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Research: Recent Highlights

Awards and Honors

Dr. Debra Inglis received a promotion to Professor, effective July 2010.

Tim Miller was co-recipient of 2009 Team Interdisciplinary Award (along with other WSU faculty and staff), College of Agricultural, Human, and Natural Resources Sciences.

Lindsey du Toit was appointed as Adjunct Faculty in the Dept. of Plant Pathology at the University of Arkansas in January 2010.

As a result of her nomination by WSU NWREC faculty and local community members,Debra Inglis received WSU CAHNRS’ National Women’s History Month Award for Professional and Academic Leadership, and was inducted into the WSU CAHNRS’ Hall of Honored Alumni and Friends in October 2009. (This award signifies contributions made to the college during the time she served as NWREC’s Interim Director, and celebrates the professional achievements of women affiliated with CAHNRS over many years.)

Lindsey du Toit and Tim Miller were interviewed by John Ryan, reporter for KUOW National Public Radio, for two articles on brassica biofuel crops and vegetable brassica seed crops titled Skagit Farmers Wary Of Biofuel Crops and Can Biofuel Make Air Travel Climate-Friendly? which aired on KUOW National Public Radio on 6 and 7 January 2010, respectively (http://kuow.org/program.php?id=19137  andhttp://kuow.org/program.php?id=19143).

Lindsey du Toit started a 3 year term as Senior Editor for Plant Disease, an international journal of applied plant pathology.

Lynell Tanigoshi was interviewed by King 5 News about the potential Spotted Wing Drosophila threat. www.king5.com/news/environment/New-Fruit-Fly-Worries-Farmers-89032812.html

Debra Inglis is serving her 3rd year as Senior Editor of Plant Disease.

 

The 56th Soil Fungus Conference was held at the WSU Mount Vernon NWREC from 22–24 March 2010. The conference was started in 1954 by researchers from the University of California with interests in soilborne fungi, and now meets annually at locations across the western U.S. The conference has progressed into one of the best known and highly valued conferences in plant pathology focused on soilborne fungi. The 56th Soil Fungus Conference included a field tour of the Skagit Valley on March 22 during which 25 participants toured facilities at Sakuma Brothers, Washington Bulb Co., and Skagit Seed Services, in addition to various bulb, small fruit, grass, and vegetable seed crops across the valley. The field tour was followed by a social/banquet that evening to welcome the approximately 75 people attending the conference. Debra Inglis, Steven Koike (University of California Cooperative Extension), and Lindsey du Toit spoke in the opening symposium on March 23rd, titled “Soilborne diseases in coastal climates: Case studies on seed and specialty crops in the Skagit and Salinas Valleys”. Additional research presentations and interactive discussions took place during five sessions on March 23rd and 24th at the NWREC, including presentations by Tom Walters and the following graduate students from the WSU Mount Vernon NWREC Ana Vida Alcala, Emily Gatch, and Jessica Gigot.

 

Presentations and Seminars

Lindsey du Toit was invited to present a seminar to the Dept. of Plant Pathology at North Carolina State University on 19 October 2009 in Raleigh, NC; and to the Dept. of Plant Pathology at the University of Arkansas on 13 November 2009 in Fayetteville, AR. At both departments Lindsey spoke on ‘Vegetable Seed Production in the Pacific Northwest: Developing Integrated Disease Management Programs’, and met with graduate students to discuss her vegetable seed pathology research and extension program at the NWREC.

Lindsey gave three presentations at the Teddy E. Morelock International Spinach Conference on 11-12 November 2009 in Fayetteville, AR (Conference Details): 1) Spinach seed production, 2) Verticillium & spinach: Identifying effective seed treatments, 3) Verticillium & spinach: Developing a standardized seed health assay.

Lindsey spoke on “Managing diseases in vegetable crops” at the 2010 Short Course of the Columbia Basin Crop Consultants’ Association on 15 January 2010 in Moses Lake; gave two presentations at the annual conference of the Columbia Basin Vegetable Seed Association on 20 January 2010 in Moses Lake: 1) Management of Fusarium wilt in radish seed crops, 2) Infection of seed and transmission of seedborne pathogens; and presented with Emily Gatch, PhD student, a research report on “Fusarium wilt in spinach seed crops” at the annual meeting of the Puget Sound Seed Growers’ Association/Western Washington Agriculture Association on 29 January 2010 in Mount Vernon.

In February 2010, Lindsey spoke on “Fusarium wilt and Verticillium wilt in spinach seed production: What’s new?” at the Annual Seed Growers’ Meeting for Alf Christianson Seed Co./Wilbur Ellis on 16 February 2010 in Burlington; and gave two presentations at the annual meeting of the Western Oregon Specialty Seed Growers’ Association on 26 February 2010 in Albany, OR: 1) Fusarium wilt in radish and spinach seed crops, 2) Management of Verticillium wilt in spinach seed crops.

On 16 March 2010, Lindsey presented a research report “Seed treatments for management of Verticillium in spinach” at the Annual Meeting of the California Leafy Greens Research Program in Harris Ranch, CA.

Miles, C., Inglis, D., and du Toit, L. 2006 to present. PNW VEG (Vegetable Extension Group) team website is now updated.

Photo of labLindsey du Toit and Steven Koike (University of California Cooperative Extension)
organized 6 hour, hands-on, lab workshop titled “Spinach Verticillium Seed Assay Workshop” to demonstrate seed testing methods for identification and differentiation of Verticillium spp. and other necrot
rophic fungi on spinach seed. The workshop took place on 31 March 2010 in Davis, Davis, CA and was attended by 28 plant/seed pathologists (4 from Holland) representing seed companies, private and state seed testing labs, consulting companies, and regulatory agencies.


Debra Inglis:
Advised PhD candidate on organizing first Graduate Student Symposium at NWREC,Agriculture and Northwest Ecosystems, held November 10, 2009; also, gave invited closing remarks titled “Fluid Boundaries.”

Participated in 28th Annual Western Washington Potato Workshop, held at NWREC on February 19, 2010.

Workshop on Late Blight Forecasting in Western Washington is now scheduled during WSU/Skagit County Extension Potato Breakfast on March 5, beginning 7 am at the Farmhouse Inn.


Tim Miller:
Problems in vineyards panel discussion. September 12, 2009. Western Washington Viticulture Workshop, WSU Mount Vernon NWREC.

Sustainable weed management. September 23, 2009. WSU Skagit County Cultivating Success for Spanish-speaking Growers, WSU Mount Vernon NWREC.

Biology and control of yellow flag iris, butterflybush, and yellow archangel. October 22, 2009. Oregon Vegetation Management Association Annual Conference, Seaside, OR.

Studies on the biology and control of Japanese and other knotweeds. October 27, 2009. Alaska Committee for Noxious and Invasive Plant Management Conference, Ketchikan, AK.

How to manage pigweeds and common lambsquarters. November 5, 2009. Washington State Weed Conference, Yakima, WA.

Weed control in green peas. November 5, 2009. Washington State Weed Conference, Yakima, WA.

Reports from the lab: control of yellow archangel (Lamiastrum galeobdolon) and meadow knapweed (Centaurea debeauxii). November 5, 2009. Washington State Weed Conference, Yakima, WA.

Adjuvants/Surfactants: why we use them, how they work, what products can be used near/in water? November 12, 2009. Olympic Knotweed Working Group, Port Angeles, WA.

Aliens in your backyard: identification of some common weeds. November 23, 2009 (three classes). Imagine U@WSU, Spanaway Lake High School, Spanaway, WA.

Aliens in your backyard: identification of some common weeds. November 24, 2009 (three classes). Imagine U@WSU, Bremerton High School, Bremerton, WA.

Weed control vines and berry crops. December 1, 2009. Far West Agribusiness Association Winter Conference, Pasco, WA.

Natural herbicides for weed control. December 2, 2009. WSU Pesticide License Recertification Program, WSU Extension, WSU Puyallup.

About cane burning: what we know and what we need to find out. December 8, 2009. WSU Western Washington Small Fruit Workshop, Lynden, WA.

Identification and control of bindweed and similar weed species in berries. December 8, 2009. WSU Western Washington Small Fruit Workshop, Lynden, WA.

Weed control trials in blueberries. December 9, 2009. Growers meeting, Washington State Blueberry Commission, Mount Vernon, WA.

Managing noxious weeds in western Washington pastures. October 7, 2009. Master Livestock Advisor Training, Burlington, WA.

Weed identification and control. December 2, 2009. IPM for Spanish-speaking landscape workers, Bellevue, WA.

Natural herbicides for weed control. January 6, 2010. WSU Pesticide License Recertification Program, WSU Extension, WSU Vancouver.

Natural herbicides for weed control. January 13, 2010. WSU Pesticide License Recertification Program, WSU Extension, Tacoma, WA.

2008/2009 Weed management trials in bulbs. January 13, 2010. Wilbur-Ellis University, Auburn, WA.

Weed research update and information on perennial weed control in berries. January 14, 2010. North Willamette Valley Horticulture Society, Canby, OR.

Natural herbicides for weed control. January 21, 2010. WSU Pesticide License Recertification Program, WSU Extension, Mill Creek, WA.

Weed management in potatoes. January 28, 2010. Lower Mainland Horticulture Growers’ Short Course, Abbotsford, BC.

Evaluation of options for control of problem weeds in raspberries and strawberries. January 28, 2010. Lower Mainland Horticulture Growers’ Short Course, Abbotsford, BC.

Improved weed management in field vegetables. January 29, 2010. Lower Mainland Horticulture Growers’ Short Course, Abbotsford, BC.

Natural herbicides for weed control. February 1, 2010. WSU Pesticide License Recertification Program, WSU Extension, Lacey, WA.

Natural herbicides for weed control. February 4, 2010. WSU Pesticide License Recertification Program, WSU Extension, Des Moines, WA.

Herbicide efficacy for spinach, cabbage, and beet seed crops. February 16, 2010. Vegetable Seed Growers Meeting, Wilbur-Ellis and Alf Christianson Seed, Burlington, WA.

Natural herbicides for weed control. February 17, 2010. WSU Pesticide License Recertification Program, WSU Extension, Bremerton, WA.

Weed control in potatoes. February 19, 2010. Western Washington Potato Workshop, WSU Mount Vernon.

Weed management strategies for cabbage, spinach, and beet seed. February 26, 2010. Specialty Seed Growers of Western Oregon, Albany, OR.

Natural herbicides for weed control. March 3, 2010. WSU Pesticide License Recertification Program, WSU Extension, Seattle, WA.

How to conduct effective field trials for weed control. March 18, 2010. Washington State Weed Coordinators Association Conference, Ellensburg, WA.

 

Publications

Cummings, J.A., Miles, C.A., and du Toit, L.J. 2009. Greenhouse evaluation of seed and drench treatments for organic management of seedling blight pathogens of spinach. Plant Disease 93:1281-1292.

Schroeder, B.K., Waters, T.W., and du Toit, L.J. 2010. Evaluation of onion cultivars for resistance to Enterobacter cloacae in storage. Plant Disease 94:236-243.

Koike, S.T., du Toit, L.J., and Abawi, G.S. 2010. Cercospora leaf spot of vegetable crops in the Chenopodiaceae. Chapter 8 in: Cercospora Leaf Spot of Sugar Beet and Related Species. APS Press, St. Paul, MN.

Aclala, A., and du Toit, L.J. 2009. Management of damping-off in organic vegetable crops in the Pacific Northwest. Sustaining the Pacific Northwest 7(4):5-7.

du Toit, L.J., and Gatch, E.W. 2009. Increasing the capacity for spinach seed production in the United States by promoting soil suppression of Fusarium wilt. The Western Front, October 2009: Page 7 (Western Integrated Pest Management Center).

The Pacific Northwest Vegetable Extension Group (PNW VEG), for which Lindsey du Toit, Debbie Inglis, and Carol Miles are co-organizers, published an extension bulletin in 2010: Physiological leaf roll of tomato. PNW Extension Bulletin 616.

Porter, L.D., Hamm, P.B., David, N.L., Gieck, S.L., Miller, J.S., Gundersen, B, andInglis, D.A. 2009. Metalaxyl-M- resistant Pythium species in potato areas of the Pacific Northwest of the U.S. Amer. J. Potato Res. 86:315-326.

Gigot, J.A., Gundersen, B., and **Inglis, D.A. 2009. Colonization and sporulation ofPhytophthora infestans on volunteer potatoes under western Washington conditions. Amer. J. Potato Res. 86:1-14.

Inglis, D. and Gundersen, B.; and, C. Brown. 2009. Evaluation of fingerling potatoes grown by Native Americans in the Pacific Northwest for resistance to late blight, 2008. Plant Disease Management Reports 3:V058.

Inglis, D., Gundersen, B., Miles, C., Walters, T., and Roozen, J. 2009. Control of late blight caused by Phytophthora infestans on tomato cultivars using a high tunnel system, 2008. Plant Disease Management Reports 3:V057.

Inglis, D.A., Gundersen, B., Hamm, P.B. and McMoran, D. 2009. Silver scurf caused by Helminthosporium solani can be a polycyclic disease on potato tubers, below ground. Phytopathology 99:S57 (poster).

Inglis, D., Miles, C., du Toit, L. et al (PNW VEG Team), 2009. Tomato physiological leaf roll. PNW Extension Fact Sheet 616 (in press).

Miller, T.W. and C.R. Libbey. 2010. Application of paraquat can injure field-grown narcissus. HortTechnology 20:220-223.

Miller, T.W. 2009. Weeds: Managing “out of place” plants. In: Sustainable Landscapes & Gardens: good science—practical application, L. Chalker-Scott, ed. GFG Publishing, Yakima, WA.

Miller, T. 2010 (in press). Weed management. In WSU Master Gardener Handbook, Tonie Fitzgerald, ed.

Miller, T. 2009. “How do I get rid of it?” Developing weed control recommendations. B&B: The official publication of the Washington State Nursery & Landscape Association, 61:18-19.

Miller, T., A. Halpern, and C. Lucero. 2010. Identification and management of two invasive geraniums: herb robert (Geranium robertianum) and shiny geranium (G. lucidum). Proceedings, Weed Science Society of America, Denver, CO, in press.

Bolton, C., C. Miles, G. Moulton, J. Roozen, and T. Miller. 2010. Effects of cover crops and cultivation in a young organic vineyard. Proceedings, Western Society of Weed Science, Waikoloa, HI, in press.

Libbey, C. and T. Miller. 2010. Weed control using a stale seedbed method for processing cucumber and green pea. Proceedings, Western Society of Weed Science, Waikoloa, HI, in press.

Miller, T., C. Libbey, S. Shaw, and F. Lucero. 2010. Susceptibility of yellow archangel (Lamiastrum galeobdolon) to herbicides. Proceedings, Western Society of Weed Science, Waikoloa, HI, in press.