关键词: 宾馆, 蜚蠊, 侵害, 防制

Abstract: Objective To learn about infestation condition of Cockroaches and provide scientific basis for the control in Guiyang. Methods Investigate cockroach density and infestation rate in 5-stars hotel of Guiyang collected randomly by adhesive paper. Results There were three varieties of cockroaches such as Blattella germanica, Periplaneta americana and Periplaneta fuliginasa. Of which, B.germanica was the dominant species which accounted for 97.77%. And P.americana and P.fuliginasa accounted for 1.08% and 1.15% respectively. The Cockroaches density (cockroach/paper/day) was 1.77-12.86, the average was 8.03. The density of cockroach in Chinese meal cook room, Western-style cook room, Western-style pastry and cold meat cook room were 13.84, 10.35, 8.28 and 6.27 respectively. Their infestation rate ranged from 13.19% to 100% and the infestation rate was 48.32% in these investigated units. The cockroach density and average infestation rate dropped by 88.68% and 94.97% respectively after spraying insecticides for one year in five hotels. Conclusion The stars-hotels of Guiyang city were seriously disturbed by B.germanica. It was very important to strengthen surveillance and effective control.