Professor Theeraphap Chareonviriyaphap conducts research studies on the blood-sucking insects affecting humans and livestock. His current work includes bionomics of vectors of human and livestock diseases, vector incrimination and vector competence studies; vector behavior in response to insecticides used in control interventions and in response to the use of repellents and candidate botanicals, and some research on vector population genetics. One of Professor Chareonviriyaphap's major accomplishments is the patenting of the "Excito‐Repellency Box" which is considered very useful in studying mosquito behavior towards different insecticides used in disease control programs. Excito‐ repellency Box test is now considered one of the standard procedures in determining the avoidance behavior of mosquito vectors to insecticides. He has produced many published works from that patented product. His other works centered on mosquito behavior using other systems such as High Throughput Screening System (HITTS) and use of experimental huts. Recently, Professor Theeraphap Chareonviriyaphap has been appointed to be the Director of the Research and Life-Long Learning Center for Urban and Environmental Entomology since 2023.