자두망사하우스에서 서양종꿀벌, 서양뒤영벌 그리고 머리뿔가위벌의 화분매개활동 특성

This study was examined the pollinating activity and effect of Apis mellifera, Bombus terrestris and Osmia cornifrons released on prunus blossoming season in the prunus net-house. In the results, the pollinating peak times of A. mellifera and O. cornifrons were recorded at 2p.m. and that of B. terrestris was recorded at 10a.m.. Three kinds of visiting time on a prunus flower of A. mellifera had 3.6sec. with honey collectors, 2.2sec. with pollen collectors and 5.6sec. with honey plus pollen collector, respectively. But B. terrestris and O. cornifrons were collected pollen only. Fruit setting rates by three bees were not different with 9.9~10.4%, however those by three bees were 2% higher than that of natural pollination. When we surveyed the fruit qualities by pollinating activity of three bees, the weight of a fruit, the length of a fruit by three bees released were higher than those of the natural pollination. But the sugar content a fruit, the pH a fruit, the hardness a fruit by pollinating activity of three bees were not nearly different. Fruit product amount per 10a and amount of market fruit per 10a by three bees were 4.5∼6.1% higher than those by natural pollination. However the income by A. mellifera, and O. cornifrons released were 1% and 3% higher than artificial pollination and B. terrestris.