Author: Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 18
Book Description
Evaluation of Black Stain Root Disease in Douglas-fir Plantations and Douglas-fir Stands (Jake Units), Orleans Ranger District, Six-Rivers National Forest
Black Stain Root Disease Survey in 15- to 25-year-old Douglas-fir Plantations of the Siskiyou National Forest
Author: Donald J. GoheenPublisher:
ISBN:
Category : Rogue River-Siskiyou National Forest
Languages : en
Pages : 22
Book Description
Black Stain Root Disease in Douglas-fir on Jackson State Forest
Author: Raymond E. JackmanBlack Stain Root Disease of Conifers
Author: Paul F. HessburgPublisher:
ISBN:
Category : Conifers
Languages : en
Pages : 12
Book Description
Black Stain Root Disease
Author: A Biological Evaluation of Black Stain Root Disease and Associated Pests in the Timber Mountain Area, Doublehead Ranger District, Modoc National Forest
Author: John T. KliejunasPublisher:
ISBN:
Category : Ponderosa pine
Languages : en
Pages : 12
Book Description
Biological Evaluation of Mortality in Douglas-fir Plantations on the Gasquet Ranger District, Six Rivers National Forest
Author: Gregg DeNittoPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 10
Book Description
A Biological Evaluation of Black Stain Root Disease, Stateline Timber Sale Area, Devils Garden Ranger District, Modoc National Forest
Author: John T. KliejunasPublisher:
ISBN:
Category : Forest management
Languages : en
Pages : 16
Book Description
Laminated Root Rot of Douglas-fir in Western Oregon and Washington
Author: Thomas White ChildsPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 28
Book Description
Laminated Root Rot in a Western Washington Plantation
Author: Richard E. MillerPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 48
Book Description
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.