This study was conducted to monitor and prevent outbreak of insect pestsin dredged soil dumping area
after completion of dredging construction in Masan City. Monitoring was carried out using tent trap, colored sticky
trap, and CDC light trap. A total of 217,073 individuals belonging to 23 species from 10 families in 3 orders were
collected. In overwintering survey using tent trap, 3 species were collected. 2 species (Leptocera fuscipennis
(Haliday) and Ephydra japonica Miyagi) of them were outbreak species. In color sticky trap, more than 96% of
total individuals were comprised of five species: Urolepis maritima Walker (43%), E. japonica (19%), Fucellia sp. 1
(13%), Philotelma sp. 1 (10%), and Homalometopus sp. 1 (9%). In CDC light trap, three dominant species were
Homalometopus sp. 1 (91%), Glyptotendipes tokunagai Sasa (6%), and L. fuscipennis (1%), representing about 98%
of the total. To prevent damage caused by outbreak of insect pests, we carried out ecological control methods such
as covering the fresh soil in outbreak area, using light trap, pumping up water and so on, minimizing use of
thermal fogging and insect growth regulatorwhen the insect pest population was rapidly increasing.