Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Meloidogyne javanica infesting noni (Morinda citrifolia) in Brazil.

Abstract

In February 2014, three-year-old noni (Morinda citrifolia) plants exhibiting yellowing of leaves and interveinal chlorosis associated with severely galled roots, were found in a property located in the municipality of Sao Jose de Mipibu, Rio Grande do Norte, Brazil. Females of root-knot nematodes were observed in the symptom-bearing roots. The egg-laying females were removed from inside the roots for species identification. The causal nematode was identified as Meloidogyne javanica based on morphological and isoenzyme analyses. This is thought to be the first report of M. javanica infesting noni in Brazil.