EPPO Global Database

Phytophthora ramorum(PHYTRA)

Distribution details in India (Kerala)

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2020: Absent, invalid record
From CABI Disease map 978 (2013): Present, restricted distribution
Comments
In 2011, a serious disease of nutmeg (Myristica fragrans) was observed in several districts of Kerala. It was first attributed to Phytophthora ramorum (Mathew and Beena, 2012), but further investigations have shown that other Phytophthora species were causing this disease. Nutmeg isolates were found to be hybrid species: P. citrophthora x P. meadii and P. citrophthora x P. tropicalis for which the names P. citromeadii and P. citrocaptalis have been proposed, respectively (Anandaraj et al., 2020).
References
* Anandaraj M, Mathew SK, Eapen SJ, Cissin J, Rosana B, Bhai RS (2020) Morphological and molecular intervention in identifying Phytophthora spp. causing leaf and nut fall in nutmeg (Myristica fragrans Houtt.). European Journal of Plant Pathology 156, 373-386.

* Mathew SK, Beena S (2012) A new record of Phytophthora ramorum causing leaf fall and shoot rot of nutmeg (Myristica fragrans). Journal of Mycology and Plant Pathology 42(4), 529-530.