Field trials were carried out in Australia on Coptotermes acinaciformis to evaluate the efficacy of various bifenthrin formulations. One trial tested plywood made by Zelam at their research facility in New Zealand and compared three emulsifiable concentrate formulations (EC), a suspension concentrate (SC) and an encapsulated formulation (CS). A second trial compared laminated veneer lumber (LVL) made at a commercial mill in New Zealand and compared EC and CS formulations. A third trial used LVL made at commercial mills in New Zealand and Australia and compared CS and SC formulations respectively. Trial results show zero attack on the engineered wood samples when glueline and surface applications were used. Glueline only treatments resulted in some surface grazing but no penetration into centre veneers. In all trials there was no significant differences in efficacy between the formulation types.

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