| 1994 | Joseph McGuire | Bioresource Engineering |
| 1995 | Kenneth B. Johnson | Botany and Plant Pathology |
| 1996 | Gregory Perry | Agricultural and Resource Economics |
| 1997 | Janine Trempy | Microbiology |
| 1999 | Jennifer Field | Environmental/Molecular Toxicology |
| 2000 | Anthony T. Vella | Microbiology |
| 2001 | Timothy DelCurto | Animal Sciences |
| 2002 | JunJie Wu | Agricultural and Resource Economics |
| 2003 | Selina Heppell | Fisheries and Wildlife |
| 2004 | Oscar Riera-Lizarazu | Crop and Soil Science |
| 2005 | Douglas Robinson | Fisheries and Wildlife |
| 2006 | Staci Simonich | Environmental and Molecular Toxicology |
| 2007 | Silvia Rondon | Crop and Soil Science |
| 2008 | Vaughn Walton | Horticulture Department |
