A mosquito is the most fatal insect to human being. Every year, more than two million people die from infectious diseases in relation to mosquitoes. The IPCC(Intergovernmental Panel on Climate Change) expects that 65 percentages of all people in the world would be exposed to malaria and dengue fever in 2020. In response to this situation, the medical science and health policy have been developed. Nevertheless, various kinds of diseases in relation to hygienic insects will be developed more in every year. The main causes for this situation include climate change (global warming), environmental change due to thoughtless development, increase of people migration between countries, and resistance to insecticides.
In Republic of Korea, we have controlled hygienic insects by using fumigation which disinfects using smokes generated through diluting diesel fuel and insecticide and heating them since 1960. Under this method, the disinfection has been mainly conducted on the spots where the vehicle with the equipment can easily access. For this reason, the effect of insect control is low and even aggravates the environmental contamination.
However, along with the change of urban environment, mosquitoes have gotten used to new environment and their habitat has become various: buildings and underground septic tanks. Therefore, it is tendency that the control method against mosquitoes has changed from the management system mainly operated during summer into the management system which is also operated to find the habitat of mosquitoes.
As climate changes, malaria danger zone extends to Ilsan and Incheon. In Guro District which is adjacent to those cities, therefore, we has to take measures to block malaria.
○ Under the previous control method in Guro District, the imago mosquito control was started in May when mosquitoes naturally occur and we conducted the control continuously and repeatedly, circulating all areas until October. For the only areas where people file a civil complaint after they suffered from damages caused by mosquitoes, we conducted the control. After the complaint was filed, however, the number of mosquito was already so high that we missed the timing to control mosquito. Therefore, the effective of the previous control method was low and it costs high.
In addition, we counted the number of mosquito manually every other week using the collecting device which collected mosquitoes by light, which was applied to the control. However, there were a lot of problems in using this method. Under this system, it was unable to respond immediately to rapid increase of mosquito breeding because a worker should collect these devices and then manually classify mosquitoes with the naked eye to conduct the control.
Furthermore, only workers on the spot were able to know the place where mosquitoes occurred under this system because there was no record about the places. Therefore, if there were changes of workers, it was impossible to manage scientifically since the data was not established systematically.
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