We analyzed trends of ants intercepted on imported plants and lumber over the past 30 years, using data extracted from the Pest Information System (PIS). There were 1,629 cases of about 112 species (5 subfamilies, 45 genera) from planting plants such as Asparagales, Alismatales, and Saxifragales, and 2,217 cases of about 86 species (7 subfamilies, 42 genera) from lumbers such as square lumber, pellets, and solid wood. For intercepted trends by continent, Asia was the most frequently detected at 91%, followed by Europe at 1% and North America at nearly 1%. Among Asian countries, Malaysia (27%) represented the highest number of interceptions, followed closely by Indonesia at 26%.

• Yunjong Han(Plant Quarantine Technology Center, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea)
• Soo Jung Suh(Plant Quarantine Technology Center, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea)