Joseph Thaddeus Walls, III

  • Ph.D. Candidate
  • Advised by: Dr. Cristina Rosa
Joseph Thaddeus Walls, III
301 Buckhout Lab (office)
410 Buckhout Lab (lab)

University Park, PA 16802
Work Phone: 814-863-1932
Fax: 814-863-7217


  1. B.S., Biology, Truman State University
  2. M.S., Entomology from Penn State University

My research is focused on the effects of climate change on virus evolution and plant response to virus infection. Specifically I work with Tomato spotted wilt virus in tomato. I track changes in the abscisic acid, jasmonic acid, and salicylic acid pathways with virus infection and various climatic conditions. I am part of the International Agriculture and Development program and will be conducting some of my research in Nepal using elevation changes as a proxy for climate change.


Walls III JT, Caciagli P, Tooker JF, Russo JM, Rajotte EG, Rosa C. 2016. Modeling the decision process for barley yellow dwarf management. Computers and Electronics in Agriculture 127:775-786.