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First report of Taro vein chlorosis virus on Taro (Colocasia esculenta) in the U.S. Territory of American Samoa.

Diversity of root-knot nematodes of the genus Meloidogyne Göeldi, 1892 (Nematoda: Meloidogynidae) associated with olive plants and environmental cues regarding their distribution in southern Spain.

Atibalentja, N. ; Fiafia, S. T. ; Gosai, R. C. ; Melzer, M. J.

Plant Disease 2018 Vol 102 No. 4 pp. 828-829;

Abstract

In August of 2016, taro plants (cv. Samoa red 2) exhibiting leaf-vein chlorosis and streaks along the petioles, similar to the symptoms caused by Taro vein chlorosis virus (TaVCV, family Rhabdoviridae, genus Nucleorhabdovirus), were observed on the extension plot of the American Samoa Community College's Division of Agriculture, Community, and Natural Resources. Only a few (<5%) plants exhibited symptoms, and no symptoms were observed at two nearby taro farms. Based on the results of RT-polymerase chain reaction and dot blot hybridization assays, the pathogen was confirmed as TaVCV. This is thought to be the first report of TaVCV infecting taro in American Samoa and only the second report in the USA.