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Jim Brosnan.jpgJim 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
  
Twitter: @UTturfweeds  
 
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 Associationof 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

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Greg-Breeden.jpgGreg 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

 

 

 
Twitter: @gbreeden1
 

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.


 


 


 


 


 

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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.  A major emphasis of Jose's work is to assist stakeholders in diagnosing the presence of resistance mechanisms in weeds. 

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.


 


 


 

Farnsworth headshot.jpgDaniel Farnsworth
Research Specialist
Weed Science
 
Dept. of Plant Sciences
Univ. of Tennessee
252 Ellington Plant. Sci. Bldg.
2431 Joe Johnson Dr.
Knoxville, TN 37996
Phone: (865) 974-7492
 
  
Twitter: @4K_turf
Daniel Farnsworth
Research Specialist
Turf & Ornamental Weed Science

Daniel joined the turfgrass weed science team as a student worker in August 2010 and has since moved up to the level of Research Specialist. Daniel is responsible for ensuring all maintenance pesticide and fertility applications are applied to the turfgrass weed science research plots at the East Tennessee Research and Education Center. Additionally, Daniel assists with research sprays and data collection in the field. Since joining the team, Daniel has earned his associate’s degree in Business Management and is currently working on a B.S. degree in Turfgrass Management from the University of Tennessee​​

 

 
 

 
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