|Late blight of potato (Phytophthora infestans) on a potato leaf|
Phytophthora is a genus of plant-damaging Oomycetes (water molds), whose member species are capable of causing enormous economic losses on crops worldwide, as well as environmental damage in natural ecosystems. The genus was first described by Heinrich Anton de Bary in 1875. Approximately 100 species have been described, although 100-500 undiscovered Phytophthora species are believed to exist.
Important species of Phytophthora:
- P. capsici
- P. drechsleri
- P. fragariae
- P. infestans
- P. parasitica
- P. porri
- P. primulae
- P. ramorum
- Brasier CM, (2009). Phytophthora biodiversity: how many Phytophthora species are there?. In: Goheen EM, Frankel SJ, eds. Phytophthoras in Forests and Natural Ecosystems. Albany, CA, USA: USDA Forest Service: General Technical Report PSW-GTR-221, 101–15.