Bumblebee, Bombus terrestris is widely used to pollinate various crops, especially tomato, in greenhouses. Mason bee, Osmia cornifrons, which is using as apple pollinator. Here we investigated characteristics on pollinating activity of B. terrestris and O. conifrons at different weather conditions in apple orchard. The foraging activity of O. conifrons was more sensitive than that of B. terrestris at weather conditions including temperature, illumination intensity and wind velocity. The pollinating activity of O. conifrons was very low than that of B. terrestris at a low temperature, cloudy, rainy and windy weather. Therefore, Our results indicated that B. terrestris was suitable for apple pollinator than O. conifrons, especially in low temperature and bad weather.

• Hyung Joo Yoon(Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
• Kyeong Yong Lee(Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
• Mi Ae Kim(Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
• In Gyun Park(Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
• Pil Don Kang(Department of Agricultural Biology, National Academy of Agricultural Science, RDA)