The paper presents some impression of the past and presents developments underway in Canada by Plant Protection with respect to information systems, the development of pest risk analysis and the management of pest information in general. The collection, organization, certification and automated manipulation of this information is essential if importing and exporting nations are to protect their agricultural and forest resources and maintain and improve the credibility of their phytosanitary certification systems. It adds that on the international scene, Canada is participating in several initiatives, promoting others and exploring all known systems that would assist in the collection, verification, manipulation and communication of plant pest information (NAPPO, FAO, NAPIS, USDA-ARS, among others. What is now needed is access to accurate data for the ecological variables that govern the existence of specific pest populations in other countries and it should be relatively easy to then correlate this information with the bioclimatology and other data that appears to exist in abundance within Canada and the United States. (MIBA)