B.M. Ahmed, J.R.J. French, P. Vinden
Evaluation of borate formulations as wood preservatives to control subterranean termites in Australia
The termiticidal efficacy of sodium octaborate tetrahydrate,
boric acid, borester-7, and tri-methyl borate as
wood preservatives was evaluated after each was
impregnated into seasoned sapwood of Pinus radiata D.
Don and Eucalyptus regnans F. Muell in laboratory bioassay
against Coptotermes acinaciformis (Froggatt).
There was clear difference between the different borate
retentions in treated and untreated blocks, mass loss,
and mortality rate of the termite used in the bioassay
units. After 8 weeks of laboratory bioassay, the results
suggested that borate was toxic to termites even at
0.24% m/m BAE and caused significant termite mortality,
but termites were not deterred from attacking the borate-treated
timber at a higher retention of >2.0% m/m BAE.
These laboratory results indicated that the minimum
borate treatment required to protect timber against termite
attack and damage was >1.0% m/m BAE.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 58, 07/2004
Pages: 446 - 454
Show full article (external site)
Show all available items of this journal
Search
