Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of leaf spot caused by Ascochyta marginata on Aralia elata in Korea.

Abstract

In early September 2007, leaf spot symptoms were first observed on several trees in Hongcheon, Korea. Microscopic observations revealed that the leaf spots were associated with an Ascoschyta sp. Initial symptoms on leaves were circular to irregular, brown to dark brown, becoming zonate, and finally fading to grayish brown in the center with a yellow halo. Morphological characteristics were consistent with previous reports of Ascochyta marginata. Pathogenicity tests was conducted to confirm Koch's potulates. This is thought to be the first report A. marginata on Japanese angelica trees in Korea.