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Laminated Root Rot
Laminated Root Rot in Western North America
Laminated Root Rot Damage in a Young Douglas-fir Stand
Laminated Root Rot of Douglas-fir
Laminated Root Rot of Douglas-fir in Western Oregon and Washington
Laminated Root Rot in a Western Washington Plantation
Author: Richard E. Miller
Publisher:
Published: 2006
Total Pages: 48
ISBN-13:
DOWNLOAD EBOOK →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.
Recognizing laminated root rot in freshly-cut Douglas-fir stumps
Laminated Root Rot in Western North America
Author: W. G. Thies
Publisher:
Published: 1995
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOK →Information on symptoms and diagnosis, disease cycle, disease management and modelling, as well as further references.
Laminated Root Rot of Douglas-Fir in Western Oregon and Washington (Classic Reprint)
Author: Thomas White Childs
Publisher: Forgotten Books
Published: 2018-09-09
Total Pages: 42
ISBN-13: 9781390872675
DOWNLOAD EBOOK →Excerpt from Laminated Root Rot of Douglas-Fir in Western Oregon and Washington It is important primarily as a killer. Young infected trees seldom survive long enough for reduction of growth rate or extension of decay into the butt log to be of much consequence. In old-growth stands, where killing is slower, infection is less common, and decay usually extends only a few feet into butt logs and involves mostly the low-quality core. This paper summarizes results obtained during the past 20 years from research still in progress. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
