Feeding effects of the honeybee pollen products from both domestic, China, Spain and mixture of different origin on the colony development of earth bumblebee, Bombus terrestris L., were surveyed to evaluate efficient nutritional resources for commercial bombiculture in Korea. As the results, the domestic pollen was most effective to achieve high rates of oviposition (88%), colony foundation (70%), and queen production. While feeding with domestic pollens during the egg-laying period, and domestic+Chinese mixture (5:2) during the breeding period (Plot-2), it revealed high oviposition rate of 75%, colony foundation of 65%, and large numbers of adult queen production, indicating its suitability for generation subculturing. In the Plot-3, the same high oviposition rate (75%) was obtained except for feeding with the domestic+Chinese mixture (2:5) during the breeding period, which produced large number of workers.

• Kyung CHOI(School of Applied Biosciences, Kyungpook National University, Daegu, Korea, Institute of Industrial Entomology, Yecheon County, Korea)
• Sang Jae SUH(School of Applied Biosciences, Kyungpook National University, Daegu, Korea)
• Yong Jung KWON(School of Applied Biosciences, Kyungpook National University, Daegu, Korea)
• Su Jin LEE(Institute of Industrial Entomology, Yecheon County, Korea)