In this paper a visual tool for comparing different mountain pine-beetle management pproaches is presented. This comparison tool gives the users the possibility of viewing their information, but more importantly it provides the ability to visually see the similarities and the differences between two simulations. This tool can help users to make decisions regarding their future actions against beetle attacks. The technique used is based on colour indexing combined with the mapping of the strategies into colour histograms. The system is entitled VICO from the phrase Visual Comparison.