Dr. Greg Johnson

Professor, Veterinary Entomologist

Montana State University - Bozeman

Bozeman, MT 59717

Phone: (406) 994-3875; FAX: (406) 994-5589



B.S. Eastern Mennonite University (Virginia), Biology

M.S. University of Wyoming, Entomology

Ph.D. University of Wyoming, Entomology


ANSC 410 Veterinary Entomology (2003 – 2015)

Research Interests

  • Epidemiology studies of vector-borne animal pathogens (bluetongue, West Nile virus, vesicular stomatitis) of domestic livestock and wildlife
  • Management of economically important livestock pests. 

Collaborators include: MSU, USDA ARS, Carroll College, Chief Dull Knife College, Fort Belknap College, and Little Big Horn College, and Private Industry.

Refereed Publications

Rolston, M., G. Johnson, G. Hokit. 2016. A taxonomic checklist of the mosquitoes of Montana with notes on new geographic distributions. J. American Mosq. Control Assoc. 32(4): [in print].

Otranto, D., G. Johnson, K. Syvrud, S. Yoon, J. Hunter and S. Rehbein. 2016. Treatment and control of bovine hypodermosis with ivermectin long-acting injection (IVOMEC® GOLD). Parasites & Vectors. 551. DOI: 10.1186/s13071-016-1823-8.

Zuliani A., A. Massolo, T. Lysyk, G. Johnson, S. Marshall, K. Berger, S.Cork. 2015. Modelling the northward expansion of Culicoides sonorensis (Diptera: Ceratopogonidae) under future climate scenarios. PLOS ONE. DOI: 10.1371/journal.pone.0130294.

Johnson, G., C. Bahnson, P. Ishii, Z. Cochrane, G. Hokit, P. Plummer, L. Bartholomay, B. Blitvich. 2014.  Monitoring sheep and Culicoides midges for evidence of Bunyamwera serogroup virus infection. Vet. Open Rec. Vet Rec. Open. 0:e000071. doi:10.1136/vetreco-2014- 000071.

Friesen, KM and GD Johnson. 2014. Mosquito and West Nile virus surveillance in northeast Montana, 2005-2006.  Medical Veterinary Entomology.  28: 85-93.

Hokit, G., S. Alvey, J. Geiger, G. Johnson, M. Rolston, D. Kinsey, N. Tall Bear. 2013. Using undergraduate researchers to build vector and West Nile virus surveillance capacity. In. J. Environ. Res. Public Health. 10: 3192-3202.

Johnson, G. D., H. B. Goosey, M. G. Rolston, W. L. Miller, D. G. Hokit, R. R. Redden, and R. Kott. 2013. Evaluation of Mosquito Responses to Pyrethroid Insecticides Topically Applied to Sheep.  J. Amer. Mosquito Control Assoc. 29: 146-153.

Friesen, KM and GD Johnson. 2013. Stable fly (Diptera: Muscidae) phenology in a mixed   agricultural-wildlife ecosystem in northeast Montana.  Environ. Entomol. 42(1): 49-57.

 Friesen K. M. and G. D. Johnson.  2012.Reproductive Potential of Stable Flies (Diptera: Muscidae) Fed Cattle, Chicken, or Horse Blood. J. Medical Entomology. 49:461-466.

Scott, J., C. Leichter, F. Rinkevica, S. Harris, C. Su, L. Aberegg, R. Moon, C. Geden, A. Gerry,D. Taylor, R. Byford, W. Watson, G. Johnson, D. Boxler, L. Zurek. 2013. Insecticide resistance in house flies from the United States: Resistance levels and frequency of pyrethroid resistance alleles. Pest. Biochem. Physiol. 107: 377-384.

Grants and Contracts

104 external grants from state and federal agencies, and private industry totaling >$5,000,000