Greg Kruger

Greg Kruger

Greg Kruger

Associate Professor

B.S., Agribusiness and Applied Economics, Ohio State University, Columbus, OH., 2004

M.S., Plant Pathology, Purdue University, West Lafayette, IN., 2006

Ph.D., Weed Science, Purdue University, West Lafayette, IN., 2010

Area of Focus

Weed Science and Pesticide Application Technology

Research Interests

  • Mitigating pesticide drift
  • Maximizing pesticide applications
  • Understanding the influence of nozzles and adjuvants in pesticide applications
  • Weed management in cropping systems
  • Management of herbicide-resistant weeds
  • Distribution and frequency of herbicide-resistant weeds

Extension Interests

  • Sustainable weed management systems
  • Integrated pest management
  • Pesticide application techniques
  • Spray application technology
  • Resistance management

Publications

  • Craig B. Langemeier, Alison E. Robertson, Dong Wang, Tamra A. Jackson-Ziems, and Greg R. Kruger. 2017. Factors affecting the development and severity of Clavibacter michiganensis subsp. nebraskensis of Zea mays. Plant Disease 101:54-61.
  • Cody F. Creech, Jesaelen G. Moraes, Ryan S. Henry, Joe D. Luck, and Greg R. Kruger. The impact of droplet size on the efficacy of 2,4-D, atrazine, chlorimuron-methyl, dicamba, glufosinate, and saflufenacil. Weed Technology 30(2), 573–586.
  • Ferguson, J. C., Chechetto, R. G., Hewitt, A., Chauhan, B. S., Adkins, S. W., Kruger, G., O’Donnell, C. C. 2016. Assessing the deposition and canopy penetration of nozzles with different spray qualities in an oat (Avena sativa L.) canopy. Crop Protection 81:14–19.
  • J. Connor Ferguson, Rodolfo G. Chechetto, Andrew J. Hewitt, Bhagirath S. Chauhan, Stephen W. Adkins, Greg R. Kruger, Christopher C. O’Donnell. 2016. Assessing the deposition and canopy penetration of nozzles with different spray qualities in an oat (Avena sativa L.) canopy. Crop Protection 81:14–19.
  • Meyer, C. J., Norsworthy, J. K., Young, B. G., Steckel, L. E., Bradley, K. W., Johnson, W. G., Loux, M. M., Davis, V. M., Kruger, G., Bararpour, M. T., others. 2016. Early-Season Palmer Amaranth and Waterhemp Control from Preemergence Programs Utilizing 4-Hydroxyphenylpyruvate Dioxygenase-Inhibiting and Auxinic Herbicides in Soybean. Weed Technology, 30(1):67–75.
  • M. Liakat Ali, J. Luetchens, A. Singh, Timothy Shaver, Greg R. Kruger, and Aaron J. Lorenz. 2016. Greenhouse screening of maize genotypes for deep root mass and related root traits and their association with grain yield under water-deficit conditions in the field. Euphytica 207(1):79–94.
  • Baenziger, P., Graybosch, R., Regassa, T., Klein, R., Kruger, G., Santra, D., Xu, L., Rose, D., Wegulo, S., Jin, Y., others. 2016. Registration of ‘NE05548’(Husker Genetics Brand Panhandle) Hard Red Winter Wheat. Journal of Plant Registrations.
  • Sarkar, S., Kamin, S., Greg R. Kruger. 2016. Spray Characterization by Optical Image Anaylsis. Journal of ASTM 36:162-182. http://dx.doi.org/10.1520/STP159520160036.
  • Schwartz, L. M., Norsworthy, J. K., Young, B. G., Bradley, K. W., Kruger, G., Davis, V. M., Steckel, L. E., Walsh, M. J. (2016). Tall Waterhemp (Amaranthus tuberculatus) and Palmer amaranth (Amaranthus palmeri) Seed Production and Retention at Soybean Maturity. Weed Technology, 30(1):284–290.
  • M. Liakat Ali, Jon Luetchens, Amritpal Singh, Timothy M. Shaver, Greg R. Kruger, and Aaron J. Lorenz. 2015. Genetic variation in seminal and nodal root angle and their association with grain yield of maize under water-stressed field conditions. Plant and Soil 397(1).
  • Cody F. Creech, Ryan S. Henry, Rafael Werle, Lowell D. Sandell, Andrew J. Hewitt and Greg R. Kruger. 2015. Performance of post-emergent herbicides applied at different carrier volume rates. Weed Technology 29(3).
  • Ryan S. Henry, Bradley K. Fritz, W. Clint Hoffmann, and Greg R. Kruger. 2016. The influence of nozzle type, operating pressure, and tank-mixture components on droplet characteristics and the EPA’s drift reduction rating. Journal of the Association of Standard Test Methods 36:149-161.
  • Sounak Sarkar, Surya Kamin, and Greg R. Kruger. 2016. Spray characterization by optical image analysis. Journal of the Association of Standard Test Methods 36:162-182.
  • Fernando K. Carvalho, Ulisses R. Antuniassi, Rodolfo G. Chechetto, Alisson A. B. Mota, and Greg R. Kruger. 2016. Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil. Journal of the Brazilian Association of Agricultural Engineering 36(6):1118-1125.
  • Fernando K. Carvalho, Ulisses R. Antuniassi, Rodolfo G. Chechetto, Alisson A. B. Mota, and Greg R. Kruger. 2016. Knowledge on adjuvant properties, disposal of pesticide residues and spray drift occurrence in the state of Mato Grosso. Journal of the Brazilian Association of Agricultural Engineering 36(2):352-360.
  • Zahoor A. Ganie, Lowell D. Sandell, Mithila Jugulam, Greg R. Kruger, David B. Marx, and Amit J. Jhala. 2016. Integrated management of glyphosate-resistant giant ragweed (Ambrosia trifida) with tillage and herbicides in soybean. Weed Technology 30:45-56.
  • Christopher J. Meyer, Jason K. Norsworthy, Greg R. Kruger, and Tom Barber. 2016. Effect of nozzle selection and spray volume on droplet size and efficacy of Engenia tank-mix combinations. Weed Technology 30:401-414.
  • homas R. Butts, Jason K. Norsworthy, Greg R. Kruger, Lowell D. Lowell, Bryan G. Young, Lawrence E. Steckel, Mark M. Loux, Kevin W. Bradley, Shawn P. Conley, David E. Stoltenberg, Fransico J. Arriaga, Vince M. Davis. 2016. Management of pigweed (Amaranthus spp.) in glufosinate-resistant soybean in the Midwest and Mid-South. Weed Technology 30:355-365.
  • J. Connor Ferguson, Roch E. Gaussoin, John A. Eastin, Matthew D. Sousek, and Greg R. Kruger. 2016. Efficacy of pre and postemergence herbicides on weed suppression in established turfgrass with a conventional and an ultra-low volume sprayer. Crop Protection 89:72-77.
  • J. Connor Ferguson, Roch E. Gaussoin, John A. Eastin, Matthew D. Sousek, and Greg R. Kruger. 2016. Comparison of an ultra-low volume (ULV) sprayer against a conventional sprayer, for foliar fertilizer and fungicide applications in turfgrass. Crop Protection 56(1):54-59.
  • Laura A. Chatham, Kevin W. Bradley, Greg R. Kruger, James R. Martin, Micheal D. K. Owen, Dallas E. Peterson, Jugulam Mithila, Patrick J. Tranel. 2015. A multi-state study of the association between glyphosate resistance and EPSPS gene amplification in waterhemp (Amaranthus tuberculatus). Weed Science 63:569-577.
  • Christopher J. Meyer, Jason K.Norsworthy, Greg R. Kruger, and Thomas Barber. 2015. Influence of droplet size on efficacy of the formulated products Enenia™, Roundup PowerMax®, and Liberty®. Weed Technology 29:641-652.
  • Christopher J. Meyer, Jason K. Norsworthy, Bryan G. Young, Laurence E. Steckel, Kevin W. Bradley, William G. Johnson, Mark M. Loux, Vince M. Davis, Greg R. Kruger, Mohammad T. Bararpour, Joseph T. Ikley, Doug J. Spaunhorst, and Thomas R. Butts. 2015. Herbicide program approaches for managing glyphosate-resistant Palmer amaranth (Amaranthus palmeri) and waterhemp (Amaranthus tuberculatus and Amaranthus rudis) in future soybean-trait technologies. Weed Technology 29:716-729.
  • J. Connor Ferguson, Chris C. O’Donnell, Bhagirath S. Chauhan, Steve W. Adkins, Greg R. Kruger, Ruobing Wang, Pedro H. Urach Ferreira, and Andrew J. Hewitt. 2015. Determining the uniformity and consistency of droplet size across spray drift reducing nozzles in a wind tunnel. Crop Protection 76:1-6.
  • Cody F. Creech, Ryan S. Henry, Bradley K. Fritz and Greg R. Kruger. 2015. Influence of herbicide active ingredient, nozzle type, orifice size, spray pressure, and carrier volume rate on spray droplet size characteristics. Weed Technology 29(2):298-310.