Joseph P. Yenish
Associate Scientist / Extension Specialist
173 Johnson Hall
PO Box 646420
Pullman WA 99164-6420
Phone 509-335-2961
FAX 509-335-1758
yenish@wsu.edu
Education
B.S. North Dakota State University 1981
M.S. University of Wisconsin-Madison, 1990
Ph.D. North Carolina State University, 1994
Curriculum Vitae, April 2006 (pdf)
Research and Extension Activities
My focus has been on weed management in the dryland cereal grain production systems of eastern Washington. Problem weeds in these systems include downy brome, jointed goatgrass, cereal rye, wild oat, Italian ryegrass, Russia thistle, prickly lettuce, mayweed chamomile, and other species. Herbicide resistant weed biotypes are also a growing problem within the cropping systems of eastern Washington. Extension programming has focused on developing methods of addressing these and other weed problems of the area. Additionally, a great deal of my time is spent developing weed management systems for the grain legumes (dry peas, lentils, and chickpeas).
My research has largely focused on the biology, ecology, and integrated management of annual grass weeds. Progress has been made in integrated weed management in conservation tillage systems both prior and after crop planting. An additional focus has been to research the potential development of herbicide resistant weeds in systems using herbicide-resistant crops.
Related Page
http://css.wsu.edu/weed_science
Research Publications
Rainbolt, C. R., D. C. Thill, J. P. Yenish, and D. A. Ball. 2004. Herbicide-resistant grass weed development in imidazolinone-resistant wheat: weed biology and herbicide rotation. Weed Technol. (18:860-868).
Yenish, J. P. and F. L. Young. 2004. Winter wheat competition against jointed goatgrass as influenced by wheat plant height, seeding rate, and seed size. Weed Sci. (52:996-1001).
Ball, D. A., J. P. Yenish, and T. Alby III. 2003. Effect of imazamox soil persistence on dryland rotational crops. Weed Technol. (17:161-165).
Young, F. L., J. P. Yenish, D. L. Walenta, and D. A. Ball. 2003. Spring-germinating jointed goatgrass produces viable spikelets in spring seeded wheat. Weed Sci. (51:379-385)
Walenta, D. L., J. P. Yenish, F. L. Young, and D. A. Ball. 2002. Vernalization response of plants grown from spikelets of spring and fall cohorts of jointed goatgrass. Weed Sci. (50:461-465)
Yenish, J. P. and N. A. Eaton. 2002. Weed Control in Field Peas (Pisum sativum) Under Conventional and No-Tillage Systems. Weed Technol. (16:88-95)
Yenish, J.P. and F.L. Young. 2000. Effect of preharvest glyphosate application on seed and seedling quality of spring wheat (Triticum aestivum). Weed Technol. (14:212-217)
Extension Publications
William, R. D., A. G. Dailey, D. A. Ball, J. Colquhoun, T. L. Miller, R. Parker, J. P. Yenish, T. W. Miller, D. W. Morishita, and P. J. S. Hutchninson. 2005 Pacific Northwest Weed Control Handbook. MISC0049, 412pp.
Steiner, C. M., G. Newberry, R. Boydston, J. Yenish, and R. Thornton. 2005. Volunteer Potato Management in the Pacific Northwest Rotational Crops. EB1993, 12pp.
Rainbolt, C., D. Ball, D. Thill, and J. Yenish. 2004. Management Strategies for Preventing Herbicide Resistant Grass Weeds in Clearfield Wheat Systems. PNW0572, 8pp.
Turner, W. J., J. Yenish, R. F. Line, and X. Chen. 2001. Crop Profile for Barley in Washington. MISC0673E. 20 pp.
Yenish, J. P. and M. Stannard. 1998. Weed management for cover establishment and maintenance on conservation reserve program acres. Washington State University Cooperative Extension. EB1867, 21pp.
Yenish, J. P., R. Veseth, A. Ogg, D. Thill, D. Ball, F. Young, E. Gallandt, D. Morishita, C. Mallory‑Smith, D. Wysocki, and T. Gohlke. 1998. Managing downy brome under conservation tillage systems in the Inland Northwest cropping region. Pacific Northwest Cooperative Extension. PNW0509, 15pp.
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