Performance of Two Imidacloprid-Treated Malaysian Hardwoods in an Accelerated Aboveground Termite Test
The performance of the chloronicotinyl insecticide imidacloprid as a wood protecting termiticide, under a simulated Malaysian biological hazard class H2 (exposure aboveground indoors against termites and wood borers), was evaluated by a novel termite field test protocol. Replicate end-grain seale...
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| Format: | E-Article |
| Language: | English |
| Published: |
IRGWP
2005
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/16073/1/Performance%20of%20two%20imidacloprid%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/16073/ https://www.researchgate.net/publication/291696229 |
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| Institution: | Universiti Malaysia Sarawak |
| Language: | English |
| Summary: | The performance of the chloronicotinyl insecticide imidacloprid as a wood protecting
termiticide, under a simulated Malaysian biological hazard class H2 (exposure
aboveground indoors against termites and wood borers), was evaluated by a novel termite
field test protocol. Replicate end-grain sealed air dried test blocks (20 x 20 x 20 mm) of
two Malaysian hardwoods, Kembang Semangkok (Scaphium spp.) and Rubberwood
(Hevea brasiliensis) were vacuum-atmospheric pressure-impregnated in the laboratory in
butanolic solution of imidacloprid to target retention of 0 (control), 1 and 3 g/m3. Halve
the replicated blocks were then subjected to a prescribed water-leaching cycle, and
conditioned blocks then installed in a novel aboveground H2 hazard class-type termite
field test where Coptotermes curvignathus are prevalent. After 8 weeks exposure,
untreated hardwoods were severely (termite ratings 1-2) or moderately attacked (ratings:
6.3-7.5), while, with the exception of occasional light grazing, none of the leached nor
non-leached test blocks treated with imidacloprid to both target termiticide retention were
regarded to be attacked (ratings: 9.8-10). |
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