Publications:
  1. Vieira, H. V., Bradford, B. Z., Osterholzer, A., Peirce, E. S., Cockrell, D., Peairs, F., Frost, K., Groves, R., and Nachappa, P. 2025. A new growing degree-day phenology model for wheat stem sawfly (Hymenoptera: Cephidae) in Colorado wheat fields. PLOS ONE, 20(4), e0320497. https://doi.org/10.1371/journal.pone.0320497​
  2. ​Bradshaw, J. A., Rand, T. A., Peirce, E. S., Nachappa, P., Osterholzer, A., Easterly, A. C., Creech, C. F., Struckmeyer, B., Poss, D., Schmale, D., Linnebur, A., Mankin, K., Miner, G., Hardy, C., Floyd, B. and Kleinman. P. 2024. ‘Beneficial Bug Baler’: A Novel Technique for Mass Relocation of Bracon in Support of Cephus cinctus Biocontrol in Wheat, Triticum aestivum. Arthropod Management Tests, Volume 50, Issue 1, 2025, tsaf072, https://doi.org/10.1093/amt/tsaf072
  3. Peirce, E.S., Evers, B., Winn, Z.J., Raupp, W.J., Guttieri, M., Fritz, A.K., Poland, J., Akhunov, E., Haley, S., Mason, E. and Nachappa, P†. 2024. Identifying novel sources of resistance to wheat stem sawfly in five wild wheat species. Pest Manag Sci, 80: 2976-2990. https://doi.org/10.1002/ps.8008
  4. Peirce, E.S., Cockrell, D.M., Mason, E., Haley, S., Peairs, F., and Nachappa, P†. 2022. Solid Stems and Beyond: Challenges and Future Directions of Resistance to Wheat Stem Sawfly (Hymenoptera: Cephidae), Journal of Integrated Pest Management, Volume 13, Issue 1, 29
  5. Albrecht, T., White, S*., Layton, M., Stenglein, M., Haley, S., and Nachappa, P†. 2022. Occurrence of wheat curl mite and mite-vectored viruses of wheat in Colorado and insights into the wheat virome. Plant Dis. 2022 106:10, 2678-2688. Editor’s pick of the month.
  6. Peirce, E.S., Cockrell, D.M, Ode, P.J., Peairs, F.B., and Nachappa, P. 2022. Triticale as a potential trap crop forthe wheat stem sawfly (Hymenoptera: Cephidae) in winter wheat. Front. Agron. 4:779013. doi: 10.3389/fagro.2022.779013.
  7.  Xie, Y., Nachappa, P., Nalam, V.J and Pearce, S. 2022. Genomic and Molecular Characterization of Wheat Streak Mosaic Virus Resistance Locus 2 (Wsm2) in Common Wheat (Triticum Aestivum L.). Front.Plant Sci.13:928949. doi:10.3389/fpls.2022.928949
  8. Nachappa, P†., Haley, S., and Pearce, S. 2021. Interactions between the wheat curl mite and viruses: 2021. Resistance status and mechanisms. Focus issue on "Insect Adaptation and Host Plant Resistance: Integrating Modern and Traditional Approaches". Andy Michel and Marion Harris (eds). Current Opinion in Insect Science (45): 21-27.

​The following codes are listed after publications: *undergrad student; **grad student, †corresponding author.