• Toprak, U., Gürkan, M.O. 2005. Enhancement in activity of Turkish SpliNPV-B to Spodoptera littoralis (Lepidoptera:Noctuidae) by an optical brightener. Society for Invertebrate Pathology Annual Meeting, Anchorage, USA, August 7-11.
• Toprak, U., Gürkan, M.O. 2005. A friendly insect pest control strategy for environment: The Baculoviruses. II. International Environmental Protection Symposium, Dumlupınar University, Kütahya, Turkey, September 8-10.
• Toprak, U., Gürkan, M.O. 2005. An alternative management model of Spodoptera littoralis (Lepidoptera: Noctuidae) to chemical control. II. International Environmental Protection Symposium, Dumlupınar University, Kütahya, Turkey September 8-10