关键词: 蜚蠊, 监测方法, 粘捕法, 目测法, 侵害率

Abstract: Objective To investigate the common species, population density, and seasonal variation of cockroaches in residential areas and surroundings in China and the surveillance results of cockroaches based on the sticky trap method versus visual observation, and to provide a scientific basis for the prevention and control of cockroaches infestations. Methods The cockroach surveillance data were collected from national surveillance sites of the National Vectors Surveillance in China in 2018. The population density was compared between different species or cockroaches in different habitats or provinces, and its seasonal variation was analyzed. Results The cockroach infestation rate monitored by the sticky trap method was 6.70%, and among the predominant cockroaches, Blattella germanica was the predominant species and accounted for 94.81%, Periplaneta americana accounted for 2.11%, and other cockroaches accounted for 3.08%. The cockroach infestation rate was 3.58% according to visual observation, with 1.13% for Periplaneta and 2.71% for Blattella. Conclusion Blattella germanica is the dominant species in human habitats and surroundings in China. The cockroach infestation rate monitored by the sticky trap method is higher than that monitored by visual inspection, and visual inspection is more sensitive to the density surveillance of Periplaneta. The surveillance results suggest that surveillance and control of cockroaches should be strengthened in open markets and restaurants.

Key words: Cockroach, Surveillance method, Sticky trap method, Visual inspection, Infestation rate