The forests of Eastern Canada are subject to periodic outbreaks of a pest which devastates the trees causing major disruption to the logging industry. This paper gives details of a study to find a criterion by which management policy alternatives could be evaluated in conjunction with a simulation model of the forest. It describes the manner in which the important decision factors, or attributes, were determined and how a value function and a utility function were assessed over these attributes, taking into account the long time horizon involved of 50-100 years