Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Meloidogyne izalcoensis (Nematoda: Meloidogynidae) on coffee, cabbage, and other crops in Africa.

Abstract

During surveys conducted from 2012 to 2014 to determine the diversity of root knot nematode (RKN) species infecting various crops across 5 African countries, galling symptoms were observed on the roots of various infected crops, suggesting RKN infestation. The causal nematode was identified as Meloidogyne izalcoensis based on esterase (EST) isoenzyme phenotypes, molecular and morphological analyses from infected coffee roots in Kenya (Kabete) and Tanzania (Mufindi), cabbage from Benin (Cotonou) and on tomato and sweet pepper in Tindini and Kianga, Tanzania. This report is thought to extend the known host and geographical ranges of M. izalcoensis, representing the first record for Africa and the first reported infection on cabbage worldwide.