• British Columbia
• Alberta
• Saskatchewan
• Manitoba
• Ontario southwest
• Ontario east
• Quebec
• Atlantic

Please note that the Société de protection des plantes du Québec (SPPQ) / Quebec Society of Plant Protection (QSPP) and the Plant Pathology Society of Alberta (PPSA) are separate societies and not Chapters of CPS. They are on this site just for the convenience of the plant pathology community. *