Abstract
Wood blocks (2. 5 X 2. 5 X 30 cm) were treated by diffusion treatment with boric acid/borax, alone or with PCP-Na. Both treatment and untreated blocks were buried in soil for 15 wk. Mean wt. loss due to termite feeding was 68 for untreated blocks, 32-37 for boric acid/borax alone and 9 with Na-PCP