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

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.

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.

A how to approach on accurate diagnosis, with diagrams and photographs, and control options. Oregon State University Extension, US.

Resource for phytopathology, applied entomology and related sciences on topics like pesticides, plant diseases, pest management, plant pathology education, mycology, viruses, bacteria, nematodes, biological control, turf management, and forest.

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.