David Y. Han Assistant Professor Extension Specialist, Turfgrass Management  Department of Agronomy and Soils 252 Funchess Hall Auburn University, AL 36849-5412 334-844-3980 334-844-3945 (Fax) dhan@acesag.auburn.edu AU Turfgrass Page

Areas of interest:

    Education and research into integrated approaches for turfgrass establishment and management.  Use of turfgrasses for erosion control, sports fields, golf, other recreation and home lawns.  Environmentally sound management of turfgrass disease, insect and weed pests.

    As an extension specialist, my responsibilities include keeping the public informed of the latest developments in turfgrass management practices.  I provide support and training for county extension agents in turf related areas and publish fact sheets, bulletins, timely information sheets, Web publications and articles for industry publications and mass media on current topics in turf.   I also develop and maintain educational programs for the golf course superintendent, sod farmer, athletic field or park groundskeeper, professional lawn care provider, homeowner and other turf managers.  Examples of this are serving as the educational advisor to the Alabama Turfgrass Association, conducting the lawn care training portions of the Master Gardener and Certified Nurseryman programs, speaking to educational sessions of the Golf Course Superintendents Association chapters of Alabama and participating in Extension field days and seminars on turfgrass management.  My extension program includes conducting applied research to develop more effective and environmentally friendly turfgrass management techniques for use in the turf industry with an emphasis on reducing the use of high-risk pesticides.  I also teach Agronomy 6150, Advanced Turfgrass Management, for students interested in careers in the turf industry.

Education:

•     Ph.D.   The Ohio State University, 1999
•     M.S.     Cornell University, 1994
•     B.A.     Cornell University, 1991

•    2000 - Present:    Assistant Professor and Extension Specialist, Dept. of Agronomy and Soils, Auburn University
•     1999 - 2000:        Postdoctoral Researcher, Dept. of Plant Pathology, The Ohio State University

•     American Society of Agronomy
•     American Phytopathological Society
•     Alabama Turfgrass Association
•     Alabama Extension Specialists Association
•     Golf Course Superintendents Association of America
  

Recent Publications:

    Refereed journals

• Hoitink, H.A.J., M. S. Krause and D. Y. Han.  2001.  Spectrum and mechanisms of plant disease control with composts.  Pp. 263-273 In: Compost utilization in horticultural cropping systems.  D.J. Stoffella and B.A. Kahn, Eds.  Lewis Publishers: Washington, DC.  414pp.

• Han, D.Y. , J. W. Rimelspach and M.J. Boehm. 2000.  Evaluation of Pseudomonas aureofaciens TX-1 for control of dollar spot on creeping bentgrass.  Biological and Cultural Tests for Control of Plant Diseases 15:48-49.
  

• Han, D.Y., Coplin, D.L., Bauer, W.D., and Hoitink, H.A.J.  2000.  A rapid bioassay for screening rhizosphere microorganisms for their ability to induce systemic resistance.  Phytopathology 90:327-332.

• Zhang, W., Han, D.Y., Dick, W.A., Davis, K.R., and Hoitink, H.A.J.  1998.  Compost and compost water extract-induced systemic acquired resistance in cucumber and Arabidopsis.  Phytopathology 88:450-455

• Hoitink, H.A.J., Stone, A.Y., and Han, D.Y.  1997.  Suppression of plant diseases by composts.  Hortscience 32: 182-187.

• Raciborski, M.A. and D.Y. Han.  2003.  Seeded bermudas gain ground.  Turfgrass Trends 12(1): 1-3

• Han, D.Y. 2002.  Practical tips for a weed-free lawn.  Alabama Gardener, April 2002

• Han, D., S. Davis, J.B. Unruh, and P. Colbaugh.  Update on control of dollar spot on TifEagle putting greens.  Tee to Green, Winter 2002.
  

• Han, D.Y  2002.  Integrated Pest Management.  Alabama Turfgrass Association Turf Times 22(2): 3-4

• Han, D.Y. and E.A. Guertal.  2002.  Biological control of turfgrass pests.   Alabama Turfgrass Association Turf Times 22(2): 13-15.
  

• Guertal, E.A. and D.Y. Han. 2002. Best Management Practices for Alabama Sod Production.  Alabama Agricultural Experiment Station: Auburn, AL.  71pp.

• Guertal, E.A. and D.Y. Han, Eds. 2002.  Best Management Practices for Golf Courses.  Alabama Department of Environmental Management, Alabama Cooperative Extension System, Alabama Agricultural Experiment Station: Auburn, AL.  

• Guertal, E. and D. Han. 2002.  Fans and syringing for cooling creeping bentgrass putting greens.  Golf Course Management 70(7): 57-60

• Guertal, E. and D. Han. 2002.  Does Aerification help solve compaction problems?  Turfgrass Trends 11(2): 4-5.

• Han, D.Y. 2001.  Seeded bermudagrasses and zoysiagrasses.  Alabama Turfgrass Association Turf Times 21(2): 3-6

• Han, D.Y.  2001.  Does Heritage cause dollar spot?  Alabama Turfgrass Association Turf Times 21(1): 7-8
  

• Han, D.Y. and Boehm, M.J.  2000.  Biological control of dollar spot of golf courses using Pseudomonas aureofaciens TX-1 delivered via the BioJect.  OTF News, Spring 2000.

• Han, D.Y, J.B. Unruh and L.E. Trenholm.  2002.  Cooperative extension and the private consultant: what is the impact on the turfgrass industry?  In Annual Meetings Abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI

• Colbaugh, P.A., D.Y. Han, J.B. Unruh, S.D. Davis. 2002.  Using regional fungicide and nutrient efficacy studies to make recommendations for curative control of dollar spot on bermudagrass putting greens.  In Annual Meetings Abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI

• Raciborski, M.A. and D.Y. Han.  2002.  Suitability of seeded bermudagrasses for use on athletic fields.  In Annual Meetings Abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI

• Han, D.Y and E.A. Guertal.  2001. Fans and Syringing effects on bentgrass putting greens. In Annual Meetings Abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI

• Han, D.Y. , B. F. Parisi and M.J. Boehm. Field evaluation of Pseudomonas aureofaciens TX-1.  Phytopathology 90:S33
  
  

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