Influence of dose bark cover and endgrain sealing on ethanedinitrile (C<sub>2</sub>N<sub>2</sub>) sorption by pine (<i>Pinus radiata</i> D Don) logs

Authors

  • M.K.D. Hall
  • A.J. Najar-Rodriguez
  • T. Pranamornkith
  • A.R. Adlam
  • A.J. Hall
  • D.W. Brash

DOI:

https://doi.org/10.30843/nzpp.2015.68.5792

Abstract

High sorption by Pinus radiata (D Don) logs may limit insecticidal efficacy of a fumigant by rapidly removing it from the treated headspace The sorption characteristics of a new fumigant ethanedinitrile (EDN) were quantified for recently harvested pine logs and the robustness of a proposed EDN sorption model developed for sawn timber was tested Over a 10h period average concentrations were 173 plusmn;1048724; 07 of the initial dose for logs with sealed ends and 94 1048724;plusmn; 04 for unsealed ends This is a high rate of sorption compared with other fumigants such as methyl bromide A proportional drop in headspace concentration over time was consistent for the two doses (20 and 50 g/m3) evaluated confirming that EDN sorption is influenced by the dose applied Bark cover did not significantly influence EDN sorption A revised sorption model for EDN is proposed here

Published

2015-01-08

How to Cite

Hall, M., Najar-Rodriguez, A., Pranamornkith, T., Adlam, A., Hall, A., & Brash, D. (2015). Influence of dose bark cover and endgrain sealing on ethanedinitrile (C<sub>2</sub>N<sub>2</sub>) sorption by pine (<i>Pinus radiata</i> D Don) logs. New Zealand Plant Protection, 68, 13-18. https://doi.org/10.30843/nzpp.2015.68.5792

Issue

Section

Agrichemicals for plant protection

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