Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of tomato spotted wilt virus infecting Arachis hypogaea in Korea.

Abstract

Arachis hypogaea, commonly known as the peanut or the groundnut, is a crop primarily grown in Korea for its edible seeds and seed oils. During a survey in 2017–18, peanut plants in Andong and Gochang in the South Korean provinces of Gyeongbuk and Jeonbuk were found to have devastating tospovirus-like symptoms, including foliar chlorotic ring spots, and yellowing. Initial diagnosis using tomato spotted wilt virus (TSWV) Immunostrip Tests (Agdia, IN) yielded positive results in all six peanut samples. To confirm the presence of TSWV, the symptomatic leaf samples were tested using reverse transcription (RT-)PCR. Based on sequence comparison to known isolates, the causal agent was confirmed as TSMV. This virus has been reported in soyabean in Korea. This is thought to be the first report of the occurrence of TSWV in peanuts in the country.