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W. P. Stephen

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Stone fruit pollination

by W. P. Stephen First published in 1970 — 2 editions

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Propagation of the leaf-cutter bee for alfalfa seed production

by W. P. Stephen First published in 1962 — 2 editions

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Maintaining alkali bees for alfalfa seed production

by W. P. Stephen First published in 1959 — 1 edition

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Artificial beds for alkali bee propagation

by W. P. Stephen First published in 1965 — 1 edition

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Pear pollination studies in Oregon

by W. P. Stephen First published in 1958 — 1 edition

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Nesting media for the propagation of leaf cutter bees

by W. P. Stephen First published in 1970 — 1 edition

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Bumble bees of Western America (Hymenoptera: Apoidea)

by W. P. Stephen First published in 1957 — 1 edition

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Chalk brood disease in the leafcutting bee

by W. P. Stephen First published in 1978 — 1 edition

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Studies in the alkali bee (Nomia melanderi Ckll.).

by W. P. Stephen First published in 1960 — 1 edition

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

by W. P. Stephen First published in 1981 — 1 edition

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Field domiciles and incubators for the leafcutting bee: their form and function in management

by W. P. Stephen First published in 1979 — 1 edition

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A natural light Sapyga and parasite emergence trap in leafcutting bee management (Megachile rotundata)

by W. P. Stephen First published in 1979 — 1 edition

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ID Numbers

OLID: OL4528880A

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