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영어

National Institute of Forest Science in Korea (NIFoS) has been monitored number of individuals for major insect pests, especially Hyphantria cunea (Lepidoptera), and developed the phenological models to predict the effect of climate change. We also investigated fauna of insect pests, damage characteristics, ecological traits, and so on in human-dominated landscapes since 2018. Four tree species, such as cherry tree, zelkova tree, maple tree, and Mugunghwa were chosen for initial stage of the study considered with number of planted trees in Korea and relative preference in societies. Two invasive species belonging to Hemiptera, Metcalfa pruinosa and Ricania shantungensis, were major insect pests on the most tree species in general. Some aphid species, such as Tinocallis zelkowae, Periphyllus californiensis, and Aphis gossypii also damaged to zelkova tree, maple tree, and Mugunghwa, respectively. In cherry trees, damage rates and characteristics of Synanthedon bicingulata (Lepidoptera) and Aromia bungii (Cerambycidae) were investigated. Entrance hole of larvae of S. icingulata was found from the most cherry trees planted along road verges irrespective of tree ages, while damage of A. bungii was generally found from old trees above 30 cm in diameter at breast height, especially planted on dry environments like road verges. To manage the insect pests on urban trees, insecticides are primarily used by spray or tree injection as chemical control methods. However, the use of chemical control methods are faced a lot of challenges due to the change of trend on the attention for human health, and thus, development of environmental friendly methods is becoming more important. For this reason, we have been tried to identify the pheromones and to develop the organic materials.