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Agenda 2018


Joint Meeting of the American Phytopathological Society (APS), Pacific Division and Conference on Soilborne Plant Pathogens (CSPP)




Joint Meeting June 25-27, 2018

Hilton Downtown Portland
Portland, Oregon 







Monday June 25

8:00 AM – 3:30 PM     Field Trip


4:00 – 5:30 PM            Careers 101


5:30 – 7:00 PM            Reception (light food and cash bar)


7:00 PM                      Divisional Forum Representatives Business Meeting



Tuesday June 26


7:00 – 8:00 AM            CSPP Steering Committee meeting


8:15 – 8:30 AM            Introduction to meeting by Tim Murray, APS President


8:30 – 10:00 AM         Symposium: Foliar Diseases That Lurk Belowground

Moderator: Kendra Baumgartner
8:30 AM Thomas Gordon, UC Davis Activities of Fusarium circinatum in soil.
9:00 AM Everett Hansen, OSU Look up for Phytophthora! Phytophthora as a foliage, shoot, and stem pathogen of forest trees.
9:30 AM Thomas Forge, Agriculture and Agri-Food Canada The stem and bulb nematode, Ditylenchus dipsaci: An enigmatic species of increasing importance in North America.


10:00 – 10:20  AM      Coffee Break (snacks provided)



10:20 – 11:35  AM      Graduate Student Presentations

Moderators: Jose Urbez-Torres and Joseph Carrillo
10:20 AM Erin Galarneau, UC Davis Grapevine trunk pathogen Neofusicoccum parvum tolerates host phytoalexin phenolic compounds.
10:35 AM Arunabha Mitra, WSU Grapevine leafroll-associated virus 3 is present as genetically distinct strains in Washington State vineyards.
10:50 AM Leslie Holland, UC Davis An integrated approach towards management of canker diseases of almond in California.
11:05 AM Jason Carter, UC Davis Fusarium circinatum infects grasses and pines at Pt. Reyes National Seashore.
11:20 AM Shankar Shakya, OSU Analysis of global populations of Phytophthora cinnamomi suggests presence of two dominant clonal lineages and evidence of sex in Southeast Asia.



11:35-1:00       Lunch (on your own)


1:00-3:15         Presentations by Student Award Winners- APS 1st place presentation award winners from each division in 2017 and CSPP winners

Moderators: Natalie Goldberg and Tim Paulitz
1:00 PM Andrea Garfinkel, APS Pacific Division Multiple new pathogens revealed in a survey of peony diseases in the United States.
1:15 PM Kelsey Andersen, APS Southern Division Modeling Epidemics in Seed Systems to Guide Management Strategies: The Case of Sweet potato in Northern Uganda.
1:30 PM Jose Garcia Gonzalez, APS Potomac Division Suppression of Southern Blight in Potato Through Cultural Practices in the Mid-Atlantic Region.
1:45 PM Chelsea Harbach, APS North Central Division Investigating the interactions of the soybean cyst nematode with cover crops under greenhouse conditions.
2:00 PM James Hempfing, APS Northeastern Division Dollar Spot Control Affected by Bentgrass Susceptibility and Fungicide Programming.
2:15 PM Chiti Agarwal, CSPP Characterizing resistance to metalaxyl resistant Pythium ultimum in chickpeas.
2:30 PM David Wheeler, CSPP Prediction of Verticillium wilt in mint fields using Verticillium dahliae DNA, Pratylenchus penetrans, mint cultivar, and crop age.
2:45 PM Saltanat Mambetova, CSPP Genotypic and phenotypic characterization of pathogenic Streptomyces spp. on potato and turnip in Michigan.
3:00 PM Mercedes Schroeder, CSPP Disarming Macrophomina phaseolina: Could Arabidopsis help discover a means to circumvent a global destroyer of crop plants?



3:15 – 3:35 PM            Coffee Break (snacks provided)


3:35 – 5:05 PM            Graduate Student Presentations

Moderators: Jerry Weiland and David Wheeler
3:35 PM Cristian Olaya, WSU The Tomato spotted wilt orthotospovirus RNAs are differentially processed in infected tomato (Solanum lycopersicum) with or without Sw5.
3:50 PM Sarah Lowder, OSU Chasmothecia sampling as a pre-season indicator of QoI fungicide resistance in Erysiphe necator.
4:05 PM Albre Brown, UC Davis Wood-rotting Basidiomycetes associated with grapevine trunk diseases in North America.
4:20 PM Jorge Gomez-Soto, Cal Poly Host plant resistance to Macrophomina crown rot and Verticillium wilt in strawberry cultivars and elite selections.
4:35 PM Jensen Hayter, Texas A&M Adapting Soil Moisture Models to Improve Epidemiological Modeling of Soilborne Plant Disease.
4:50 PM Sosse Kendoyan, CSU Fresno Chalcones Control Plant Parasitic Nematodes and are Harmless to Soil Microorganisms: Better Crops for All.



5:05 – 6:00 PM            Poster Session

Poster Presenters:

David Ginocchio, WA State Dept. of Agriculture Validation of Xylella fastidiosa synthesized gene fragments for use as a qPCR control with inserted BamHI cut sites for downstream quality control. .
Maryna Serdani, OSU Pathogenic Rhodococcus associated with previously unreported woody and herbaceous plant hosts.
Christina Hagerty, OSU Does it take two to tango? Interaction of Fusarium pseudograminearum and Pratylenchus neglectus on wheat.
Irene Lavagi, UC Riverside The National Clean Plant Network for Citrus: A model system for the prevention of citrus diseases.
Cara Boucher, OSU Prevalence of Race 2 Strains of Verticillium dahliae causing Verticillium wilt of mint in Oregon.
Aimee Hopkins, UC Davis Soil amendment with Fusarium oxysporum Strain 47 control of Fusarium wilt of lettuce.
Joey Mayorquin, UC Riverside Investigating the role of Colletotrichum karstii in twig and branch dieback of citrus in California.
Siva Sabaratnam, BC Ministry of Agriculture Phomopsis stem canker: an emerging threat to hazelnut production in British Columbia.
Shari Lupien, USDA ARS WRPIS Botrytis cinerea on faba bean in Washington State.
Qunkang Cheng, OSU Population genetic structure of Claviceps purpurea in cool-season grass seed crops of Oregon.
Jason Zurn, USDA-ARS Searching for resistance to soilborne pathogens in cultivated strawberries and the Fragaria supercore.
Christine Dilla-Ermita, WSU Wheat variety-specific recruitment of bacterial communities towards Rhizoctonia solani AG8 suppression.
Katie Coats, WSU Novel sequencing reveals diagnostic assay of MAT1-1 and MAT1-2 mating type idiomorphs in Botrytis paeoniae.
Phillip Fujiyoshi, UC Davis Grapevine trunk pathogens in California associated with the apoplectic stage of Esca.
Jose Ramon Urbez-Torres, Agriculture and Agri-Food Canada Less-common fungi isolated from grapevines in British Columbia and their role in the trunk-disease complex.
Valeria Smith, Montana State University Comparison of fungicides for control of Rhizoctonia solani in sugarbeets.
Brad Geary, Brigham Young Univ Soil fungal community differences in potatoes due to geographical locations.
Ann Rasmussen, OSU Sensitivities of Botrytis cinerea pear isolates to registered and new fungicides.
Elizabeth Hellman, UC Davis Understanding the effects of agricultural salinization on the incidence and severity of Fusarium wilt of tomato in California’s Central Valley.
Rodrigo Montana Torres-Chavez, CICESE Mexico Screening for mycorrhizal fungi associated with Solanum hindsianum, a common shrub from the arid regions of the Baja California peninsula, Mexico
Tyler Bourret, UC Davis Multiple origins of downy mildews and mito-nuclear discordance within the paraphyletic genus Phytophthora.
Marianne Elliott, WSU Factors that influence the efficacy of steam mitigation for Phytophthora ramorum in soil.
Shulu Zhang, Agdia, Inc. AmplifyRP® – a versatile diagnostic tool for rapid detection of plant pathogens.
Irene Lavagi, UC Davis Citrus dwarfing viroid infection results in reduced apical shoot growth in navel orange trees on trifoliate rootstock.
Nickisha Pierre-Pierre, USDA ARS Genetic Diversity of Rhizobium leguminosarum and Mesorhizobium ciceri from Pea and Chickpea Fields in the Palouse.
Clara Weidman, OSU Impacts of Solarization on the Soil Microbiome in Pacific Northwest Tree Seedling Nurseries.
Upasana Dhakal, University of Hawai Survey for Ceratocystis fimbriata on Syngonium species in Hawaii.
Vivian Maier, CSU Fresno Assessment of Fusarium oxysporum f. sp. vasinfectum race 4 as a seedling pathogen to cotton, common bean, and soybean using a rolled towel assay.
Nejra Solo, University of Idhao Characterization of Glutathione S-transferase (GST) and Superoxide Dismutase (SOD) from the Potato Cyst Nematode Globodera pallida.
Krystel Navarro, Ohio State University Comparison of water-mold populations in Ohio using traditional isolation methods and an amplicon based metagenomics approach.
Christina Mulch, OSU Aphid resistance screening using high resolution melting marker and rapid DNA extraction protocol.
Cristian Olaya, WSU Incidence and Distribution of thrips-transmitted viruses in Dahlia (Dahlia variabilis) in six states of the US.


6:00 – 8:00 PM            Banquet (Hilton) – Tim Paulitz to present CSPP scholarships.  APS President Tim Murray – update on APS council activities.


8:00 – 9:00 PM            APS Pacific Division Board meeting



Wednesday June 27

8:15 – 10:30 AM         CSPP Oral Presentations – Concurrent Session

Moderators: Tim Paulitz and Benjamin Gomez-Soto
8:15 AM Timothy Paulitz, APS President Welcome
8:30 AM Kimberly Zitnick-Anderson, NDSU Determining communities within the pea root rot complex and their associations among soil edaphic properties and disease incidence. .
8:45 AM Mohamed Nouri, UC Davis Identification and pathogenicity of fungal species associated with crown and root rot diseases of pistachio in California.
9:00 AM Daniel Lawrence, UC Davis Taxonomy and phylogeny of cylindrocarpon-like fungi associated with root rot diseases of perennial fruit and nut crops in California.
9:15 AM Johan Leveau, UC Davis Soil and root microbiota of field-grown processing tomatoes at various spatial scales.
9:30 AM Brent Holtz, UCCE The impact of whole almond orchard recycling on Prunus Replant Disease, Basidiomycetes, bacterial and free living nematode populations.
9:45 AM James Borneman, UC Riverside Identifying, Understanding and Utilizing Soils Suppressive Against the Sugarbeet Cyst Nematode
10:00 AM Christina Hagerty, OSU Practical management for Soilborne wheat mosaic virus: an emerging disease in the dryland Pacific Northwest.
10:15 AM Julie Miranda Longland, ISAGRO Biological products update by ISAGRO, USA, Inc.



8:15 – 10:30 AM         Graduate Student Presentations – Concurrent Session

Moderators: Sarah Light and Albre Brown
8:15 AM Morgan Gray, UC Riverside Pre-harvest management of Phytophthora brown rot to prevent trade restrictions of California citrus.
8:30 AM Catie Wram, OSU Physiological Effects of Sub-Lethal Doses of Post-Plant Nematicides on Meloidogyne incognita.
8:45 AM Carmen Murphy, MSU Aphanomyces euteiches detection and in-field location in Montana.
9:00 AM Jn Contina, University of Idaho Modeling the spatial distribution of the potato cyst nematode Globodera pallida in Idaho.
9:15 AM Afsha Tabassum, WSU Efficacy of the artificial microRNA against silencing suppressor (NSs) gene of Tomato spotted wilt orthotospovirus for imparting resistance.
9:30 AM Raphael Adegbola, WSU Sequence diversity of Impatiens necrotic spot virus.
9:45 AM Vishnu Ellur, WSU Using chickpea polygalacturonase-inhibiting protein as a tool to elucidate molecular mechanisms of chickpea interactions with various pathogens.
10:00 AM Edelweiss Rangel-Montoya, CICESE Mexico Types and roles of melanin in the grapevine phytopathogenic fungus Lasiodiplodia exigua.
10:15 AM Thomas Ingram, NC State University Optimizing Genetics to Manage Verticillium Wilt in Tomatoes Through Traditional Breeding and Grafting: An Elusive Challenge.


10:30 – 10:50 AM       Coffee Break (snacks provided)


10:50 AM – 12:05 PM             CSPP Oral Presentations – Concurrent Session

Moderators: Tim Paulitz and Benjamin Gomez-Soto
10:50 AM Melissa O’Neal, Marrone Bio Innov Inc. New biofumigant (Muscodor albus) and new biofungicide (Bacillus amyloliquefaciens).
11:05 AM Wei Wei, WSU Sclerotinia sclerotiorum secretes a small peptide that specifically interacts with plant polygalacturonase-inhibiting protein (PGIP) .
11:20 AM Miaoying Tian, University of Hawai A host-specific RxLR effector of Phytophthora palmivora contributes to virulence on cacao.
11:35 AM Tyler Bourret, UC Davis Restoration outplantings of nursery-origin Californian flora are heavily infested with Phytophthora.
11:50 AM Ebba Peterson, OSU Epidemiology of soilborne inoculum of Phytophthora ramorum in nurseries.




10:50 – 11:50 AM       Graduate Student Presentations – Concurrent Session

Moderators: Erin Galarneau
10:50 AM Bryan Webber, OSU Characterization of Xanthomonas arboricola pv. corylina causing bacterial blight of hazelnut.
11:05 AM Joseph Carrillo, UC Riverside Selective media for recovery of Graphium euwallaceae and Paracremonium pembeum from polyphagous shot hole borer field samples.
11:20 AM Shaheen Bibi, University of Florida Transcriptomic analyses of Phytopthora parasitica treated with silver nanoparticles using the RNA-seq approach.
11:35 AM Daniel Farber, WSU Disease gradients of Late Blight of potato from infrared images of infected fields.


12:05 – 1:30 PM          Lunch (on your own), Graduate Student Competition Judges Meeting.


1:30 – 3:30 PM            APS Oral Presentations

Moderators: Virginia Stockwell and Leslie Holland
1:30 PM James Farrar, UC Davis, IPM The IPM Concept of Thresholds in Plant Disease Management. .
1:45 PM Themis Michailides, UC Davis Infection of walnut by Botryosphaeriaceae and implications in disease control management.
2:00 PM Achour Amiri, WSU Fungicide resistance occurrence in the blue and gray mold fungi of pome fruit in the Pacific Northwest.
2:15 PM Vikas Koundal, WSU Comparison of fungicide application methods to control postharvest diseases in apple.
2:30 PM Kendra Baumgartner, USDA ARS Grapevine resistance to Phomopsis foliar and trunk diseases.
2:45 PM Takao Kasuga, WSU Characterization of phenotypic variation and genome aberrations in Phytophthora ramorum.
3:00 PM Andrea Blas, University of Guam Protecting a cultural icon and food resource: Current research and status of coconut palm in Guam and the Northern Marianas.
3:15 PM Emily Helliwell, WSU Mosaic distribution of an antagonistic locus within a legume-rhizobium invasion.


3:30 – 3:50 PM            Coffee Break (snacks provided)


3:50 – 4:35 PM            APS Oral Presentations

Moderators: Wei Wei
3:50 PM Jati Adiputra, WSU Genetic diversity of grapevine leafroll-associated virus 4 in Washington State vineyards.
4:05 PM Don Huber, Purdue University Evaluation of copper-iodo-phosphonate on fire blight of pears.
4:20 PM Kendra Baumgartner, USDA ARS Awards presented to winning APS students.


Meeting concludes at 4:35.