Parasitic wasps are a good source of natural enemies for pest control. Due to the presence of unique biodiversity in Ulleungdo and Dokdo Islands, we surveyed aphid parasitoids in these two islands. We collected aphids and their mummies then identified emerged wasps in both morphological and molecular ways. We found 6 species of aphid parasitoids belongs to Aphelinidae and Braconidae. Two species of the genus Aphelinus belongs to Aphelinidae were emerged from Aphis nasturtii and Macrosiphoniella formosatemisiae. Three species of the genus Aphidius belongs to Braconidae were emerged from Ahpis rumicis, M. formosatemisiae and Capitophorus elaeagni. One species of the genus Lysiphlebia belongs to Braconidae was emerged from Aphis gossypii, Molecular analysis provided genetic informations for species diagnosis of parasitoids. We also analyzed genetic and ecological informations of identified parasitoids to evaluate potential source of natural enemies.

• Hwal-Su Hwang(Department of Applied Biosciences, Kyungpook National University)
• Duck-Oung Jung(Department of Applied Biosciences, Kyungpook National University/Sustainable Agriculture Research Center, Kyungpook National University)
• Kyeong-Yeoll Lee(Department of Applied Biosciences, Kyungpook National University/Sustainable Agriculture Research Center, Kyungpook National University)