Proceedings of the seventh sudden oak death science and management symposium: healthy plants in a world with Phytophthora

Abstract

The seventh sudden oak death science and management symposium provided a forum for current research concerning sudden oak death caused by the exotic, quarantine pathogen, Phytophthora ramorum. Nearly 50 submissions describing papers or posters on the following sudden oak death/P. ramorum topics are included: ecology, monitoring, and nursery and wildland management. Abstracts are also provided from sessions on Phytophthoras in California native plant nurseries and restoration sites.

Titles contained within Proceedings of the seventh sudden oak death science and management symposium: healthy plants in a world with Phytophthora

• Slowing the spread of sudden oak death in Oregon forests, 2001–2018
• Comparative epidemiology of EU1 and NA1 lineages of Phytophthora ramorum in southwestern Oregon tanoak forests
• Over two decades of sudden oak death in California
• Impacts of and responses to sudden oak death on Marin watershed lands
• Status of the Phytophthora ramorum epidemic across forests of the East Bay Regional Park District, San Francisco Bay Area, California
• Early host resistance selection and development should have been a primary management response to the sudden oak death epidemic
• Incidence and distribution of resistance in a coast live oak/sudden oak death pathosystem
• Long-term performance of sudden oak death management treatments in northern California locations
• Selective thinning of California bay laurel is a cost-effective way to control Phytophthora ramorum in mixed-oak woodlands
• A high throughput DNA fingerprinting tool for biosurveillance of the sudden oak death pathogen Phytophthora ramorum
• Dual transcriptome analysis reveals insights into innate and phosphite-induced resistance of tanoak to Phytophthora ramorum
• Bark scribing as a treatment for sudden oak death: a case study in why controls matter
• Phytophthora species can be reliably detected by dogs both from infested substrates and infected plants
• Using citizen science and outreach education to reduce the risk of Phytophthora ramorum spread in Oregon forests
• The development and application of dynamic, geospatial P. ramorum spread models for Oregon
• Oregon sudden oak death management followup: epidemiology
• Fire and sudden oak death's effect on species prevalence in Big Sur, California
• Wildfire limits the occurrence, frequency, and impacts of Phytophthora ramorum in the coastal forests of Big Sur, California
• Evaluating threats posed by exotic Phytophthora species to sensitive plant communities in the Santa Clara Natural Community Conservation Plan area
• Exotic Phytophthora species are being systematically introduced in California wildlands during restoration projects
• Ten new provisional species of Phytophthora and Nothophytophthora from California
• Assessing the incidence and diversity of Phytophthora species in planned restoration areas of the Angeles National Forest
• Metabarcoding for Phytophthora—benefits and limitations
• Soilborne Phytophthora species at restoration sites in the Midpeninsula Regional Open Space District
• Determining the minimum treatment area and importance of soil moisture for effective soil solarization in nurseries
• Accreditation to improve restoration program shows promise for pathogen prevention
• Approaches to protect against Phytophthoras at the Presidio
• New diagnostic tools have led to important new discoveries
• Phytophthora species associated with decline and mortality of native vegetation in California wildlands
• Observations of Castanea sativa as a host of Phytophthora ramorum in England over a decade
• Characterization of hybrids between Phytophthora lacustris and P. riparia
• Intraspecific diversity of Californian clade 3 Phytophthora isolates
• Genomic and metagenomic exploration of microbial endophytes and a new potential Phytophthora species in the monkey puzzle tree Araucaria araucana in Chile
• Management of Phytophthora ramorum at a botanical garden in Washington State, USA
• A technique for treating contaminated soil with steam for eradication of Phytophthora
• Exploring interactions among disease, fuel loads, and fire intensity in Sonoma County Oak Woodlands
• Rapid recovery and detection of Phytophthora ramorum propagules in nursery water
• A survey of Phytophthora, Pythium, and Phytopythium species in soil from upland prairie restoration sites in western Oregon
• Comparative epidemiology of NA1 and EU1 Phytophthora ramorum isolates From Curry County, OR
• Distribution of Phytophthora quercina and other oak-root Phytophthora pathogens in the Midpeninsula Regional Open Space District
• Phytophthora diversity in Lake Mathews, the irrigation water source for a southern California nursery
• Is sudden oak death becoming a threat to California's chaparral ecosystem? First indications for Phytophthora ramorum moving into drier and warmer habitats
• Susceptibility of Canadian flora to EU2 lineage of Phytophthora ramorum and pathogen sporulation potential
• Variation in susceptibility to the EU1 and NA1 lineages of Phytophthora ramorum among southern Oregon tanoak families
• Role of herbivorous insects on California bay laurel in sudden oak death disease dynamics
• Spread the word, not the disease! Sudden oak death outreach and the UC Master Gardener Program of Sonoma County SOD Specialists
• A healthy world and plants with Phytophthora? Multiple introductions of tree pathogens to a newly established woodland

Citation

Frankel, Susan J.; Alexander, Janice M., tech. cords. 2020. Proceedings of the seventh sudden oak death science and management symposium: healthy plants in a world with Phytophthora. Gen. Tech. Rep. PSW-GTR-268. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 121 p.