The 26th International Manifestation of Olive Growers and Olive Oil Producers “Noćnjak 2024”, organized by the Cooperative Association of Dalmatia, took place in Zadar from 14 to 17 March 2024. As part of “Noćnjak 2024”, a scientific expert meeting was held, at which the project of the Croatian Science Foundation IP-2022-10-9643 “Novel approach to olive fruit fly (Bactrocera oleae, Rossi) monitoring and/or control using volatile compounds produced by brewing by-product – BeerBy-4-OlivrFly” was presented by the leader, Dr. Elda Vitanović. The project leader gave an oral presentation in which she presented general information about the project and the grant, the defined activities and objectives, the work plan and the expected results.