Phytophthora tentaculata is a plant pathogen that causes root and stalk rot. It was first isolated in 1993 in a nursery in Germany infecting Chrysanthemum, Verbena, and Delphinium ajacis. It has since been found infecting a Verbena in Majorca, Spain in June 2001 but was thought to be restricted to nurseries in Germany and the Netherlands. Other species have since been found to be infected, Santolina chamaecyparissus (Lavender cotton) in Spain in 2004, Gerbera jamesonii in Italy 2006, and Aucklandia lappa in China in 2008.
- Moralejo, E; M. Puig; W.A. Man in't Veld (29 Jun 2004). "First report of Phytophthora tentaculata on Verbena sp. in Spain". The British Society for Plant Pathology. Retrieved 31 May 2009.
- Álvarez, L. A.; Pérez-Sierra, A.; León, M.; Armengol, J.; García-Jiménez, J. (2006). "Lavender cotton root rot: a new host of Phytophthora tentaculata found in Spain". Plant Disease. American Phytopathological Society. 90 (4): 523. doi:10.1094/PD-90-0523A.
- Cristinzio, G; Camele, I.; Marcone, C (February 2006). "First report of Phytophthora tentaculata on Gerbera in Italy (Campania)". AGRIS. Retrieved 31 May 2009.
- Meng, J; Y. C. Wang (September 2008). "First Report of Stalk Rot Caused by Phytophthora tentaculata on Aucklandia lappa in China". Plant Disease. The American Phytopathological Society. 92 (9): 1365. doi:10.1094/PDIS-92-9-1365B. Retrieved 31 May 2009.
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