Oregon State University. Extension Service; Sagili, Ramesh R.; Burgett, D. M.; Washington State University. Extension; University of Idaho. Extension; United State. Dept. of Agriculture; Pacific Northwest Cooperative Extension ([Corvallis, Or.] : Oregon State University, Extension Service ; [Pullman, Wash.] : Washington State University Extension ; [Moscow, Idaho] : University of Idaho Extension ; [Washington, D.C.] : U.S. Dept. of Agriculture, 2011-01)
A guide for both commercial growers who rent honey bees for pollination and beekeepers who provide pollination services, including information on honey bee colony strength evaluation, average number of colonies needed fo ...
