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Conference Program

All meetings and presentations at the Scottsdale Conference Center unless indicated otherwise.

2014 National Allium Research Conference

  • Poster Session (Dec. 3 - 5) {Poster Size = 36 inches x 36 inches}


Scottsdale, Arizona – Scottsdale Conference Center

Wednesday, December 3 - Arrival

6:00 – 8:30 pm             NOA / NARC Registration & Reception

NARC Poster Setup

Thursday, December 4 – NOA / NARC Meetings

7:30 – 8:15 am            NOA / NARC Breakfast & Introduction to Merged Event
7:30 am – noon           NOA / NARC Conference Registration – continued

8:15 am – noon           NOA Committees; Break; Board of Trustee Meeting

NARC Session I  Moderator:  Howard Schwartz, Colorado State University

8:15 – 8:45 am            Factors Critical to the Development of Bacterial Rots of Onion: A Strategy.

Jean M. Bonasera, Jo Ann E. Asselin and Steven V. Beer; Section of Plant Pathology and Plant-Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca NY


8:45 – 9:15 am            Foliar Bacterial Disease Severity and Its Use as a Threshold to Time Sweet Onion Harvest. Emily E. Pfeufer and Beth K. Gugino; The Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, University Park, PA

9:15 – 9:45 am            Survey of Bacterial Diseases in Onion in Michigan and Identification.

Kim Eang Tho1, Prissana Wiriyajitsomboon1, Jan M. Byrne2, and Mary K. Hausbeck1; 1Department of Plant, Soil and Microbial Sciences, Michigan State University, 2Diagnostic Services at Michigan State University, East Lansing, MI

9:45 – 10:00 am          BREAK

10:00 – 10:30 am         Interactions between Tobacco Thrips (Frankliniella fusca (Hinds) and Pantoea ananatis ((Serrano) Mergaert et al.), Causal Agent of Center Rot of Onion. Bhabesh Dutta, Dept. of Plant Pathology, Univ. of Georgia; Apurba Barman, Dept. of Entomology, Texas A&M Univ.; Rajagopalbabu Srinivasan, Dept. of Entomology, Univ. of Georgia; Ronald Gitaitis, Dept. of Plant Pathology, Univ. of Georgia; Diane Ullman, Dept. of Entomology & Nematology, UC Davis; David Langston, Tidewater Agr. Res. & Ext. Ctr, Virginia Tech. Univ.

10:30 – 11:00 am           Survival of Escherichia coli on Dry Bulb Onions during Field Curing and Packout. Stuart Reitz, Malheur County Extension, Oregon State University, Ontario, OR; Clinton C. Shock, Malheur Experiment Station, Oregon State

University, Ontario, OR; Rocco Roncarati, Malheur County Extension, Oregon State University, Ontario, OR; Harry Kreeft, Western Laboratories, Parma, ID

11:00 – 11:45 am        Micronutrient Effects on Sour Skin Severity. Anna Selph, Department of Plant Pathology, University of Georgia, Tifton, GA; Ron Gitaitis, Department of Plant Pathology, University of Georgia, Tifton, GA; Bhabesh Dutta, Department of Plant Pathology, University of Georgia, Tifton, GA; David Burrell, National Onion Labs, Inc., Collins, GA

11:45 – 12:00 pm         Open Discussion

LUNCH                       NOA / NARC participants

NOA / NARC Session II  Moderator:  Juan Carlos Brevis, Bayer Crop Science Vegetable Seeds

1:30 – 2:30 pm             NOA Presentations

Manager’s Report: U.S. Onion Situation. Wayne Mininger, NOA
Consumer Perceptions About Food & Agriculture. Kim Reddin, NOA

2:30 – 3:15 pm            FSMA / FDA Supplementals and Implications for the Onion Industry. Joy Waite-Cussack, Oregon Dept. of Agriculture / Oregon State Univ. {Tentative}

3:15 – 3:45 pm             BREAK

3:45 – 4:15 pm            Varietal Differences in Phenolic Content and Anti-Cancer Potential of Western Long-Day Onions. Michael Bartolo1, Thaddeus Gourd2, Timothy Waters3, Carrie Wohleb3, Zongjian Zhu4, Weiqin Jiang4 and Henry Thompson4.1Colorado State University, Arkansas Valley Research Center; 2Colorado State University, Extension; 3Washington State University, Extension; 4Colorado State University, Cancer Prevention Laboratory

4:15 – 4:45 pm            Forty Years of Onion Variety Trials. Erik Feibert, Clint Shock, Lamont Saunders. Malheur Experiment Station, Ontario, OR

4:45 – 5:00 pm            Open Discussion

6:30 pm                       NOA / NARC Reception / POSTER Session / Dinner Buffet

Friday, December 5 – NOA / NARC Meetings

7:00 – 8:00 am            NOA / NARC Breakfast

NARC Session III  Moderator:  Mark Uchanski, New Mexico State University

8:00 – 8:30 am            Phylogeography of Iris yellow spot virus (Tospovirus: Bunyaviridae).

H.R. Pappu, Department of Plant Pathology, Washington State University, Pullman, WA

8:30 – 9:00 am            Effect of Potassium on IYSV Incidence and Symptom Expression in Onion.

Claudia Nischwitz, Utah State University, Dept. of Biology, Logan, UT; and Howard Schwartz, Colorado State University, Dept. of Bioagricultural Sciences and Pest Management, Fort Collins, CO

9:00 – 9:30 am            Epicuticular Waxes on Onion Leaves and Associated Resistance to Onion Thrips. Steven J. Damon, Russell L. Groves, Departments of Horticulture, Entomology; and Michael J. Havey, USDA-ARS, University of Wisconsin, Madison, WI

9:30 – 10:00 am          BREAK

10:00 – 10:30 am         Incorporating Host Plant Resistance into an IPM Program for Onion Thrips.

Brian A. Nault, Dept. of Entomology, Cornell University, New York State Agricultural Experiment Station, Geneva, NY

10:30 – 11:00 am         Thrips Control Strategies for Dry Bulb Onions in Washington State.

Tim Waters, Washington State University Extension Franklin and Benton Counties, Pasco, WA

11:00 – 11:30 am        Management of Perennial Sow Thistle (Sonchus arvensis) in Onions in New York. Christine Hoepting and Elizabeth Buck, Cornell Cooperative Extension Regional Vegetable Program, Albion, NY


11:30 – 12:00 pm         Open Discussion

LUNCH                       NARC participants

NARC Session IV  Moderator:  Tim Waters, Washington State University

1:00 – 1:30 pm           Characterization of Setophoma terrestris Populations in Michigan Onion Fields and Fungicide Testing. Prissana Wiriyajitsomboon and M.K. Hausbeck, Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI

1:30 – 2:00 pm           Fungicides and Spray Timing for the Management of Stemphylium Leaf Blight of Onion. Mary Ruth McDonald, Michael Tesfaendrias and Kevin Vander Kooi. Dept. of Plant Agriculture, University of Guelph, Guelph, ON

2:00 – 2:30 pm           Peroxycompounds - An Overview of Chemistry and their Applications in Onion Disease Management. Vijay Kumar Choppakatla, Biosafe Systems, East Hartford, CT

2:30 – 3:00 pm            BREAK

3:00 – 3:30 pm           Does Furrow or Drip Irrigation Qualify as an Indirect Method to Irrigate Onions? Clinton C. Shock, Stuart R. Reitz, Rocco A. Roncarati, Jose M. Pinto, T.A. Laubacher, R.D. Ross, A.C. Mahony, H. Kreeft, and Byron M. Shock; Oregon State University Malheur Experiment Station, Ontario, OR

3:30 - 4:00 pm           Evaluation of Arbuscular Mycorrhizal Fungi in Onion Production in the Columbia Basin of Washington and Oregon. Lindsey du Toit,  Jenny Knerr, Dipak Sharma-Poudyal, and Tim Paulitz, Washington State Univ., USDA-ARSe


4:00 – 4:30 pm         Should Onion Storage in Wooden Totes be Abandoned and the Totes Replaced by Plastic Bins? Clinton C. Shock, Stuart R. Reitz, Rocco A. Roncarati, Jose M. Pinto, H. Kreeft, and Byron M. Shock; Oregon State University Malheur Experiment Station, Ontario, OR

4:30 – 5:00 pm          Open Discussion


6:30 pm                     NOA / NARC Reception / POSTER Session


7:30 pm                     Dinner Banquet

Saturday, December 6 – NOA / W2008 / Other Meetings

7:30 – 8:30 am            NOA / NARC / W2008 Breakfast

8:30 – 9:30 am            NOA Crop Reports

9:30 am - noon            W2008 Research & Extension Committee Reports (open to all) 1:00 – 3:00 pm Tour – Buckeye Onions


Noon - 1:00 pm           Lunch ( on your own)

1:00 – 3:00 pm             Onion & Garlic Germplasm Subcommittee (open to all)

3:00 – 5:00 pm             Specialty Crop Research Initiative Grant Planning (open to all)


Poster Size { = 36" by 36"}  


Schwartz, Hammond, Moore, Sakata


State Univ

Poster 1

A comparison of Fusarium oxysporum tolerance among forty

onion varieties under field growing conditions

Mandal &



Mexico State Univ.

Poster 2

Selection progress for Fusarium basal rot resistance in onions



U. of


Poster 3

Vernalization, dormancy, and the annualization of onion (Allium

cepa) for breeding



U. of

Wisc., USDA

Poster 4

Why are there so many molecular markers tagging the Mslocus of



Welsh, Wise, Havey



Poster 5

Genetic analyses of anthocyanin concentrations and the intensity

of red color in onion


Alston, Nischwitz, Reeve

Utah State


Poster 6

Assessment of on-farm practices and their influences on thrips,

IYSV and productivity


Gitaitis, Courtinho, Langston

U of GA,

South Africa, Virg Tech

Poster 7

A novel pathovar of Pseudomonas coronafaciens(pv.

morsceparum nov.), responsible for yellow bud of onion


Asselin, Beer


Poster 8

Bacterial rots of onion in New York and novel techniques to

identify the culprits


U of Idaho

Poster 9

Bacterial diseases ? {




Kooi, McDonald

Univ. of


Poster 10

Influence of surfactants on control of onion thrips and

Stemphylium leaf blight of onions in Ontario, Canada


Hernandez, Alabi



Poster 11

Incidence and distribution of foliar pathogens of onions in the

Lower Rio Grande Valley of South Texas





Poster 12

Onion ipmPIPE: A coordinated effort to improve the management

of onion thrips and Iris yellow spot virus for the U.S. onion industry.

Velasaquez, Pappu, et al. Wash. State Univ, Mexico   Poster 13 Identification and molecular characterization of Iris yellow spot virus (Tospovirus: Bunyaviridae) in onion nurseries in Zacatecas, Mexico



Mexico State U

Poster 14

Progress for reduced thrips number and Iris Yellow Spot in onions


Kooi, McDonald

Univ. of


Poster 15

Insecticide control of onion maggot and seed corn maggot in

onions in Ontario, Canada

Hoepting Cornell    Poster 16

Cornell onion thrips management program for New York onion

growers valued at one million per year