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Author : E. E. Nelson
Publisher : Unknown
Page : 8 pages
File Size : 48,6 Mb
Release : 1981
Category : Conifers
ISBN : MINN:31951D02567884D
Author : Anonim
Publisher : Unknown
Page : 40 pages
File Size : 47,8 Mb
Release : 1995
Category : Fungal diseases of plants
ISBN : MINN:31951D02889118B
Author : James S. Hadfield,David Winslow Johnson
Publisher : Unknown
Page : 20 pages
File Size : 50,5 Mb
Release : 1977
Category : Phellinus weirii
ISBN : MINN:319510028407283
Author : E. E. Nelson
Publisher : Unknown
Page : 16 pages
File Size : 52,9 Mb
Release : 1980
Category : Douglas fir
ISBN : MINN:31951D02986318B
Author : Thomas White Childs
Publisher : Unknown
Page : 8 pages
File Size : 43,5 Mb
Release : 1971
Category : Conifers
ISBN : IND:30000091993471
Author : Anonim
Publisher : Unknown
Page : 2 pages
File Size : 52,7 Mb
Release : 1987
Category : Douglas fir
ISBN : MINN:319510029547731
Author : Richard E. Miller
Publisher : Unknown
Page : 48 pages
File Size : 48,5 Mb
Release : 2006
Category : Douglas fir
ISBN : MINN:31951D029778124
A 4-year-old Douglas-fir plantation in the western Washington Cascades was monitored for 8 years after fertilization with potassium (K), nitrogen (N), and K+N to determine fertilizer effects on rates of mortality from laminated root rot (LRR) and other causes relative to a nonfertilized control. Each element was applied at a rate of 300 lb/acre on and around 0.2-acre plots replicated seven times in a randomized complete block design. Cumulative mortality from LRR did not differ significantly among fertilizer treatments, and losses were strongly related to density of infected stumps from the previous stand (r2 = 0.74). Mortality from disease and other sources accelerated during the 8 years of monitoring. Average tree growth and stand volume were greatest in treatment N and were reduced where N was combined with K. Continued monitoring is needed to identify potential longer term effects of the fertilizer treatments on susceptibility of Douglas-fir to LRR and Armillaria spp.
Author : Thomas White Childs
Publisher : Unknown
Page : 28 pages
File Size : 42,9 Mb
Release : 1970
Category : Douglas fir
ISBN : MINN:31951D02995407B
Author : Walter G. Thies
Publisher : Unknown
Page : 32 pages
File Size : 54,8 Mb
Release : 1995
Category : Electronic
ISBN : OCLC:895642960
Laminated root-rot, caused by the fungus Phellinus weirii, is a serious root disease affecting Douglas fir and other commercially important species of conifers in north-western North America. This report provides an overview of the disease as it occurs in the Pacific Northwest of the US and Canada. Information is presented on recognizing crown symptoms and signs of the disease. The disease cycle of laminated root-rot from initiation to intensification and distribution within infected stands is also described. Finally, disease management strategies during stand development and at stand regeneration are discussed. Features on the nomenclature of the fungus and on its management by silvicultural and mechanical approaches are included.
Author : James S. Hadfield
Publisher : Unknown
Page : 16 pages
File Size : 48,7 Mb
Release : 1985
Category : Root rots
ISBN : UCD:35555000542920
Author : Donald R. Gedney
Publisher : Unknown
Page : 8 pages
File Size : 40,5 Mb
Release : 1981
Category : Root rots
ISBN : MINN:31951D02986335B
Author : Anonim
Publisher : Unknown
Page : 172 pages
File Size : 46,9 Mb
Release : 1998
Category : Armillaria
ISBN : MINN:31951D029772584
Author : Anonim
Publisher : Unknown
Page : 28 pages
File Size : 49,6 Mb
Release : 1984
Category : Conifers
ISBN : CUB:P206071701013
Author : Anonim
Publisher : Unknown
Page : 188 pages
File Size : 44,7 Mb
Release : 1990
Category : Heterobasidion annosum
ISBN : MINN:31951D02977235G
Author : Anonim
Publisher : Unknown
Page : 32 pages
File Size : 54,5 Mb
Release : 1986
Category : Conifers
ISBN : MINN:319510029457481
