5DOGTEROM M H, MATTEONI JA, PLOWRIGHTRC. Pollination of greenhouse tomatoes by the North American Bombus vosnesenskii (Hymenoptera: Apidae) [J]. Journal of Economic Entomology, 1998, 91: 71-75.
6DAG A, KAMMER Y. Comparison between the effectiveness of honey bee (Apis mellifera) andbumble bee (Bombus terrestris) as pollinators of greenhouse sweet pepper (Capsicum annuum) [J]. American Bee Journal, 2001,141 (6): 447-448.
