The American Phytopathological Society (APS) 3340 Pilot Knob Road St. Paul, MN 55121 USA Phone: +1.651.454.7250 Fax: +1.651.454.0766
APS office hours are 7:30 AM - 3:30 PM CST (1130 to 1930 GMT), Monday through Friday, you can leave a voicemail or complete the form below and your message will be directed to the most appropriate person.