Two types of phoxim treated plywood bonded by phenolic resin glue and urea resin glue were challenged with termites of Coptotermes formosanus Shiraki in laboratory. It was found that the sawdust of phoxim treated plywood bonded by phenolic resin glue was not active or did not kill termites of Coptotermes formosanus Shiraki within the test period. Moreover, the phoxim treated plywood bonded by phenolic resin glue did not prevent damage from termite attack. At the end of the test period, the plywood mass loss rate was about 21.81%. The gas chromatography was used to estimate the degradation rate of phoxim in phenolic and urea resin glue and the recovery rate of phoxim in plywood bonded by phenolic and urea resin glue. The results of analysis indicated that 7.48% of phoxim in phenolic resin glue was recovered after aging 8 hrs, and only traces of phoxim in plywood which was treated with phoxim and bonded by phenolic resin glue were found.

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