Jonathon Kohrt

Ph.D. Candidate
Advisor: Dr. Christy Sprague

A478 Plant and Soil Sciences Building
Department of Plant, Soil and Microbial Sciences
East Lansing, MI 48824-1325
Phone: (517) 355-0271 ext. 230
Fax: (517) 353-5174
E-mail: kohrtjon@msu.edu

Joined Department: January 2013

Education

M.S. in Plant, Soil, and Agicultural Systems, Southern Illinois University Carbondale, 2013

B.S. in Plant and Soil Science, Southern Illinois University Carbondale, 2009

Research Interests

I am interested in characterizing and determining the influence of application parameters associated with the efficacy of glyphosate in glyphosate-resistant weed species.  I am also intersted in the development and evaluation of herbicide programs for the control of glyphosate-resistant Palmer amaranth in multiple cropping systems.

Presentations

Kohrt, J. R., C. L. Sprague, and K. A. Renner. 2016. Palmer amaranth emergence, growth, and fecundity is influenced by crop. Weed Science Society of America annual meeting. San Juan, Puerto Rico. (369)

 

Kohrt, J. R. and C. L. Sprague. 2015. Residual control of multiple-resistant Palmer amaranth with soil-applied herbicides in corn. North Cantral Weed Science Society. Indianapolis, IN.

 

 

 

 

Kohrt, J. R. and C. L. Sprague. 2015. Influence of weed height on the synergism atrazine and HPPD-inhibitors in triazine-resistant Palmer amaranth. North Central Weed Science Society annual meeting. Indianapolis, IN. (139)

 

Kohrt, J. R., C. L. Sprague. Characterization of multiple-resistant Palmer amaranth in Michigan. Weed Science Society of America. Lexington, KY. (87)

*1st place Ph.D. poster*

 

 

 

 

Kohrt, J. R., C. L. Sprague, and K. A. Renner. 2014. Emergence, growth, and fecundity of Palmer amaranth in Michigan corn and soybeans. North Central Weed Science Society. Minneapolis, MN. (118)

 

 

Kohrt, J. R. and C. L. Sprague. 2014. Multiple-resistant Palmer amaranth management strategies in corn. Weed Science Society of America annual meeting. Vancouver, BC, Canada. (12)

 

 

 


Kohrt, J. R. and C. L. Sprague. 2013. Weed height and the inclusion of atrazine influence control of multiple-resistant Palmer amaranth with HPPD inhibitors. North Central Weed Science Society annual meeting. Columbus, OH.

 

 

 

 

Kohrt, J.R., G.R. Kruger, J. Reiss, B.G. Young. 2010. Interaction of nozzle type and adjuvant on droplet spectra and efficacy of glyphosate, glufosinate, glyphosate plus clethodim, and glyphosate plus mesotrione and s-metolachlor. Proc. North Cent. Weed Sci. Soc. 65:110.

Kohrt, J.R., J.L. Matthews, J.M. Young, B.G. Young. 2011. Phenotypic expression of glyphosate resistance in Amaranthus as influenced by application time of day. Proc. North Cent. Weed Sci. Soc. 66:100.

Kohrt, J.R., B.G. Young, J.L. Matthews, J.M. Young. 2012. Sensitivity of glyphosate-resistant Amaranthus to glyphosate is altered by soil applied nitrogen. Proc. Weed Sci. Soc. 67:100.