Objective Application of insecticidal barrier spray on vegetation for dengue mosquito vector control to explore rapid and long-term effective control means for dengue mosquito vector control in the urban communities. Methods From June to September of 2015, the phoenix garden of Shaoguan city in Guangdong province was selected as the test site, comparing the effectiveness of barrier spray on vegetation technology to kill the dengue vector mosquito with the ultra low volume spraying. Results The insecticidal barrier spray on vegetation showed quick kill effect, and continuous control effect on Aedes albopictus, reducing mosquito lure egg apparatus index (MOI) lure under 5 for 2 to 4 weeks, the duration of the MOI under 10 for 3 to 6 weeks, the duration of the effective control of mosquito density for 6 to 7 weeks. Pesticide resistance was not detected. Conclusion Insecticidal barrier spray on vegetation can effectively control dengue mosquito vector density more than one month. Compared with ultra-low volume spraying, insecticidal barrier spray on vegetation reduced the cost by 37.50%, saved on-site manpower, pesticides and time, had a positive impact on dengue fever outbreak control in urban communities.

The detection of insecticide resistance in cockroaches is mostly done by a traditional biological test. However, recent studies have indicated that changes in a range of biochemical indicators and resistance genes are highly associated with the occurrence of such resistance, suggesting the possibility of timely, rapid and accurate detection of this occurrence by identifying the changes by biochemical and molecular biological means. Advances in such techniques are summarized in this article.

Objective To investigate the incidence of insect-borne diseases before and after the May 12 Earthquake in Longnan, Gansu province, and to analyze role of disinfection on insect-borne diseases after the earthquake. Methods From 2005 to 2009, data on Japanese encephalitis (JE), kala-azar and malaria in the area were collected to determine the incidence and analyze the epidemiological characteristics of the insect-borne diseases before and after the earthquake. Results From 2005 to 2008, a total of 164 JE cases were reported with an average incidence rate of 1.20/10⁵. No significant difference between the JE incidence in 2008 and that from 2005 to 2007 (P≥0.05). From 2005 to 2009, 501 kala-azar cases were reported with an annual incidence rate of 3.68/105. More cases were observed in men than in women (P＜0.001). No significant difference was noted between the incidence in 2009 and incidences in 2007 and 2009 (P≥0.05). From 2005 to 2008, seven cases of malaria were reported with an annual incidence rate of 0.06/105. Wudu district and Wenxian county were worst affected by insect-borne diseases. Conclusion JE and kala-azar were historically common insect-borne infectious diseases in Longnan. After the earthquake, the incidence of these diseases did not increase compared to the previous years. The reason may be closely related to insect disinfection work after the earthquake.

【Abstract】 Objective To understand the background of flies at Qingdao airport, and to provide a scientific evidence for surveillance and control of medical?vector. Methods The flies were caught by cage trap at the Qingdao airport from June 2006 to May 2008. Results A total of 46 726 flies were collected, which belonged to 7 families, 47 genera and 98 species. Among them, 30 new records were found. Conclusion It is necessary to know species composition, which provides scientific evidence for the control and the finding of new records at Qingdao airport.