Jim Brosnan, Ph.D.
Associate Professor
Weed Science
Dept. of Plant Sciences
Univ. of Tennessee
252 Ellington Plant. Sci. Bldg.
2431 Joe Johnson Dr.
Knoxville, TN 37996
Phone: (865) 974-8603
Jim Brosnan, Ph.D.
Associate Professor
Turfgrass Weed Science
Dr. Brosnan is an Associate Professor in the
Plant Sciences Department at the University of Tennessee (UT) and leader of their
new Weed Diagnostics Center. His research focuses on effective and economical
strategies for broadleaf and grassy weed control in various turfgrass systems,
including golf courses, athletic fields, and residential landscapes. Recent
research has focused on exploring the issue of herbicide resistant weeds in
managed turfgrass. His extension programs aim to provide education and
diagnostic support to Tennessee’s $5.8 billion turfgrass industry.
Dr.
Brosnan serves as an advisor to the Tennessee Turfgrass Association Board of
Directors, and he is also actively involved in the Weed Science Society of America, Southern Weed Science Society, Golf Course Superintendents Association of America, and Sports Turf Managers Association. Dr. Brosnan received a B.S.
in turfgrass science from Penn State University, an M.S. in plant, soil and
insect sciences (turfgrass) from the University of Massachusetts Amherst, and a
Ph.D. in agronomy (turfgrass) from Penn State University. More information on Dr. Brosnan's program can be found here.
Greg Breeden, M.S.
Extension Specialist
Weed Science
Dept. of Plant Sciences
Univ. of Tennessee
252 Ellington Plant. Sci. Bldg.
2431 Joe Johnson Dr.
Knoxville, TN 37996
Phone: (865) 974-3248
Greg Breeden, M.S.
Extension Specialist
Turfgrass Weed Science
Greg has been a weed science extension assistant at the University of Tennessee since June 1996. He is responsible for managing all of the turfgrass and ornamental weed science field research projects at the University of Tennessee. Greg is also instrumental in the development of new turfgrass and ornamental weed science extension/educational materials at the University of Tennessee. He received both his B.S. and M.S. degrees in Plant and Soil Science (Weed Science) from the University of Tennessee.
Jose Javier Vargas
Research Associate
Weed Science
Dept. of Plant Sciences
Univ. of Tennessee
252 Ellington Plant. Sci. Bldg.
2431 Joe Johnson Dr.
Knoxville, TN 37996
Phone: (865) 974-7379
Jose Javier Vargas, MS
Research Associate
Turf & Ornamental Weed Science
Jose is a research associate responsible for all greenhouse and laboratory research projects conducted within the Turf and Ornamental Weed Science program at the University of Tennessee, particularly those focused on herbicide resistance mechanisms in weeds. Jose currently serves as the head diagnostician at the Weed Diagnostics Center.
Jose received his B.S. from the University of Puerto Rico in Agronomy and Soil Science. He participated in a wide array of plant-related research projects during his undergraduate studies, including examining native and exotic dominant forest structure, water quality analyses of wetlands in Puerto Rico, forage quality and nutrient management, ganoderma and pleurotus mushroom production, organic horticulture and postharvest physiology. He recently earned a M.S. in Plant Sciences with emphasis on Weed Science under the tutelage of Dr. Brosnan.