Index Catalog // ScholarsArchive@OSU

Durability of a changing western redcedar resource

Creator:: Freitag, Camille M. and Morrell, Jeffrey J.
Abstract:: The heartwood of western redcedar (Thuja plicuta) is known for its natural resistance to fungal attack, but some users of western redcedar utility poles have suggested that its durability may be diminished as suppliers begin to harvest trees from younger stands. The decay resistance of western redcedar samples from the...
Resource Type:: Article
Full Text:: - mation. Wood Sci. Technol. 10: 1-8. CLARK, J. W., A N D T. C. SCHEFFER. 1983. Natural decay

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

Creator:: Mankowski, Mark and Morrell, Jeffrey J.
Abstract:: The ability of white and brown rot fungi to colonize wood-plastic composites was investigated by measuring weight loss and anatomical changes. Three composite materials were evaluated. The material containing a 70/30 wood-high density polyethylene (HDPE) mixture was most susceptible to fungal attack, while two different 50/50 wood-HDPE composites experienced little...
Resource Type:: Article
Full Text:: for a plastic-wood composite. Proc. Am. Wood-Preserv. Assoc. 89: 108-109 (Abstract). SIMONSEN, W. J

Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

Creator:: Kriz, Matthew A.
Abstract:: Gray wolves (Canis lupus) are the most socially polarizing species listed under the Endangered Species Act. Wildlife management practices at local, state, and federal levels include lethal control to resolve stakeholder and wolf conflicts as a last resort. There is little experimental evidence that lethal control is effective in this...
Resource Type:: Capstone Project
Full Text:: AN ABSTRACT OF THESIS OF Matthew A. Kriz for the

A Note on the Sensitivity of A Closed-Tube Bioassay To Volatile Methylisothiocyanate Residues In Fumigant-Treated Wood

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: A closed-tube bioassay with Poria placenta was used to measure residual fungistatic vapors in wood fumigated with methylisothiocyanate (MIT). This bioassay showed an inverse linear relationship between fungal growth and the amount of MIT in the wood samples. For fumigated increment-core sections of unseasoned Douglas-fir heartwood (4.8 mm in diameter...
Resource Type:: Article
Full Text:: . J. 35(6):63-67. -- . G. G. HELSING, AND R. D. GRAHAM. 1984. Marine wood maintenance manual: A

Evaluating potential decay control agents with a small block test

Creator:: Corden, Malcolm E. and Morrell, Jeffrey J.
Abstract:: A small-scale test was developed to evaluate the ability of fungicides to control decay fungi established in wood. The test, which uses blocks 2.5 x 2.5 x 10 cm, tests the ability of a chemical to migrate from the middle of the block to control a previously established decay fungus,...
Resource Type:: Article
Full Text:: . Controlling wood deterioration with fumigants: A review. Forest Prod. J. 36(10):26-34. -- , A. R. ZAHORA

Influence of red alder competition on cambial phenology and latewood formation in Douglas-fir

Creator:: Grotta, A. T., Gartner, Barbara L., Radosevich, S. R., and Huso, M.
Abstract:: To better understand the influence of competition on wood formation and wood quality in Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco), patterns of cambial growth and latewood production were examined for one growing season in 15-year-old plantations with similar densities but differing Douglas-fir/red alder (Alnus rubra Bong.) ratios. The treatments consisted of...
Resource Type:: Article
Full Text:: applications, density is of fundamental importance among its wood quality attributes. Wood density is a

Decomposition of Basamid in Douglas-fir heartwood: Laboratory studies of a potential wood fumigant

Creator:: Forsyth, Paul G. and Morrell, Jeffrey J.
Abstract:: Basamid (3,5-dimethyl-l,3,5,2H-tetrahydrothiadiazine-2-thione), a crystalline powder first used as a soil sterilant, has shown promise as a wood fumigant. This chemical decomposes to methylisothiocyanate (MITC), the primary active ingredient, as well as other products; but the rate of decomposition in wood is too slow to be effective unless certain catalysts are...
Resource Type:: Article
Full Text:: : LABORATORY STUDIES OF A POTENTIAL WOOD FUMIGANT1 Paul G. Forsyth Research Associate and Researcher

Decomposition of metham sodium to methylisothiocyanate as affected by wood species, temperature, and moisture content

Creator:: Morrell, Jeffrey J.
Abstract:: The effect of various wood characteristics on decomposition of metham sodium to methylisothiocyanate in sixteen North American and Southeast Asian hardwoods and softwoods was investigated. While marked differences were noted in the degree of decomposition among some species, the relationship between decomposition and lignin content, extractive levels, wood pH, or...
Resource Type:: Article
Full Text:: 4 1. M o m , J. J., AND M. E. CORDEN. 1986. Controlling wood deterioration with fumigants: A

Bioassaying wood preservatives with Aspergillus niger

Creator:: Morrell, Jeffrey J.
Abstract:: The bioassay with Aspergillus niger is a simple way of determining the presence and amount of pentachlorophenol or tributyltin oxide in wood, but it does not appear useful for measuring strongly fixed chemicals such as chromated copper arsenate, borate, and fluoride. Its effectiveness in detecting other preservatives has not been...
Resource Type:: Article
Full Text:: (NSS and NWD), both of which bind themselves strongly to wood. Similarly, Napcocide did not produce a

Controlling decay fungi in Douglas-fir heartwood with pelletized sodium n-methyldithiocarbamate

Creator:: Sexton, Camille M., Morrell, Jeffrey J., and Newbill, Mark A.
Abstract:: A small block test was used in assessing whether pelletized sodium n-methyldithiocarbamate (NaMDC) would decompose and produce methylisothiocyanate (MITC) and thereby eliminate Antrodia carbonica colonies from Douglas-fir heartwood. Also evaluated were the effects of wood moisture content, dosage, incubation period, pH level, and presence of copper sulfate on percentage of...
Resource Type:: Article
Full Text:: . CORDEN. 1986. Controlling wood deterioration with fumigants: A review. Forest Prod. J. 36(10):26-34

ScholarsArchive@OSU

Durability of a changing western redcedar resource

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

A Note on the Sensitivity of A Closed-Tube Bioassay To Volatile Methylisothiocyanate Residues In Fumigant-Treated Wood

Evaluating potential decay control agents with a small block test

Influence of red alder competition on cambial phenology and latewood formation in Douglas-fir

Decomposition of Basamid in Douglas-fir heartwood: Laboratory studies of a potential wood fumigant

Decomposition of metham sodium to methylisothiocyanate as affected by wood species, temperature, and moisture content

Bioassaying wood preservatives with Aspergillus niger

Controlling decay fungi in Douglas-fir heartwood with pelletized sodium n-methyldithiocarbamate

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