The Korea Forest Service has designated seven alpine tree species—Abies koreana, A. nephrolepis, Juniperus chinensis, Picea jezoensis, Pinus pumila, Taxus cuspidata, and Thuja koraiensis—as threatened with extinction in Korea. In 2023, we conducted a study on the seasonal occurrence of insect pests, focusing mainly on two coleopteran taxa (Cerambycidae and Scolytinae) and two hemipteran taxa (Aphrophoridae and Cicadellidae) in subalpine forests dominated by A. koreana, A. nephrolepis, Picea jezoensis, Thuja koraiensis, and Taxus cuspidata. We utilized three types of traps—Malaise trap, Lindgren funnel trap, and window trap—in eight investigation locations in Korea. In this presentation, we present the study results and discuss the effects of insect pests on alpine coniferous trees in Korea.

• Jongok Lim(Department of Life and Environmental Sciences, Wonkwang University, Iksan, Republic of Korea)
• Dong-Pyeo Lyu(Department of Forest and Landscaping, Sangji University, Wonju, Republic of Korea)
• Jun-Gi Byeon(Baekdudaegan Bioresources Conservation Department, Baekdudaegan Nat’l Arboretum, Bonghwa, Republic of Korea)
• Haneul Yu(Department of Life and Environmental Sciences, Wonkwang University, Iksan, Republic of Korea)
• Sung-Il Cho(Department of Life and Environmental Sciences, Wonkwang University, Iksan, Republic of Korea)
• JuNu Bak(Department of Forest and Landscaping, Sangji University, Wonju, Republic of Korea)
• Hojin Jeon(Department of Life and Environmental Sciences, Wonkwang University, Iksan, Republic of Korea)
• Jongman Park(Department of Life and Environmental Sciences, Wonkwang University, Iksan, Republic of Korea)