Since Kanda's paper on Korean scale insects in 1942, no work on scale insects has been done in Korea. The author has collected 8 species of scale insects in 5 green houses in Seoul and Suwon, of which 4 species, i.e., Chionaspis kentiae, Chrysomphalus aonidum, Planococcus kraunhiae and Aspidiotus hederae are new to Korea. Dominant species were Planococcus citri and Coccus hesperidum and common species to 4 green houses were Planococcus citri, Coccus hesperidum and Saissitia coffeae.

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