Dr. Justin McMechan

Justin's photo

Dr. Justin McMechan

Rank: Assistant Professor
Area: Crop Protection and Cropping Systems
Appointment: Extension and Research
Location: Eastern Nebraska Research, Extension and Exducation Center, Ithaca, Nebraska

Email: justin.mcmechan@unl.edu


Appointment: 50% Extension, 50% Research

  1. B.S. in Agronomy, University of Minnesota, Crookston, 2009
  2. M.S. in Entomology, University of Nebraska, Lincoln, 2012
  3. D.P.H. Doctor of Plant Health, University of Nebraska, Lincoln, 2016
  4. Ph.D. in Entomology, University of Nebraska, Lincoln, 2016
Professional Responsibilities and Activities
  • Development and implementation of an applied research program focused on integrated crop protection and cropping systems
  • Establish transdisciplinary collaborations including effective integration with extension issue teams and research groups
  • McMechan, A. J. 2021. Evaluation of at-plant soil treatment thimet against soybean gall midge, 2020. Arthropod Management Tests. Accepted.
  • McMechan, A. J., E. Hodgson, A. J. Varenhorst, T. Hunt, R. Wright, and B. Potter. 2021. First report of a new species, Resseliella maxima (Diptera: Cecidomyiidae), causing injury to soybean in the United States. Journal of Integrated Pest Management. 12(1): 8, 1-4.
  • Carmona G., L. M. Delserone, J.N. Duarte Campos, T. Ferriera de Almeida, D. Ozorio, J. Betancurth Cardona, R. Wright, and A.J. McMechan. 2021. Does cover crop management impact arthropods in the subsequent corn and soybean crops in the USA? A systematic review. Annals of the Entomological Society of America. doi:10.1093/aesa/saaa049
  • Hunt, E., H. Birge, C. Laingen, M. Licht, W. Baule, A. J. McMechan, and T. Connor. 2020. A perspective on changes across the U.S. Corn Belt. Environmental Research Letters. ERL-108408-R1.
  • Scierresi, C., C. Proctor, E. Haramoto, L. Lindsey, G. Carmona, R. Elmore, S. Everhart, W. Looker, M. Marroquin-Guzman, A. J. McMechan, J. Wehrbein, R. Werle, and M. Salmeron. 2020. Evaluating short-season soybean management adaptations for cover crop rotations with a crop simulation model. Field Crops Research 249: 107734.
  • Carmona G., J. Rees, R. Seymour, R. Wright, and A. J. McMechan. 2019. Wheat Stem Maggot (Diptera: Chloropidae): An emerging pest of cover crop to corn transition systems. Plant Health Progress. 20: 147-154.
  • Gagne, R., J.  Yukawa, A. Elsayed, and A. J. McMechan. 2019. A new pest species of Resseliella (Diptera: Cecidomyiidae) on soybean (Fabaceae) in North America with a description of the genus. Proceedings of the Entomological Society of Washington 121(2):168-177.
  • Tatineni, S., A. J. McMechan, and G. Hein. 2018. Wheat streak mosaic virus coat protein is a determinant for vector transmission by the wheat curl mite. Virology 514: 42-49.
  • Wosula, E., A. J. McMechan, E. Knoell, T. Satyanarayana, S. Wegulo, and G. Hein. 2018. Impact of timing and method of virus inoculation on the severity of wheat streak mosaic disease. Plant Disease. 102(3): 645-650.
  • McMechan, A. J. and G. L. Hein. 2017. Population dynamics of the wheat curl mite (Acari: Eriophyidae) during the heading stages of wheat. Journal of Econ. Ent. Accepted.
  • Nguy-Robertson T., A. Zygielbaum, A. J. McMechan, G. Hein, S. Wegulo, A. Stilwell, and T. Smith. 2016. Developing a framework for a risk map for mite vectored viruses in wheat resulting from pre-harvest hail damage in western Nebraska, U.S.A. Crop Protection. 89: 21-31.
  • Wosula, E., A. J. McMechan, C. Oliveira-Hofman, S. N. Wegulo, and G. L. Hein. 2016. Differential transmission of two isolates of Wheat streak mosaic virus by five wheat curl mite populations. Plant Dis. 100(1): 154-158.
  • McMechan, A. J. and G. L. Hein. 2015. Planting date and variety selection for management of viruses transmitted by the wheat curl mite (Aceria tosichella Keifer). Journal of Economic Entomology. 109(1): 70-77.
  • Byamukama E., S. Tatineni, G. Hein, A. J. McMechan, and S. N. Wegulo. 2015. Incidence of Wheat streak mosaic virus, Triticum mosaic virus, and Wheat mosaic virus in wheat curl mites recovered from maturing winter wheat spikes. Plant Dis. 100(2): 318-323.
  • Tatineni, S., A. J. McMechan, M. Bartels, G. L. Hein and R. A. Graybosch. 2015. In vitro transcripts of wild-type and fluorescent protein-tagged Triticum mosaic virus (Family Potyviridae) are biologically active in wheat. Phytopathology. 105(11): 1496-1505.
  • Wosula, E., A. J. McMechan, G. L. Hein. 2015. The effects of temperature, humidity, virus infection status on off host survival of Aceria tosichella (Trombidiformes: Eriophyidae). J. Econ. Ent. 108(4): 1545-1552.
  • Tatineni S., A. J. McMechan, E. Wosula, S. Wegulo, R. Graybosh, R. French, and G. Hein. 2014. An eriophyoid mite-transmitted plant virus contains eight genomic RNA segments with unusual heterogeneity in nucleocapsid protein. Journal of Virology. 88(20): 11834-11845.
  • McMechan A. J., S. Tatineni, R. French and G. Hein. 2014. Differential transmission of Triticum mosaic virus by wheat curl mite populations collected in the Great Plains. Plant Disease. Plant Disease. 98(6): 806-810.
  • Tatineni S., A. J. McMechan, G. Hein and R. French. 2011. Efficient and stable expression of GFP through Wheat streak mosaic virus-based vectors in cereal hosts using a range of cleavage sites: Formation of dense fluorescent aggregates for sensitive virus tracking. Virology 410: 268-281.

  • 2020 – Outstanding Extension Leadership Early Career Award from Epsilon Sigma Phi, Alpha Upsilon Chapter of UNL
  • 2020 – UNL Excellence in Extension Individual Award: Research and Discovery
  • 2020 – FMC New Investigator Award ($50,000 contribution to research program)
  • 2019 – UNL Excellence in Extension Team Award: Soybean Management Field Days
  • 2019 – University of Minnesota Abbey Alumni Award
  • 2018 – UNL Excellence in Extension Team Award: Hail Know
  • 2017 – UNL Excellence in Extension: Innovative New Employee
  • John Henry Comstock Award, Entomology Society of America, North Central Branch, 2016
  • President’s Prize Student Competition at Annual Meeting of Entomological Society of America
    • Oral 10-minute paper, Portland, OR, 2014
    • Oral 10-minute paper, Austin, TX, 2013
    • Oral 10-minute paper, Portland, Knoxville, TN, 2012
    • Oral 10-minute paper, Reno, NV, 2011
  • North Central Branch Entomological Society Student Competition
    • Oral Presentation (2nd Place), Manhattan, KS, 2015
    • Oral Presentation (1st Place), Des Moines, IO, 2014
    • Oral Presentation (2nd Place), Minneapolis, MN, 2011
    • Poster Presentation (1st Place), Louisville, KY, 2010
  • Agronomy Society of America
    • Outstanding Poster Award in Educational Materials, 2015
  • American Phytopathological Society
    • Poster Presentation (1st Place), Omaha, NE, 2011
  • Milton E. Mohr Teaching Fellowship, University of Nebraska, Lincoln, NE, 2011
  • Larrick-Whitmore Scholarship, Lincoln, University of Nebraska, Lincoln, NE, 2011
  • All American Award – Seed Analysis and Plant Identification, Chicago, IL, 2009
  • John Polley Soil and Water Conservation Award, Crookston, MN, 2009
  • Business Planning Award with Farm Credit Canada, Brandon, MB, Canada, 2006
  • Simplot Academic Excellence Award, Brandon, MB, Canada, 2006
  • Cargill Academic Excellence Award, Brandon, MB, Canada, 2006
  • Keith Gillman Foundation, Academic Excellence, Brandon, MB, Canada, 2006
  • Percy Lanham Foundation, Agriculture Academic Based Award, Brandon, MB, Canada, 2006

Entomology News at Nebraska

Breaking Entomological News...

  • Student working with a laptop for online degreeOnline students in the online Master's of Science (MS) degree program will benefit from a reduced credit-hour requirement and a reduced time requirement following changes by the UNL Graduate College and the Entomology Department. Starting next fall, students may earn an online MS degree for 30 credits, instead of 36 credits, under the Option B.  The new degree plan must be completed within five years, instead of 10 years.  More details about this change may be found on the IANR News website.
  • Dr. Gary Brewer
  • Dr. Gary Brewer, professor of Entomology has a new Push-Pull Strategy to manage Stable Flies.  These flies cause billions in economic losses for the US and the world. Brewer explains the Strategy on this YouTube Video. 
  • Annie KruegerAnnie Krueger, Ph.D. candidate in Entomology, was featured in the IANR Student Spotlight this week. Annie is from Stevensville, MD, and plans to graduate this August. She is mentored by Dr. Troy Anderson

  • Dr. Doug GolickDr. Doug Golick, associate professor of Entomology, received a $19,259 grant from the Nebraska Environmental Trust (NET) in April. He received one of 23 grants that were awarded to faculty at the University of Nebraska-Lincoln. Golick will study Milkweed as a teaching tool in the classroom. 
  • Dr. Autumn SmartThe Economics of Honey Bee (Hymenoptera: Apidae) Mgt. & Overwintering Strategies of Colonies Used to Pollinate Almonds,” co-authored by Dr. Autumn Smart, was chosen as a runner-up in the 2019-20 Readers' Choice Award for the Journal of Economic Entomology. Congratulations Autumn!
  • Matthew GreinerMS student Matt Greiner (mentored by Ana Vélez) was awarded 1st place in the student paper competition at the recent Ozark-Prairie SETAC meeting. The victory will provide him with funds to attend the national SETAC meeting in November. Way to go, Matthew!