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Last edited by ImportBot
September 7, 2018 | History
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D.W. Johnson

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14 works Add another?

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  • Cover of: Cankers on western quaking aspen

    First published in 1995 — 1 edition
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  • Cover of: Acid Deposition and the Acidification of Soils and Waters

    First published in 2012 — 1 edition
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  • Cover of: Forest health monitoring plan for Colorado

    First published in 1992 — 1 edition
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  • Cover of: Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe two years following treatment

    First published in 1990 — 1 edition
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  • Cover of: Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe 4 years following treatment

    First published in 1992 — 1 edition
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  • Cover of: An assessment of root diseases in the Rocky Mountain Region

    First published in 1984 — 1 edition
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  • Cover of: Reduction of ponderosa pine dwarf mistletoe with the plant growth regulator ethephon

    First published in 1988 — 1 edition
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  • Cover of: Evaluation of hidden lakes dwarf mistletoe pruning study. Routt National Forest Colorado

    First published in 1998 — 1 edition
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  • Cover of: Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe

    First published in 1989 — 1 edition
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  • Cover of: Effects of application rate and timing of ethephon treatments on abscission of ponderosa pine dwarf mistletoe 3 years following treatment

    First published in 1991 — 1 edition
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  • Cover of: Tree hazards: recognition and reduction in recreation sites

    First published in 1981 — 1 edition
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  • Cover of: Growth and fate of comandra rust cankers on young lodgepole pine

    First published in 1979 — 1 edition
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  • Cover of: Dwarf mistletoe program planning for the Rocky Mountain Region--1987-1991

    First published in 1987 — 1 edition
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  • Cover of: A summary of dwarf mistletoe program activities in the Rocky Mountain Region--1970-1986

    First published in 1986 — 1 edition
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We need a photo of D.W. Johnson

Subjects

Parasitic plants, Arceuthobium vaginatum, Ethephon, Pinus ponderosa, Weed control, Application rate, Application timing, Disease control, Pinus contorta, Plant diseases and disorders, Abscission, Arceuthobium americanum, Pest control, Acid deposition, Agricultural engineering, Arceuthobium, Armillaria mellea, Ceratocystis, Ceratocystis wageneri, Chemical reactions, Costs and returns, Cronartium comandrae, Detection, Disease surveys, Forest management

Places

Colorado, Wyoming

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ID Numbers

  • OLID: OL7420949A

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History

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September 7, 2018 Created by ImportBot import new book