Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Meloidogyne Mali causing root galling to elm trees in the UK.

Abstract

In October 2018, nematode infective juveniles were isolated from a soil sample taken from the rhizosphere of elm (Ulmus sp.) trees located at one site in southern England, UK. Statutory sampling at the location was carried out in December 2018, with nematode populations observed infesting the roots of elm trees at this and one additional site. Host roots exhibited the typical large galls, with small cavities, associated with the pest. The causal nematode was identified as Meloidogyne mali based on morphological and molecular analyses. This is thought to be the first report of M. Mali infesting elms in the UK.