Objective To investigate the resistance of Aedes albopictus to five insecticides and provide evidence for rational application of insecticides.Methods WHO-recommended larva dipping method was used to test medium lethal concentration of the larvae at their fourth instar in this test, exposed to the five commonly used inseticides and to assess the levels of resistance in Ae. albopictus. Results The LC₅₀ of abate, deltamethrin, betacypermethri, and fenobucarb was 0.001 3, 0.001 4, 0.005 1, and 1.568 5 mg/L. The average resistance was 4.3, 1.4, 2.4, and 1.0 fold. Resistance to acetofenat was so high, beyond the test range. Conclusion In Wuhan city, the field monitoring of Ae. albopictus on insecticide resistance is crucial for the prevention and control of dengue fever. It was necessary to apply integrated measures and use insecticides scientifically in controlling Ae. albopictus.

Objective To investigate the influencing factors of quality control on pest management services for the external environment, provide evidence to improve the service quality of pest control. Methods The performance of pest control in the external environment of community throughout the city that pest control operation(PCO)companies contracted with was evaluated by a project supervision panel through public bidding, as the third party specialist agency, and on a commission basis by Office of Patriotic Health Movement of Wuhan according to its internal supervision scheme. Results The results of evaluation on the performance of pest control in 712 to 1 006 community units in external environment that PCO companies contracted with from 2010 to 2014 were obtained. The five years'rodent density of extending 2 000 m was ≤2.30, Path index of mosquito larvae and pupae ≤0.73, and the positive rate of cockroach adults and nymphs indoor ≤1.63％, the positive rate of fly larvae and pupae ≤8.91%. The results met the required standards set forth by the National Patriotic Health Campaign Committee. Conclusion Through the supervising evaluation campaign, the quality of pest control in PCO companies was improved, the density of the four pests in the external environment of community of Wuhan city declined, the wellbeing of the residents was enhanced. Suggestions for improvement of the common issues found during the supervising evaluation process were made.

Objective To investigate the resistance of Blattella germanica against five insecticides and customize future application of insecticides.Methods The B. germanica used in this study were the first filial generation (F1 generation 1). The insecticide film method recommended by the World Health Organization was used to determine the median knock-down time (KT₅₀) and the corresponding 95% confidence interval (95%CI), knock-down rate, and mortality rate of B. germanica exposed to the five commonly used insecticides and to assess the levels of resistance of B. germanica. Results The average resistance of B. germanica strains from Hankou, Hanyang and Wuchang against propoxur, ehlorpyrifos, betacypermethri and azamethiphos was 1.4-2.2, 1.5-1.7, 2.8-3.1, 2.5-2.9 fold. Its resistance against tetramethrin was beyond the test range. Conclusion It was advised to apply integrated control measures and use insecticides strategically in controlling B. germanica.

Objective To perform various forms of intervention, investigate the effective model and method of health education for rodent control in community, and evaluate the intervention effect, and to provide a basis for proper education measures for rodent control in community. Methods One or two communities were selected from each of 4 subdistricts in Jiang'an district and Jiang'han district of Wuhan, China by stratified cluster sampling; 7 communities were selected, and the residents in the 7 communities were divided into experimental group and control group. The individuals above 18 years of age were selected from each group to undergo knowledge-attitude-practice questionnaire survey. Various health intervention measures were performed on the experimental group. The intervention effect was evaluated by comparison. Results In the experimental group, the proportion of residents with the knowledge of rodent control and related information increased after intervention (P<0.05), and the changes were significant in terms of most items in the questionnaire (P<0.05). The density of rodents, as measured by night trapping method, were 4.5% before intervention and 0.8% after intervention (P<0.01). Conclusion During rodent control in community, various health education activities, as well as management for public environment and active cooperation between people in community, can increase the knowledge of rodent control among residents and in turn improve the effect of rodent control.

　　【Abstract】　Objective　To study the technique to control rodents in sewers of urban residential areas. Methods　Contrast experiment was done in urban residential areas of Wuhan city. Wax block baits was hanged in the sewers according to operating instruction for 6 weeks in the tested areas, while no control measure was taken in the control. The infestation rate of rodents was investigated in the sewer before and after taking control measure. Results　The average rodent density was 68.5% in the tested areas and control areas before controlling, however, that in the tested areas reached 96.4% after control for 6 weeks, and the relative population index was 3.1. Conclusion　It is effective to control rodent according to the operational instruction in the residential areas.