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USDA-ARS Sustainable Agricultural Systems Laboratory
Building 001, Room 245
Beltsville, MD 20705

301-504-5504 (voice), 301-504-6491 (fax)

Educational Background

1966 B.A. History, Amherst College, Amherst, MA.
1973 B.S. Biology, University of Washington, Seattle
1975 M.S. Plant Pathology, Washington State University, Pullman
1978 Ph.D. Agronomy, University of Wisconsin, Madison

Professional Career

Plant Physiologist, USDA-ARS Weed Science Laboratory, Beltsville, Maryland, 1978-1999.

Research Leader, USDA-ARS Weed Science Laboratory, Beltsville, Maryland, 1999-2000.

Research Leader, USDA-ARS Sustainable Agricultural Systems Laboratory, Beltsville, MD, 2000-present.

image of Dr. Teasdale with hairy vetch

Leadership:  Dr. Teasdale provides leadership to research programs in the Sustainable Agricultural Systems Lab. He also is the co- leader of the ARS Cover Crop Working Group developed to coordinate cover crop research across ARS locations.

Personal Research:  Dr. Teasdale conducts research for three projects: 0.5 FTE on the Weed Biocontrol Project (1265-22000-062), 0.25 FTE on the Farming System Project (1265-21660-002), and 0.25 FTE on the Cover Crops Project (1265-12210-001). Research on the Weed Biocontrol Project is focused on developing cover crop-based integrated weed management systems for sustainable production. This research also includes understanding responses of weed emergence to tillage and cover crop residues. Research on the Farming System Project involves determining weed population dynamics in these long-term plots and detailed studies of weed seed survival and weed competitiveness. Research on the Cover Crop Project supports development of cover crop management for sustainable production systems.

Publications Since 2000

Teasdale, J.R., R.W. Mangum, J.R. Radhakrishnan, and M.A. Cavigelli. 2003. Factors influencing annual fluctuations of the weed seedbank at the long-term Beltsville Farming Systems Project. Aspects Appl. Biol. 69:93-99.

Teasdale, J.R. and R.C. Rosecrance. 2003. Mechanical versus herbicidal strategies for killing a hairy vetch cover crop and controlling weeds in minimum-tillage corn production. Amer. J. Altern. Agric. 18:95-102.

Teasdale, J.R., D.R. Shelton, A.M. Sadeghi, and A.R. Isensee. 2003. Influence of hairy vetch residue on atrazine and metolachlor soil solution concentrations and weed emergence. Weed Sci. 51:628-634.

Mills, D.J., Coffman, C.B., Teasdale, J.R., Everts, K.B., and Anderson, J.D. 2002 Factors associated with foliar disease of staked fresh market tomatoes grown under differing bed strategies. Plant Dis. 86:356-361.

Mills, D.J., Coffman, C.B., Teasdale, J.R., Everts, K.B., Abdul-Baki, A.A., Lydon, J. and Anderson, J.D. 2002. Foliar disease in fresh-market tomato grown in differing bed strategies and fungicide spray programs. Plant Dis. 86:955-959.

Wu, S., Y.C. Lu, D.J. Mills, C.B. Coffman, and J.R. Teasdale. 2002. Economic evaluation of alternative production systems for fresh-market tomatoes in the mid-Atlantic region. J. Veg. Crop Prod. 8:91-107.

Abdul-Baki, A.A., J.R. Teasdale, R.W. Goth, and K.G. Haynes. 2002. Marketable yields of fresh-market tomatoes grown in plastic and hairy vetch mulches. HortScience 37:878-881.

Teasdale, J.R. 2002. Living Mulches. Pages 463-465 in D. Pimentel, ed. Encyclopedia of Pest Management. Marcel Dekker Inc., New York.

Watkins, B.W., Y.C. Lu, and J.R. Teasdale. 2002. Long-term environmental and economic simulation of alternative cropping systems in Maryland. J. Sustain. Agric. 20:61-82.

Radhakrishnan, J., S. Liang, C.J. Shuey, and J.R. Teasdale. 2002. Remote sensing of weed canopies. p. 175-202 in R.S. Muttiah (ed.) From Laboratory Spectroscopy to Remotely Sensed Spectra of Terrestrial Ecosystems. Kluwer Academic Publishers, Dordrecht, The Netherlands.

Rice, P.J., L.L. McConnell, L.P. Heighton, A.M. Sadeghi, A.R. Isensee, J.R. Teasdale, A.A. Abdul-Baki, J.A. Harman-Fetcho, and C.J. Hapeman. 2002. Comparison of copper levels in runoff from fresh-market vegetable production using polyethylene mulch or a vegetative mulch. Environmental Toxicology and Chemistry 21:24-30.

Rice, P.J., L.L. McConnell, L.P. Heighton, A.M. Sadeghi, A.R. Isensee, J.R. Teasdale, A.A. Abdul-Baki, J.A. Harman-Fetcho, and C.J. Hapeman. 2001. Runoff loss of pesticides and soil: A comparison between vegetative mulch and plastic mulch in vegetable production systems. J. Environ. Qual. 30:1808-1821.

Ziska, L.H. and J.R. Teasdale. 2000. Sustained growth and increased tolerance to glyphosate observed in a C3 perennial weed, quackgrass, grown at elevated carbon dioxide. Aust. J. Plant Physiol. 27:157-164.

Lu, Y.C., B. Watkins, J.R. Teasdale, and A.A. Abdul-Baki. 2000. Cover crops in sustainable food production. Food Rev. Internat. 16:121-157.

Teasdale, J.R., R.C. Rosecrance, C.B. Coffman, J.L. Starr, I.C. Paltineanu, Y.C. Lu, and K.B. Watkins. 2000. Performance of reduced-tillage cropping systems for sustainable grain production in Maryland. Amer. J. Altern. Agric. 15:79-87.

Rosecrance, R.C, G.W. McCarty, D.R. Shelton, and J.R. Teasdale. 2000. Denitrification and N mineralization from hairy vetch and rye cover crop monocultures and bicultures. Plant and Soil 227:283-290.

Teasdale, J.R., and C.L. Mohler. 2000. The quantitative relationship between weed emergence and the physical properties of mulches. Weed Sci. 48:385-392.

Selected older publications:

Teasdale, J.R. and A.A. Abdul-Baki. 1998. Comparison of mixtures vs. monocultures of cover crops for fresh-market tomato production with and without herbicide. HortScience 33:1163-1166.

Teasdale, J.R. 1998. Influence of corn population and row spacing on corn and velvetleaf yield. Weed Sci.46:447-453.

Teasdale, J.R. 1998. Cover crops, smother plants, and weed management. Pages 247-270. In: J.L. Hatfield, D.D. Buhler, and B.A. Stewart, eds. Integrated Weed and Soil Management. Ann Arbor Press, Chelsea, MI.

Abdul-Baki, A.A., and J.R. Teasdale. 1997. Sustainable production of fresh-market tomatoes and other summer vegetables with organic mulches. USDA-ARS Farmers' Bull. No. 2279 (Revised Aug. 1997). Click Here for On-line Article

Teasdale, J.R., and A.A. Abdul-Baki. 1997. Growth analysis of tomatoes in black polyethylene and hairy vetch production systems. HortScience 32:659-663.

Abdul-Baki, A.A., J.R. Teasdale, and R.F. Korcak. 1997. Nitrogen requirements of fresh-market tomatoes on hairy vetch and black polyethylene mulches. HortScience 32:217-221.

Teasdale, J.R. and C.S.T. Daughtry. 1993. Weed suppression by live and desiccated hairy vetch. Weed Sci. 41:207-212.

Mohler, C.L. and J.R. Teasdale. 1993. Response of weed emergence to rate of Vicia villosa Roth and Secale cereale L. residue. Weed Res. 33:487-499.

Teasdale, J.R. and C.L. Mohler. 1993. Light transmittance, soil temperature, and soil moisture under residue of hairy vetch and rye. Agron. J. 85:673-680.