Chaverri, Priscila. (2003). Studies on the systematics of Hypocrea-Trichoderma (Hypocreaceae, Hypocreales, Ascomycota): species with green ascospores. Ph.D. dissertation; Elwin Stewart, dissertation adviser.

Costanzo, Stefano. (2003). Characterization and mapping of QTLS conferring resistance to late blight in potato. Ph.D. dissertation; Barbara J. Christ, dissertation adviser. PDF also available at

Fromm, Matthew S. (2003). Forest impacts of the hemlock woolly adelgid and its association with Armillaria species. M.S. thesis; Donald D. Davis, thesis adviser.

Ramón, María Paola. (2003). Effects of fertilizer, pH and biological control on Pythium root rot. M.S. thesis; Gary W. Moorman, thesis adviser.

Rauyaree, Payungsak. (2003). Molecular basis of pathogenicity by soilborne fungal plant pathogen, Verticillium dahliae. Ph.D. dissertation; Seogchan Kang, dissertation adviser. PDF also available at

Sica, Cory J. (2003). Pennsylvania populations of Alternaria solani, the causal agent of early blight of potato evaluated for fungicide resistance. M.S. thesis; Barbara J. Christ, thesis adviser.