Using honey bees to pollinate crops. - [Washington, U.S. Govt. Print. Off., 1968] - 7 p. illus. 24 cm. - United States. Dept. of Agriculture. Leaflet no. 549 . - Leaflet (United States. Department of Agriculture) ; no. 549. .

agr68000286


Honeybee.
Pollination by insects.
Fertilization of plants by insects.
Apis mellifera.

S21 / .A483 no. 549

1 Ag84L no. 549