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R. C. Beckwith

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Douglas-fir tussock moth handbook: larval instars of the Douglas-fir tussock moth

by R. C. Beckwith First published in 1978 — 3 editions

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Development of western spruce budworm on Douglas-fir callus tissue

by R. C. Beckwith First published in 1991 — 2 editions
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The large aspen tortrix, choristoneura conflictana (wlkr.), in interior Alaska.

by R. C. Beckwith First published in 1968 — 2 editions

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The large aspen tortrix

by R. C. Beckwith First published in 1973 — 1 edition
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Bark beetle response to clearcut and shelterwood systems in interior Alaska after whole tree logging

by R. C. Beckwith First published in 1977 — 1 edition
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Instar development of the Douglas-fir tussock moth in relation to field temperatures

by R. C. Beckwith First published in 1993 — 1 edition

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Larval instars of the Douglas-fir tussock moth

by R. C. Beckwith First published in 1978 — 1 edition

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Key to adult bark beetles commonly associated with white spruce stands in Interior Alaska

by R. C. Beckwith First published in 1972 — 1 edition
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How to determine the number of Douglas-fir tussock moth eggs from egg mass weight

by R. C. Beckwith First published in 1982 — 1 edition

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Spring larval dispersal of the western spruce budworm Lepidoptera-Tortricidae in north-central Washington

by R. C. Beckwith First published in 1982 — 1 edition

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OLID: OL4300944A

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