Situation of Bursaphelenchus xylophilus and Monochamus alternatus in Korea Republic
In 1988, Bursaphelenchus xylophilus (EPPO A1 quarantine pest) was reported for the first time in Pusan, Korea Republic (EPPO RS 514/13, 1991), in the south-east of the country facing the Japanese island of Kyushu. A survey was conducted to identify the distribution of the nematode in the country. Results showed that B. xylophilus is limited to Pusan and that of the 14 species of bark beetles studied, only Monochamus alternatus is a vector of the nematode. M. alternatus appears to be limited to Pusan, Masan, Chinhae, Chungmu, Geoea, Samchunpo, Goseong, Changwon, Tongyeong, Youngkwang, Yeosu, Sooncheun and Yangsan (as far as the EPPO Secretariat could check, most of these localities are situated in the region of Pusan). From 1989 to 1994, a national control programme of aerial spraying against the insect vector had contributed to reducing the number of dead pine trees and to limit the spread of the disease. In 1994, the number of infested trees had fallen by 90 % compared with the number in 1989. In timber, the nematode is eliminated by using kiln drying.
Sources
Moon YilSeong; Lee SangMyeong; Park JiDoo; Yeo WoonHong (1995) [Distribution and control of the pine wood nematode, Bursaphelenchus xylophilus and its vector the Japanese pine swayer, Monochamus alternatus.]
FRI Journal of Forest Science (Seoul), 51, 119-126.