Etiology and epizootiology of chalkbrood in the leafcutting bee, Megachile rotundata (Fabricius), with notes on Ascosphaera species
By: [W.P. Stephen, J.D. Vandenberg, and B.L. Fichter].
Contributors: Vandenberg, John Donald.; Fichter, B. L.
Series: Station bulletin / Agricultural Experiment Station, Oregon State University -- 653.; Station bulletin (Oregon State University. Agricultural Experiment Station) -- 653.
Publisher: Agricultural Experiment Station, Oregon State University
Published: 1981
Place of publication: Corvallis, Or
Language: eng
Subjects: Alfalfa leafcutting bee.; Bees -- Diseases.
Notes: Title from cover.

Bibliography: p. [10]