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Creator:: Wang, Yu, Chang, Jianmin, Morrell, Jeffrey J., Freitag, Camille M., and Karchesy, Joseph J.
Abstract:: Bacillus subtilis and essential oils have been explored separately for their ability to limit colonization by wood stain and mold fungi, but neither approach has been completely effective. One alternative strategy would be to combine the bacterial biocontrol with one or more natural products extracts. In this report, the ability...
Resource Type:: Article
Full Text:: OF WOOD Yu Wang, a Jianmin Chang,* ,a Jeffrey J. Morrell, b Camille M. Freitag, b and

Creator:: Ye, Min and Morrell, Jeffrey J.
Abstract:: The potential for preservative migration from treated wood exposed in or above aquatic environments has become a major concern in some parts of the United States. Best management practices (BMP) were designed to decrease the potential environmental footprint of treated wood, but there are few studies assessing the efficacy of...
Resource Type:: Article
Full Text:: heating processes on loss of copper from copper azole Type B (CA) and alkaline copper quaternary compound

Creator:: Schowalter, Timothy D. and Morrell, Jeffrey J.
Abstract:: The chemical composition of the boles of 14 Douglas-fir trees growing in the central Willamette Valley of western Oregon was examined to determine whether differences in various chemical component levels might help to explain arthropod or microbial colonization patterns. Levels of nearly all cations as well as N and P...
Resource Type:: Article
Full Text:: ). Holzforschung 19: 129-1 34. LEVI, M. P, AND E. B. COWLIN(;. 1968. role of nitrogen in wood deterioration. V

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: High concentrations of the fumigant methylisothiocyanate (MITC) will effectively control decay fungi in large wood structures, but the fungitoxicity of low MITC concentrations and the influence of wood moisture content (MC) on its performance are not well understood. The MC of Douglas-fir heartwood greatly influenced the susceptibility of the decay...
Resource Type:: Article
Full Text:: times more MITC, but required 4 times the exposure period to control P. carbonica, than wood above the

Creator:: Morrell, Jeffrey J., Sexton, Camille M., and Lebow, Stan
Abstract:: Mylone@ and tridipam are two solid chemicals that decompose to produce methylisothiocyanate (MIT), a highly effective wood fumigant. In this study, two techniques -- a rapid, test-tube method and small-scale, wood-block assay -- were used to determine the effect of the pH of various chemical buffers on the decomposition of...
Resource Type:: Article
Full Text:: , fungal survival was not affected 1 week after chemical treatment. Complete control of P. carbonica

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: The influence of moisture content (MC) and conventional preservative treatment on methylisothiocyanate (MIT) sorption and diffusion were investigated in Douglas-fir wood. In wood at 0% MC, the ratio of equilibrium MIT adsorption to desorption concentrations was low (0.2), but it increased rapidly to about 0.94 above 18% MC. Partition coefficients...
Resource Type:: Article
Full Text:: arsenate did not influence MIT sorption or diffusion in sapwood at 15% MC, but impregnation with P-9 Type

Creator:: Morrell, Jeffrey J., Corden, M. E. (Malcolm E.), and Oregon State University. Department of Forest Products
Abstract:: This seventh annual report outlines our continued progress on each of six objectives. Improved fumigants: We continue to evaluate previously established field tests, which inlicate that chioropicrin continues to protect Douglas-fir poles after 17 years and piling after 12 years. Vorlex treated poles are being gradually recolonized by decay fungi,...
Resource Type:: Technical Report
Full Text:: 83 1. 4 1 p( 77 8 19 87 • • . i This seventh

Creator:: Morrell, Jeffrey J., Corden, M. E. (Malcolm E.), and Oregon State University. Department of Forest Products
Abstract:: Evaluations of previously established field trials indicate that chioropicrin and Vorlex continue to provide a diminishing level of protection to Douglas-fir poles. Tests of solid methylisothiocyanate (MITC), now in their thirteenth year, indicate that this chemical continues to prevent recolonization of Douglas-fir poles by decay fungi. MITC appears to provide...
Resource Type:: Technical Report
Full Text:: 83 1. 4 1 p( 77 8 19 91 ABSTRACT Evaluations

Creator:: Mitchoff, M. E. and Morrell, Jeffrey J.
Abstract:: Alder represents an abundant but underutilized resource that has little natural resistance to decay. Treated alder might be used for stakes, posts, or other nonstructural applications. The performance of alder treated with chromated copper arsenate (CCA), copper 8 quinolinolate, zinc naphthenate (ZN), or thiocyanomethylthiobenzothiazole (TCMTB) was assessed in soil block...
Resource Type:: Article
Full Text:: alder cubes against (a) P. placenta, (b) C. versicolor, and (c) G. trabeum in a soil block test as

Creator:: Morrell, Jeffrey J., Freitag, Camille M., Rhatigan, R., Love, C., and Mankowski, Mark
Resource Type:: Technical Report
Full Text:: MITC-FUME in Douglas-fir and southern pine poles . . . . . . . 7 B. Ability of Water-Based Diffusibles

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