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August 20, 2025 | History

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D.W. Johnson

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Tree hazards: recognition and reduction in recreation sites

by D.W. Johnson First published in 1981 — 1 edition

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Cankers on western quaking aspen

by D.W. Johnson First published in 1995 — 1 edition

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Comandra blister rust

by D.W. Johnson First published in 1986 — 1 edition

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Cankers on western quaking aspen

by D.W. Johnson First published in 1995 — 1 edition
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A survey for Melampsora leaf rusts along the Colorado front range

by D.W. Johnson First published in 1995 — 1 edition
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Acid Deposition and the Acidification of Soils and Waters

by J.O. Reuss and D.W. Johnson First published in 2012 — 1 edition

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1979 dwarf mistletoe loss assessment survey on national forest lands in Colorado

by D.W. Johnson First published in 1980 — 1 edition
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Wildlife of the canyons: Colorado National Monument and the Colorado Plateau region

by D.W. Johnson First published in 1990 — 1 edition

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Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe 4 years following treatment

by D.W. Johnson First published in 1992 — 1 edition
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An assessment of root diseases in the Rocky Mountain Region

by D.W. Johnson First published in 1984 — 1 edition
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Reduction of ponderosa pine dwarf mistletoe with the plant growth regulator ethephon

by D.W. Johnson First published in 1988 — 1 edition
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Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe

by D.W. Johnson First published in 1989 — 1 edition
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Growth and fate of comandra rust cankers on young lodgepole pine

by D.W. Johnson First published in 1979 — 1 edition
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Dwarf mistletoe program planning for the Rocky Mountain Region--1987-1991

by D.W. Johnson First published in 1987 — 1 edition
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Disease survey of Buckhorn Creek Lodgepole pine stand forty years after establishment, Canyon Lakes Ranger District, Arapaho and Roosevelt National Forests

by D.W. Johnson First published in 1999 — 1 edition
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Evaluation of Porcupine and Snyder Creeks dwarf mistletoe thinning studies Routt National Forest, Colorado

by D.W. Johnson First published in 1999 — 1 edition
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Evaluation of hidden lakes dwarf mistletoe pruning study. Routt National Forest Colorado

by D.W. Johnson First published in 1998 — 1 edition
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Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe 3 years following treatment

by D.W. Johnson First published in 1991 — 1 edition
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Tree hazards: recognition and reduction in recreation sites

by D.W. Johnson First published in 1981 — 1 edition
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Dwarf mistletoe as a predisposing factor for mountain pine beetle attack of ponderosa pine in the Colorado Front Range

by D.W. Johnson First published in 1976 — 1 edition
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ID Numbers

OLID: OL7420949A

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Alternative names

David W. Johnson

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