Provides agricultural producers with a comprehensive listing of new, emerging and re-emerging plant diseases throughout the world. Lists sorted by disease, host or pathogen.

Database of fungal pathogens on trees, shrubs, and herbaceous plants. Search by pathogen, host or recording authority.

Commission projects and develop policies to enhance the ability of Australian agriculture to respond to pests, weeds and diseases. Includes corporate and operational plans, projects, members list, publications, and related links.

Search engine covering a wide array of crops, pests, control tactics, regions, organizations, and related topics.

Searchable database of the official names adopted for use by the American Phytopathological Society in its publications. Includes diseases caused by bacteria, fungi, nematodes, phytoplasmas, virus (and virus-like), and miscellaneous diseases/disorders.

Provides an understanding of signaling between plants and pathogens with animated movies and diagrams. Includes database of plant genes regulated in response to infection, and related links.

Resource of many plant diseases, images, and control recommendations from the Oregon state University.

A how to approach on accurate diagnosis, with diagrams and photographs.

Information from an EU-funded research project including a compendium on Verticillium wilts in trees (pdf-format), links to the participating groups and a description of ongoing research.

Discussions and articles on plant environmental stress, its impact and mitigation in agriculture. Includes news, announcements, events, bulletin board, and reference database.