Distribution of methylisothiocyanate and chloropicrin in boles or roots of Douglas-fir trees

Jeffrey J Morrell; Paul G Forsyth; Walt G Thies

doi:10.1139/x94-300

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Distribution of methylisothiocyanate and chloropicrin in boles or roots of Douglas-fir trees

Journal article

Peer reviewed

Distribution of methylisothiocyanate and chloropicrin in boles or roots of Douglas-fir trees

Jeffrey J Morrell, Paul G Forsyth and Walt G Thies

Canadian Journal of Forest Research, Vol.24(12), pp.2324-2329

1994

DOI: https://doi.org/10.1139/x94-300

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Abstract

Forestry

fumigants

pesticides

Phellinus

diffusion

disease control

plant diseases

disinfectants

Pseudotsuga menziesii

The distribution of the fumigants methylisothiocyanate (MITC), Vorlex, and chloropicrin, used to control Phellinus weirii (Murr.) Gilb., was assessed 10 years after application to sites near the bases of living Douglas fir ( Pseudotsuga menziesii(Mirb.) Franco). MITC was detected up to 8 m above the original application site, and fumigants were present at the highest levels near the pith of the tree. MITC was detectable as far as 2.1 m down the roots in trees treated with the largest dosage, and Vorlex was detectable 1.5 m from the application site. Levels of chloropicrin were generally greater than levels of MITC or Vorlex, but chloropicrin was detected only up to 3 m above the application site; lower water solubility probably accounted for the restricted diffusion of this chemical. The results indicate that fumigants can diffuse for considerable distances through Douglas-fir boles and roots. Further studies are underway to establish the efficacy of the concentrations measured in these trees.

Details

Title: Distribution of methylisothiocyanate and chloropicrin in boles or roots of Douglas-fir trees
Authors: Jeffrey J Morrell (Author) - Oregon State University
Paul G Forsyth (Author)
Walt G Thies (Author)
Publication details: Canadian Journal of Forest Research, Vol.24(12), pp.2324-2329
Publisher: Canadian Science Publishing
Date published: 1994
DOI: 10.1139/x94-300
ISSN: 0045-5067; 1208-6037; 0045-5067
Organisation Unit: University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life
Language: English
Record Identifier: 99513853202621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Forestry

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