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A Pilot Experiment Of Forest Fertilization During An Outbreak Of The Western Spruce Budworm In Northeastern Oregon Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of A Pilot Experiment Of Forest Fertilization During An Outbreak Of The Western Spruce Budworm In Northeastern Oregon book. This book definitely worth reading, it is an incredibly well-written.
Author : Richard R. Mason
Publisher : Unknown
Page : 32 pages
File Size : 46,6 Mb
Release : 1998
Category : Forest soils
ISBN : MINN:31951D02977385X
Author : Anonim
Publisher : Unknown
Page : 356 pages
File Size : 43,5 Mb
Release : 1978
Category : Forests and forestry
ISBN : UCBK:C069120293
Author : Anonim
Publisher : Unknown
Page : 1076 pages
File Size : 52,6 Mb
Release : 1999
Category : Government publications
ISBN : MINN:31951P00742650T
Author : Pacific Northwest Research Station (Portland, Or.)
Publisher : Unknown
Page : 132 pages
File Size : 54,6 Mb
Release : 1998
Category : Forests and forestry
ISBN : MINN:31951D029778035
Author : Anonim
Publisher : Unknown
Page : 504 pages
File Size : 49,9 Mb
Release : 1988
Category : Pests
ISBN : MINN:319510029636653
Author : Anonim
Publisher : Unknown
Page : 504 pages
File Size : 52,8 Mb
Release : 1989
Category : Electronic
ISBN : NWU:35556030827919
Author : Anonim
Publisher : Unknown
Page : 710 pages
File Size : 51,9 Mb
Release : 1989
Category : Pests
ISBN : MINN:31951002969456I
Author : Valentine M. Carolin
Publisher : Unknown
Page : 44 pages
File Size : 54,8 Mb
Release : 1972
Category : Aerial photography in forestry
ISBN : MINN:31951D029950857
Author : Thomas Frederick McLintock
Publisher : Unknown
Page : 416 pages
File Size : 49,7 Mb
Release : 1955
Category : Balsam fir
ISBN : STANFORD:36105130390938
From 1948 to 1952 a light to medium spruce budworm infestation occurred in the spruce-fir forests of northern Maine. During this period both the degree of infestation and the acreage affected fluctuated considerably, but the population remained below the damage level. In 1953 there was a general reduction in budworm population in all portions of northern Maine except a relatively small area of same 20,000 acres near Madawaska Lake. Here a marked increase in infestation occurred. Because of possible damage to trees on this area and the hazard of spread to adjacent areas, this tract was sprayed in the spring of 1954. Meanwhile a very severe outbreak over an area of several thousand square miles in the nearby Province of New Brunswick has become a serious threat to the spruce-fir forests of Maine.
Author : Richard Irvin Washburn
Publisher : Unknown
Page : 30 pages
File Size : 44,7 Mb
Release : 1973
Category : Insect populations
ISBN : MINN:31951D029881383
Author : U.S. Pacific Northwest Forest and Range Experiment Station, Portland, Or
Publisher : Unknown
Page : 130 pages
File Size : 53,6 Mb
Release : 1956
Category : Spruce bud-worm
ISBN : CORNELL:31924061375154
Author : Anonim
Publisher : Unknown
Page : 512 pages
File Size : 47,8 Mb
Release : 1988
Category : Entomology
ISBN : WISC:89030513709
Author : Anonim
Publisher : Unknown
Page : 524 pages
File Size : 41,9 Mb
Release : 1988
Category : Entomology
ISBN : CORNELL:31924050781859
Author : Philip Cornwell Johnson
Publisher : Unknown
Page : 152 pages
File Size : 50,9 Mb
Release : 1975
Category : Western spruce budworm
ISBN : MINN:31951D029779023
Author : Valentine M. Carolin,W. K. Coulter
Publisher : Unknown
Page : 24 pages
File Size : 48,5 Mb
Release : 1975
Category : Abies grandis
ISBN : MINN:31951D02995111W