Wei Qiang Yang
Associate Professor, Berry Crops Extension Agent

My responsibility is to provide leadership for the blueberry education program in the North Willamette District where the most of the state’s blueberry industry is concentrated. I also conduct applied research in blueberry production systmes to support my extension activities. 

Department of Horticulture
North Willamette Research and Extension Center
15210 NE Miley Rd
Aurora, OR 97002
United States
(503) 678-1264 x126

Research

Current projects:

1. Blueberry rootstock propagation, evaluation, and rootstock/cultivar interactions

  • TC protocol development for V. arboreum (with North American Plants LLC)
  • V. arboreum seedling field performance evaluation
  • Rootstock and cultivar interactions (with UF and UC Kearney Ag Center)

2. Spotted wing drosophila (SWD) control in berry crops

  • Insecticides deliver methods via helicopter and micro-spray system (with WSU)
  • Attractants evaluation and field sanitation in blueberries
  • Alternative row and border spray (graduate student project)
  • SWD marking and dispersal study (graduate student project)

Biography

Education
Ph.D., Horticulture, Penn State University, 1999
M.S., Horticulture, Penn State University, 1996
B.S., Plant Physiology, Northwest University, PRC, 1986

Professional experience
2006-present Associate Professor, Oregon State University, North Willamette Research and Extension Center
2001-2006 Assistant Professor, Oregon State University, North Willamette Research and Extension Center
1999-2001 Research Associate, Boyce Thompson Institute for Plant Research at Cornell University
1993-1999 Graduate Research/teaching Assistant, Pennsylvania State University, Department of Horticulture
1992-1993 Researcher, Shaanxi Fruit Crops Research Center, P.R. China
1990-1991 Visiting fellow, USDA - ARS, Appalachian Fruit Research Station
1986-1990 Researcher, Shaanxi Fruit Crops Research Center, Xi'An, P. R. China
 

I accept graduate students for Horticulture

Outreach and Extension

My extension activities include SWD education, field visits, giving presentations at grower meetings and field days, publishing newsletters and extension materials, and serving as editor and webmaster for the berrygrape.org website. I organize three berry events annually.

Publications

Extension

J. DeFrancesco, J. Pscheidt, G. Fisher, and Yang, W.Q.  2009-present.  Blueberry pest management guide for the Willamette Valley.  Oregon State University Extension Publication.  EM8538.

Julian, J., B. Strik, E. Pond, and W. Yang. 2011. Blueberry economics. The costs of establishing and producing organic blueberries in the Willamette Valley. AEB 0023. July 2011. 

Julian, J., B. Strik, and W. Yang. 2011. Blueberry economics. The costs of establishing and producing blueberries in the Willamette Valley. AEB 0022. April 2011. 

Yang, W.Q., J. Pscheidt, G. Fisher, and J. DeFrancesco.  2008-2002.  Blueberry pest management guide for the Willamette Valley.  Oregon State University Extension Publication.  EM8538.

John Hart, Bernadine Strik, Linda White, and Wei Yang.  2006.  Nutrient management for blueberries in Oregon.   Oregon State University Extension Publication.  EM8918.

Yang, W.Q. 2005.  Blueberry gall midge-a new pest in the northwest: identification, life cycle, and plant injury.  Oregon State University Extension Publication.  EM 8889. 

Eleveld, B., B. Strik, K. DeVries, and W.Q. Yang. 2005. Blueberry economics. The costs of establishing and producing blueberries in the Willamette Valley. EM 8526.  41 pp.

Yang, W.Q. Incorrect soil pH for blueberries.  2003 PNW Plant Disease Management Handbook.  Pp.108.

 

Peer-reviewed

Bautista, N. and W.Q. Yang.  2012.  Evaluation of postharvest quality of three commercial blueberry (Vaccinium corymbosum) cultivars stored in two different types of clamshells.  Int. J. of Fruit Sci.  12:75-82

Bryla, D.R., R.G. Linderman, and W.Q. Yang.  2008.  Incidence of Phytophthora and Pythium infection and the relation to cultural conditions in commercial blueberry fields.  HortScience.  43:260-263.

Yang, W.Q., M. Tien, and B.L. Goulart.  2006.  Characterization of extracellular proteases produced by four ericoid mycorrhizal fungi in pure culture and in symbiotic states.  Acta Horticulturae.  715:403-410.

Yang, W.Q.  Blueberries in the Northwest.  2005.  In:  Blueberries – For growers, Gardeners, and Promoters.  Editors: Norman F. Childers and Paul M. Lyrene.  Dr. Norman F. Childers Horticultural Publications.  Gainesville, FL.  Pp. 206-208.

Li, Y., W.Q. Yang, Z. Zhang, and W. Lin.  Blueberries in China.  2005.  In:  Blueberries – For growers, Gardeners, and Promoters.  Editors: Norman F. Childers and Paul M. Lyrene.  Dr. Norman F. Childers Horticultural Publications.  Gainesville, FL.  Pp. 243-247.

Yang, W.Q. and Q. Gao.  2005. Raspberry production and markets in China.  Small Fruits Review. 4(4):32-36.

Scagel, C. and W.Q. Yang. 2005.  Cultural variation and mycorrhizal status of blueberry plants in NW Oregon commercial production fields.  International Journal of Fruit Science.  5:85-111.

Yang, W.Q., R. Murthy, P. King, and M.A. Topa.  2002.  Diurnal changes in gas exchange and carbon partitioning in needles of fast- and slow-growing families of loblolly pine (Pinus taeda).  Tree Phys.  22:489-498

Yang, W.Q., B.L. Goulart, K. Demchak and Y. Li.  2002.  Interactive effects of mycorrhizal inoculation and organic amendment on nitrogen acquisition and growth of highbush blueberries.  J. Amer. Soc. Hort. Sci. 127:742-748

Yang, W.Q. and B.L. Goulart. 2000. Effect of mycorrhizal infection on short-term aluminum uptake and root cation exchange capacity (CEC) of highbush blueberry plantlets. HortScience   35:1083-1086.

Yang, W.Q., B.L. Goulart and K. Demchak. 1998. Mycorrhizal infection and plant growth of highbush blueberry in fumigated soil following soil amendment and inoculation with mycorrhizal fungi. HortScience. 33:1136-1137.

Goulart, B.L., K. Demchak and W.Q. Yang. 1998. Highbush blueberry root systems: cultural management effects on root system development and mycorrhizal infection intensity. 8th North Amer. Blueberry Res. Ext. Workers Con. NC State. May, 1998.

Yang, W.Q. and B.L. Goulart. 1997. Aluminum and phosphorus interactions in mycorrhizal and nonmycorrhizal highbush blueberry plantlets. J. Amer. Soc. Hort. Sci. 122:24-30.

Yang, W.Q., B.L. Goulart and K. Demchak. 1996. The effect of aluminum and media on the growth of mycorrhizal and nonmycorrhizal highbush blueberry plantlets. Plant and Soil. 183:301-308.

Goulart, B.L., K. Demchak and W.Q. Yang. 1996. Effect of cultural practices on field grown 'Bluecrop' highbush blueberries, with emphasis on mycorrhizal infection levels. Acta Horticulturae. 46:271-278.

Stevens, C.M., B.L. Goulart, Y. Dalpe, J.F. Hancock, K. Demchak and W.Q. Yang. 1996. The presence, isolation, and characterization of ericoid mycorrhizal symbionts in 2 native and 2 commercial Vaccinium populations in central Pennsylvania. Acta Horticulturae. 46:411-420.

Goulart, B.L., W.Q. Yang and K. Demchak. 1995. Development of an inoculation system for studying mycorrhizal effects in highbush blueberry. J. Small Fruit Vitic. 3:193-201.

Goulart, B.L., K. Demchak and W.Q. Yang. 1995. Organic matter and nitrogen level effects on mycorrhizal infection in 'Bluecrop' highbush blueberry plants. J. Small Fruit Vitic. 3:151-164.

Yang, W.Q. and D.M. Glenn.  1994. Interactions between vegetative and floral buds in apple and peach. HortScience. 29:310-312.