Montana State University

Southern Agricultural Research Center

"Serving the Land Grant Mission in South Central Montana"

Research Centers

Dr. Prashant Jha

  • Education

    • Ph. D. Plant and Environmental Sciences, 2008, Clemson
    • M.S. Agronomy, 2003, CCS Haryana Agric. Univ. India
    • B.S. Agriculture, 2001, CCS Haryana Agric. Univ., India

Current Research Projects    

Herbicide Resistance


Brief Description

"Survey and confirmation of herbicide-resistant weed biotypes including the first confirmation glyphosate-resistant kochia in MT; Investigate physiological/molecular mechanisms of herbicide resistance, including glyphosate-resistant kochia; Research on inheritance and ecological fitness of herbicide-resistant weed biotypes; Develop IWM strategies for management of herbicide resistance, with major emphasis on wheat-fallow and glyphosate-resistant cropping systems"

Recent Publications

  • "Jha, P., Kumar, V. and Reichard, N." . 2015. Annual Changes in temperature and Light Requirements for Ipomoea purpurea Germination in the Field Following Dispersal. Crop Protection. 67:84-90.
  • "P.Jha, V. Kumar, J. Garcia, and N. Reichard*" . 2015. Tank-Mixing Pendimethalin with Pyroxasulfone and Chloroacetamide Herbicides Enhances In-Season Residual Weed Control in Corn. Weed Technol. In press.
  • V. Kumar and P. Jha . 2015. "Influence of herbicides applied postharvest in wheat stubble on control, fecundity, and progeny fitness of Kochia scoparia in US Great Plains.". Crop Protection. In press..
  • "Kumar, V., P. Jha, and N. Reichard" . 2014. Occurence and Charecterization of Glyphosate-Resistant Kochia in Montana. Weed Technol. 28:122-130.
  • "Jha, P., J. K. Norsworthy, and J. Garcia" . 2014. Depletion of an Artificial Seed Bank of Palmer Amaranth (Amaranthus palmeri) over Four Years of Burial. Am. J. Plant Sci. 5:1599-1606.
  • "Kumar, V. and Jha, P." . 2014. Effective Preemergence and Postemergence Herbicides for Kochia Control. Weed Technol. In Press.
  • "Kumar, V. and Jha, P." . 2014. Control of Volunteer Glyphosate-Resistant Canola in Glyphosate-Resistant Sugar Beet. Weed Technol. In press..
  • Jha. P. and R. E. Stougard . 2013. Camelina tolerance to selected preemergence herbicides. Weed Technol. 27:712-717.
  • Jha. P. and J. K. Norsworthy . 2012. "Influence of Late-Season Herbicide Applications on Control, Fecundity, and Progeny Fitness of Glyphosate-Resistant Palmer Amaranth Biotypes from Arkansas.". Weed Technol. 26:807-812..
  • "Bagavathiannan, M.V., J.K. Norsworthy, P. Jha, and K. L. Smith" . 2011. Does resistance to propanil or clomazone alter the growth and competitive abilities of barnyardgrass (Echinochloa crus-galli) ?. Weed Sci. 59:353-358.
  • "Norsworthy, J. K., D. Riar., P. Jha, and R. C. Scott" . 2011. "Confirmation, control, and physiology of glyphosate-resistant giant ragweed in Arkansas". Weed Technol. 25:430-435.
  • "Jha, P. and J. K. Norsworthy" . 2010. Cyhalofop application timing and adjuvant selection for Echinochloa crus-galli control in rice. Crop Protection. 29:820-823.
  • "Jha, P. and J. K. Norsworthy" . 2010. Annual changes in temperature and light requirements for germination of Palmer amaranth (Amaranthus palmeri) seeds retrieved from soil. Weed Sci. 58:426-432.
  • "Norsworthy, J. K., P. Jha, L. E. Steckel, and R. C. Scott." . 2010. Confirmation and control of glyphosate-resistant giant ragweed in Tennessee. Weed Technol. 24:64-70.
  • "Jha, P., K. McVay, A. Varanasi, and V. Kumar" . 2013. Glyphosate-Resistant Kochia in Montana: Herbicide Recommendations and Best Management Practices for Growers. 4602. Montana State University Extension Research Bulletin
  • "Jha, P. and V. Kumar" . 2013. Effect of Fertilizer N on Crop-Weed Interactions in Montana Cereal Production. 64. Montana State University Extension Ag. Experiment Station

Recent Grants

  • Efficacy and economics of mechanical and cultural practices for herbicide resistance management. "Kniss, A., Jha, P. Wilson, W." . Funded by USDA-NIFA. 2014. $500000
  • Ecological Fitness and Molecular Mechanisms of Multiple Herbicide Resistance in Kochia. P. Jha . Funded by Montana Wheat and Barley Committee. 2014. $63000
  • WeedSeeker: Precision Weed Control and Reduced Herbicide Use in Chem-Fallow. "Jha, P" . Funded by Montana Wheat. 2014. $15000
  • MAES equipment Grant. P. Jha . Funded by MSU-Bozeman College of Agriculture. 2014. $15000
  • "Survey of glyphosate, ALS, and dicamba-resistant kochia in Montana". Jha. P. . Funded by Montana Wheat and Barley Committee. 2013. $30000
  • WeedSeeker Technology for Reduced Herbicide Use in No-Till Fallow. Jha. P. and O. Walsh . Funded by Montana Wheat and Barley Committee. 2013. $15000
  • MAES Equpment Grant. P. Jha . Funded by MSU-Bozeman. 2013. $16200
  • Influence of glyphosate timing on kochia cohorts in glyphosate-resistant sugar beet.. P.Jha. . Funded by Western Sugar Cooperative. 2012. $10000
  • Effect of Fertilizer Nitrogen on Weed Control and Crop-Weed Competition in Montana Cereal Production. "Jha, P." . Funded by Montana Fertilizer Committee. 2011. $63000
  • Optimizing management practices to minimize weed and pathogen impact in wheat. "Menalled, F., Jha, P., Burrows, M., Miller. Z" . Funded by Montana Wheat and Barley Committee. 2011. $21500
  • Physiological and Ecological Evaluation of Metabolism-Based Herbicide Resistance in wild oat. "Dyer, W., Menalled, F., Jha, P., Burrows, M., Sterling, T" . Funded by USDA -Strategic Agricultural Initiative. 2010. $50000