compilation (3) for the production of spathius exarator, perioda aufzuchtpopulation (6) of spathius exarator,a wirtspopulation (5)a carrier (4) for the aufzuchtpopulation (6) and the wirtspopulation (5), with the wirtspopulation (5) larvae of stegobium paniceum and / or lasioderma serricorne is in the carrier (4) ausgetrocknetes made, especially bread, includes.