This study was conducted to evaluate the the efficacy of mulberry cake mixed diet on larval growth of Protaetia brevitarsis. As a result of adding 3, 5, and 10% mulberry cake to the fermented mulberry sawdust, the development period of the Protaetia brevitarsis larvae was 44.9days, 44.6days, and 41.8days, and the highest weight of larvae was 2.76g, 2.80g, and 2.89g, respectively. As a result of adding 3, 5, and 10% mulberry cake to the fermented oak sawdust, the development period of the Protaetia brevitarsis larvae was 46.7days, 41.6days, and 41.7days, and the highest weight of larvae was 2.65g, 2.65g, and 2.56g, respectively.

• Moon Hyung Cheol(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)
• Ju Rock Lim(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)
• Eun Mi Lee(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)
• Moon Sik Park(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)
• Sun Young So(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)
• Hyung Kwon Cheon(Jeonbuk Agricultural Research and Services, Sericulture and Entomology Experiment Station, Korea)