New Zealand Plant Protection Society
- Professional society researching and publishing biology, ecology and control of weeds, pests, pathogens and beneficial organisms in agriculture, horticulture, forestry and natural ecosystems.
- http://www.hortnet.co.nz/publications/nzpps/

Swiss Society for Phytiatry
- Involved in exchange of information between specialists in phytopathology, entomology and weed science. Contains list of meetings, membership form, and relevant links.
- http://sg-phytomed.ch/english/index.html

Phytopathological Society of Japan
- Promotes the increase and diffusion of knowledge relating to plant diseases and their control. Contains abstracts of the societies' journal, membership information, details of local and international meetings, and relevant links.
- http://www.ppsj.org/index_en.html

German Phytomedical Society
- Promotes and disseminates information relating to plant pathology, entomology and weeds at a national and international level.
- http://dpg.phytomedizin.org/

Polish Phytopathological Society
- General information, meetings list, publications, photo gallery, and related links.
- http://www.au.poznan.pl/ptfit/index_en.html

Italian Phytopathological Society
- Contains general information and journal details with abstracts.
- http://www.agr.unipi.it/sipav/index.html

Australasian Plant Pathology Society
- Advancement and dissemination of knowledge of phytopathology and its practice, particularly in relation to the Australian region.
- http://www.australasianplantpathologysociety.org.au/

Mediterranean Phytopathological Union
- Helps plant pathologists contact one another, and spreads information relating to Mediterranean diseases.
- http://www.unifi.it/istituzioni/mpu

European Foundation for Plant Pathology
- Promotes scientific and technical cooperation in plant health in Europe and facilitates the exchange of information between pathologists who are members of national or regional societies.
- http://www.efpp.net/

International Society of Plant Pathology
- Worldwide organization supporting the development and dissemination of knowledge about plant diseases and management. Includes links to national, regional and international associated societies.
- http://www.isppweb.org/

Canadian Phytopathological Society
- Promotes the development and dissemination of plant pathology in Canada through annual meetings, publications and electronic resources.
- http://www.cps-scp.ca/

Southern African Society for Plant Pathology
- Involved in gathering and disseminating information in southern Africa through publications and seminars.
- http://www.saspp.co.za/

British Society for Plant Pathology
- Founded for the study and advancement of plant pathology. Publishes several journals and disease reports.
- http://www.bspp.org.uk/