关键词: 蟑螂, 综合防制, 环境治理, 密度下降率, 成本分析

Abstract: Objective To analyze the effect of integrated cockroach control and the cost of each component in a catering service environment, so as to provide a reference for cockroach control strategy and cost control. Methods In a catering service environment (86.5 m², including kitchen and dining room), integrated pest management (IPM) in combination with insecticide resistance assessment (glass bottle method), density surveillance (sticky trapping method), environmental management, physical control, chemical control, and health education were used. Then the cockroach density changes were continuously monitored and the cost of each component (labor, insecticides, consumables, equipment, etc.) was recorded. Excel 2021 software was used for data analysis and description. Results Under four spray-type insecticides treatments, all the mortality rates of Blattella germanica exceeded 90.00%. This control process lasted 4 weeks, including 6 times of density surveillance and 4 times of integrated control. The density was 43.50 cockroaches/night·trap before control. The control was conducted once a week. The density declined to 6.50, 3.50, and 0.50 cockroaches/night·trap at weeks 1-3, respectively. Then the density declined to zero at week 4 and remained at zero in the following five months. The costs of this control totaled 1 723.22 yuan (equivalent to 19.92 yuan/m²). The labor cost was the highest, amounting to 1 470.00 yuan and accounting for 85.31% of the total cost. The labor cost during the first integrated control, which included comprehensive environmental management, accounted for 64.29% of the total labor cost. Chemical control insecticides cost ranked second, which accounted for 6.59% of the total cost. Conclusions For cockroach control in the catering service environment, especially with a high cockroach density, IPM strategy based on environmental management can achieve rapid and long-lasting cockroach control. Despite the high labor cost in the early stage, the cost in the later stage will decrease to a level similar to that of chemical control alone. This is an environmentally friendly and sustainable control strategy.

Key words: Cockroach, Integrated control, Environmental management, Density reduction rate, Cost analysis