree Response to Tanoak Decline in California 20 KB
Kristen M. Waring and Kevin L. O'Hara


Fungicide Control of Phytophthora ramorum on Rhododendron 136 KB
Kurt Heungens, Isabelle De Dobbelaere, and Martine Maes
Effects of Phosphonate Treatments on Sudden Oak Death in Tanoak and Shreve's Oak 16 KB
Doug Schmidt, Matteo Garbelotto, Dave Chambers, and Steve Tjosvold
Chemical Control of Phytophthora ramorum Causing Foliar Disease in Hardy Nursery Stock in the United Kingdom 20 KB
Judith Turner, Philip Jennings, Sam McDonough, Debbie Liddell, and Jackie Stonehouse
Phytophthora ramorum Infection in Coast Live Oaks and Shreve's Oaks Treated With Insecticide to Prevent Beetle Colonization 64 KB
Brice A. McPherson, David L. Wood, David M. Rizzo, Pavel Svihra, Steve Tjosvold, Andrew J. Storer, and Richard B. Standiford
Effects of Sanitary Measures on the Survival of Phytophthora ramorum in Soil 52 KB
M.M. Aveskamp, P.J.M. van Baal, and J. de Gruyter

Introduction of Filtration Systems in Container Nurseries for Nonchemical Elimination of Phytophthora spp. From Irrigation Water 60 KB
Thorsten Ufer, Heinrich Beltz, Thomas Brand, Katrin Kaminski, Ralf Lüttmann, Martin Posner, Stefan Wagner, Sabine Werres, and Hans-Peter Wessels
Phytophthora ramorum Disease Transmission From Artificially Infested Potting Media 28 KB
Jennifer L. Parke, Melody L. Roth, Carrie Lewis, and Caroline J. Choquette
Pathways of Infection for Phytophthora ramorum in Rhododendron 72 KB
Carrie D. Lewis and Jennifer L. Parke

Ecology and Monitoring

Potential Effects of Sudden Oak Death on Birds in Coastal Oak Woodlands 1.2 MB
Donald E. Winslow and William D. Tietje
Climate-Host Mapping of Phytophthora ramorum, Causal Agent of Sudden Oak Death 1.7 MB
Glenn Fowler, Roger Magarey, and Manuel Colunga
Aerial and Ground Surveys for Mapping the Distribution of Phytophthora ramorum in California 516 KB
Jeffrey A. Mai, Walter Mark, Lisa Fischer, and Amy Jirka
Early Detection Monitoring of Phytophthora ramorum in High-Risk Forests of California 96 KB
Ross Meentemeyer, Elizabeth Lotz, David M. Rizzo, Kelly Buja, and Walter Mark
Phytophthora ramorum Experience and Approach in the Netherlands 32 KB
M.H.C.G. Steeghs and J. de Gruyter
Sudden Oak Death Disease Progression in Oaks and Tanoaks 100 KB
Brice A. McPherson, Sylvia R. Mori, David L. Wood, Andrew J. Storer, Pavel Svihra, N. Maggi Kelly, and Richard B. Standiford
Surveying and Monitoring Sudden Oak Death in Southwest Oregon Forests 40 KB
Ellen Michaels Goheen, Alan Kanaskie, Mike McWilliams, Everett Hansen, Wendy Sutton, and Nancy Osterbauer

Management II

The Response of Saprotrophic Beetles to Coast Live Oaks Infected With Phytophthora ramorum 48 K
Brice A. McPherson, Nadir Erbilgin, David L. Wood, Pavel Svihra, Andrew J. Storer, and Richard B. Standiford
Chemical Ecology of Sudden Oak Death/Ambrosia Beetle Interactions 64 KB
Frances S. Ockels, Pierluigi Bonello, Brice McPherson, and David L. Wood
Relationships Between Phytophthora ramorum Canker (Sudden Oak Death) and Failure Potential in Coast Live Oak 320 KB
Tedmund J. Swiecki, Elizabeth Bernhardt, Christiana Drake, and Laurence R. Costello
The Current Situation With Phytophthora ramorum in England and Wales 32 KB
David Slawson, Lynne Bennett, Nicola Parry, and Charles Lane
Epidemiology of Phytophthora ramorum, Infecting Rhododendrons Under Simulated Nursery Conditions 84 KB
S.A. Tjosvold, D.L. Chambers, S. Koike, and E. Fichtner
Understanding the Disposal and Utilization Options for Phytophthora ramorum Infested Wood 156 KB
John Shelly, Ramnik Singh, Christine Langford, and Tad Mason
Eradication of Phytophthora ramorum in Oregon Forests–Status After 3 Years 20 KB
Alan Kanaskie, Nancy Osterbauer, Michael McWilliams, Ellen Goheen, Everett Hansen, and Wendy Sutton


Trace Forward, Perimeter, and National Nursery Surveys for Phytophthora ramorum in Texas 20 KB
D.N. Appel, T. Kurdyla, R.F. Billings, K.S. Camilli, and A. Purdy
Small Mammal and Herpetofaunal Abundancy and Diversity Along a Gradient of Sudden Oak Death Infection 16 KB
Kyle Apigian, Letty Brown, Jenny Loda, Sarah Toas, and Barbara Allen-Diaz
Pacific Yew as a Host for Phytophthora ramorum in California Forests 16 KB
J.C. Bienapfl, J.W. Zanzot, and D.M. Rizzo
First Report of Pyracantha koidzumii as a Host for Phytophthora ramorum 36 KB
Stephan C. Briere, Sarah Llewellyn, and Gary Kristjansson
Mechanisms Underlying Differences in Inoculum Production by Phytophthora ramorum in Mixed-Evergreen Versus Tanoak-Redwood Forest in California 28 KB
Jennifer M. Davidson, Elizabeth J. Fichtner, Heather A. Patterson, Kristin R. Falk, and David M. Rizzo
Detection and Distribution of Phytophthora ramorum in Soils 548 KB
Elizabeth J. Fichtner, Shannon C. Lynch, and David M. Rizzo
Progress Toward the Development of a Model to Quantify the Efficacy of Detection Strategies for Phytophthora ramorum 20 KB
Yashika Forrester, Betsy Randall-Schadel, Allan Hogue, David Oryang, and Robert McDowell
A Case Study to Evaluate Ground-Based, Wildland Survey Methods for Phytophthora ramorum in Coast Live Oak Stands in California 236 KB
Susan J. Frankel, Sylvia Mori, Janice Alexander, Don Owen, Jennifer Davidson, and David M. Rizzo
Anatomical Examination of Phytophthora ramorum Infection in Camellia 20 KB
Elizabeth Geltz, Jessica McHugh, Lisa Baird, Sibdas Ghosh, Peter Thut, and Mietek Kolipinski
Application of Fungicides to Protect Four Hosts From Foliar Infection by Phytophthora ramorumin Curry County, Oregon 20 KB
Ellen Michaels Goheen, Alan Kanaskie, Jennifer Parke, Melody Roth, Nancy Osterbauer, and Aaron Trippe
Quantitative Resistence to Phytophthora ramorum in Tanoak 20 KB
Katherine Hayden and Matteo Garbelotto
Inoculation Trials With Phytophthora ramorum on Moorland Species 336 KB
Stefan Wagner, Katrin Kaminski, and Sabine Werres
Infectivity and Survival of Phytophthora ramorum in Recirculation Water 44 KB
Heinrich Beltz, Thomas Brand, Katrin Kaminski, Dankwart Seipp, Stefan Wagner, and Sabine Werres
Ectomycorrhizal Diversity Associated With Tanoaks (Lithocarpus densiflorus) 20 KB
Nicholas Kordesch, Sarah Bergemann, and Matteo Garbelotto
Survival of Phytophthora ramorum in Tanoak and Rhododendron Leaves 32 KB
I. McLaughlin, W. Sutton, and E. Hansen
Monitoring Phytophthora ramorum Distribution in Streams Within Coastal California Watersheds 20 KB
Shannon K. Murphy, Chris Lee, John Bienapfl, Yana Valachovic, and David M. Rizzo
Monitoring of Phytophthora ramorum in the North Central United States 20 KB
Frances S. Ockels, Pierluigi Bonello, and Manfred Mielke
Surveying for Phytophthora ramorum in Urban and Wild Forests Throughout Western Oregon 20 KB
N. Osterbauer, A. Trippe, S. Suttle, M Boschee, A. Kanaskie, and L. Bauer
Detached-Leaf Assays With Phytophthora ramorum: Are They Valid? 20 KB
Jennifer L. Parke, Melody L. Roth, and Caroline J. Choquette
Nursery Cultural Practices and Physiological State of Nursery Stock on Susceptibility of Phytophthora Species, Including P. ramorum 36 KB
Steven J. Scheuerell, Robert G. Linderman, Niklaus J. Grunwald, and E. Anne Davis
Environmental Limits to Infection by Phytophthora ramorum in Tanoak and California Bay Laurel 20 KB
Lilly Schinsing, Katherine Hayden, and Matteo Garbelotto
Evaluating the Survival of Phytophthora ramorum in Firewood 20 KB
John Shelly, Ramnik Singh, Christine Langford, and Tad Mason
Development of Detection Methods for Phytophthora ramorum in Georgia 20 KB
Pauline Spaine, William Otrosina, and Stephen Fraedrich
Sudden Oak Death Bike Tire Scrubber 29 K

Peter Thut, Rocky Chavez, Desaree Williams, Sibdas Ghosh, Lisa Baird, Mietek Kolipinski, and Bruce Badzik
Phytophthora ramorum Research and Control in North Coastal California 24 KB
Yana Valachovic, Chris Lee, Dave Rizzo, Jack Marshall, John Bienapfl, and Shannon Murphy
Plotless Evaluation of Phytophthora ramorum Incidence in Oaks and Tanoaks in Two Different Forest Types in California 44 KB
Brice A. McPherson, David L. Wood, N. Maggi Kelly, Andrew J. Storer, and Richard B. Standiford
Phytophthora ramorum on Calluna vulgaris, Photinia fraseri, and Pieris japonica in Poland 20 KB
Leszek B. Orlikowski, Aleksandra Trzewik, and Grazyna Szkuta
Comparative Evaluation of Real-Time PCR (TaqMan®) With Isolation for Diagnosis of Phytophthora ramorum 28 KB
Kelvin Hughes, Ruth Griffin, Jenny Tomlinson, Neil Boonham, Victoria Barton, Patricia Giltrap, Ellie Hobden, Lynn Walker, Gilli Humphries, Ann Barnes, Paul Beales, Alan Inman, and Charles Lane
Elimination of Phytophthora ramorum in the Tunnel Composting Process 48 KB
Maikel Aveskamp and Johanneke Wingelaar

Index 18 KB


Frankel, Susan J.; Shea, Patrick J.; Haverty, Michael I., tech. coord.  2006.  Proceedings of the sudden oak death second science symposium: the state of our knowledge  Gen. Tech. Rep. PSW-GTR-196. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station; 571 p.