This document specifies a method for the determination of the curative action of a wood preservative against infestation by Anobium punctatum (De Geer) when the product is applied as a surface treatment to wood. This method is applicable to any surface-applied treatment that is intended to prevent emergence of adult beetles but not intended to kill larvae in infested timber. NOTE 1 This method can be used in conjunction with an ageing procedure, for example EN 73. NOTE 2 Products intended to kill larvae can be tested by the method described in EN 48.