Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Identification of new alternative weed hosts for Iris yellow spot virus in the Pacific Northwest.

Abstract

Samples of Iris yellow spot virus (IRSV) were obtained from maize, wheat, grapes, mint, carrot, lucerne and sugar beet from Idaho and Washington, USA during 2006. IRSV is a Thrips tabaci-transmitted plant pathogen, and was observed via molecular assays on volunteer onions and the following weeds: Amaranthus retroflexus, Tribulus terrestris, Kochia scoparia [Bassia scoparia], Lactuca serriola and Chenopodium album.