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Filtering by: Creator Vandenberg, J. D. (John Donald)

Etiology and pathogenesis of chalkbrood in the alfalfa leafcutting bee, Megachile rotundata

Creator:

Vandenberg, J. D. (John Donald)

Abstract:

Chalkbrood is a mycosis of larvae of the alfalfa leafcutting bee, Megachile rotundata (Fabricius). It is a serious threat to alfalfa seed growers in western North America who use populations of this bee for pollination. Basic studies were conducted to determine the etiology of this disease and the course of...

Resource Type:

Dissertation
Inhibition of chalkbrood spore germination in vitro (Ascosphaera aggregata: Ascosphaerales)

Creator:

Oregon State University. Agricultural Experiment Station, Stephen, W. P., Vandenberg, J. D. (John Donald), Fichter, B. L., and Lahm, G.

Abstract:

Published January 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report
Etiology and epizootiology of chalkbrood in the leafcutting bee, Megachile rotundata (Fabricius), with notes on Ascosphaera species

Creator:

Oregon State University. Agricultural Experiment Station, Stephen, W. P., Vandenberg, J. D. (John Donald), and Fichter, B. L.

Abstract:

Published October 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report