Resistance of Borate-Treated Rubberwood Chipboard to the Formosan Subterranean Termite (lsoptera: Rhinotermitidae)
Both no-choice and two-choice 4-week AWPA laboratory tests were performed to evaluate the resistance of borate-treated rubberwood (Hevea brasiliensis) chipboard prepared from a commercial mill run, against the Formosan subterranean termite Coptotermes fonnosanus. Boric acid (technical granular) was...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | E-Article |
| Language: | English |
| Published: |
California State University
2004
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/16075/1/Resistance%20of%20Borate-Treated%20Rubberwood%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/16075/ https://www.researchgate.net/publication/259000695 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Both no-choice and two-choice 4-week AWPA laboratory tests were performed to evaluate the resistance of borate-treated rubberwood (Hevea brasiliensis) chipboard prepared from a commercial mill run, against the Formosan subterranean termite Coptotermes fonnosanus. Boric acid (technical granular) was incorporated into the boards during
manufacture to achieve loadings of 1.0% or 1.1% boric acid equivalents
(BAE). In the no-choice test, both the untreated chipboard and solid
rubberwood controls sustained heavy termite attack (respective mean
visual ratings of 4.6 and 2.7 on a 10-pointAWPA scale). while the two
retentions of borate-treated chipboard showed only light grazing (mean
rating 9.2). The two-choice test demonstrated a preference of termites
for solid rubberwood (mean rating 2.4) instead of untreated chipboard
(rating 8.4), and for untreated (mean rating 8.4 and 8.8) instead of
borate-treated (mean ratings 9.8 & 9) chipboards. Complete termite
mortality in the presence ofborate-treated chipboard in both laboratory
tests demonstrates the toxicity of borates to Formosan subterranean
termites. |
|---|