Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of wheat mosaic virus infecting wheat in Western Australia.

Abstract

In eastern Australia, there have been several as yet unconfirmed reports of Wheat mosaic virus (WMoV) infecting wheat. WMoV, previously known as High plains virus (HPV), is transmitted by the wheat curl mite (WCM, Aceria tosichella). It is often found in mixed infections with Wheat streak mosaic virus (WSMV), also transmitted by WCM. WSMV was first identified in Australia in 2003. In October 2012, stunted wheat plants with severe yellow leaf streaking were common in a field experiment near Corrigin in Western Australia (Australia) consisting of 9 wheat cultivars. These symptoms were also common in 2 commercial crops of wheat cv. Mace near Kulin. ELISA and sequencing of virus-specific PCR products confirmed the identity of the pathogen as WMoV. This is thought to be the first confirmed report of WMoV presence in Australia.