Assistant Professor - Weed Science 
Office: Malheur Experiment Station
Phone: 541-889-2174
Fax: 541-889-7831
E-Mail: 
Department Website: Malheur Experiment Station
- Ph.D., Crop Production and Physiology (Weed Science), Iowa State University, Ames, IA, 1999
- M.S., Crop Production and Physiology (Weed Science), Purdue University, W Lafayette, IN, 1992
- B.S., Soil and Crop Management, Purdue University, W Lafayette, IN, 1988
- Diploma (with distinction), Crop Production, Uyole Agricultural Training Institute, Mbeya, Tanzania, 1982
- Certificate in Agriculture, Crop and Animal Prodn, Maruku Agric Training Inst., Bukoba, Tanzania, 1978
My research program focuses on development and support of weed management tactics that address grower economic growth while enhancing environmental stewardship for a viable and sustainable agriculture. I believe that understanding weed biology and ecology is a key to effective weed management in agricultural fields. Currently, we have ongoing studies on weed management in dry bulb onions, sugar beets, corn, potato, alfalfa, and dry beans in the irrigated fields of Eastern Oregon.
Weed Science Society of America (WSSA), 1992 to present
North Central Weed Science Society (NCWSS), 1992-2007
Western Society of Weed Science (WSWS), 2007 to present
American Society of Agronomy (ASA), 2008 to present
Oregon Society of Weed Science (OSWS), 2007 to present
Felix, J., J. Ivany, G. Kegode, D. Doohan. 2009. Using WeedCast Prediction Model to Determine Potato Cultivation Timing. Weed Science 57(1):87-93.
Felix, J., D. J. Doohan, and D. Bruins. 2007. Differential vegetable crop responses to Mesotrione soil residues a year after application. Crop Protection 26:1395-1403.
Ciuberkis, S., S. Bernotas, S. Raudonius, and J. Felix. 2007. Effect of Weed Emergence Time and Intervals of Weed and Crop Competition on Potato Yield. Weed Technol 21:213-218.
Felix, J., D. J. Doohan, S. C. Ditmarsen, M. E. Schultz, T. R. Wright, B. R. Flood, and T. L. Rabaey. 2005. Effect of flumetsulam plus clopyralid soil residues on potatoes (Solanum tuberosum L.), lima beans (Phaseolus limensis, L.) and snap beans (Phaseolus vulgaris L.) grown in rotation. Crop Protection 24: 790-797.
Felix, J. and D. J. Doohan. 2005. Response of Five Vegetable Crops to Isoxaflutole Soil Residues. Weed Technol 19: 391-396.
Felix, J. and M. D. K. Owen. 2004. Weed Seedbank Comparison in Conservation Reserve Program and Adjacent Fields Under Continuous Cultivation. Weed Technol. 18:45-51.
Felix, J., D. J. Doohan, S. C. Ditmarsen, M. E. Schultz, T. R. Wright, B. R. Flood, and T. L. Rabaey. 2002. Sensitivity of Sweet Corn and Potatoes to Cloransulam-Methyl Soil Residues. Crop Protection 21:763-772. Doohan, D.J,
Felix, J., J. Jasinski, C. Welty, and M. D. Kleinhenz. 2002. Insect Management and Herbicide Tolerance in Near-Isogenic Sister Lines of Transgenic and Non-Transgenic Sweet Corn. Crop Protection 21: 375-381.
Felix, J. and M. D. K. Owen. 2001. Weed Seedbank Dynamics in Post Conservation Reserve Program (CRP) Land. Weed Science 49(6): 780-787.
Felix, J. and M. D. K. Owen. 1999. Weed population dynamics in land removed from the conservation reserve program. Weed Science 47(5): 511-517.
Appa-Rao, S.; G. M. Mitawa, J. Felix, and M. H. Mengesha. 1988. Collecting pearl millet germplasm in Tanzania. Plant-Genetic-Resources-Newsletter Sep-Dec 1988 no. 75-76: 40-41.
