1.Anti-dengue fever-we need to know and do it

Dengue fever is an acute mosquito-borne infectious disease caused by the dengue virus, which is mainly transmitted through the bite of Aedes mosquitoes.
•Try to avoid growing aquatic plants in the office and at home. If necessary, change the water every 2 to 3 days, wash the roots of the plants, and scrub the inner walls of the container.
• Clean up water in flowerpot trays, refrigerator trays, and umbrella buckets at home in time, once a week. It is best not to use containers to store water at home. If you must use it, cover the container.
• Screen doors should be installed in the home, and mosquito nets, mosquito coils, household insecticides and electric mosquito swatters should be used to prevent mosquitoes from being bitten by mosquitoes.
• After heavy rains, pay special attention to promptly clearing the water inside and outside the home, all kinds of basins, pots, jars, altars, bottles, bamboo joints, tree holes, and balconies, roofs, etc., before and after the courtyard.
• Avoid staying in the shade of trees, grasses, pavilions and other outdoor shades during the evening hours when the "Mosquito mosquitoes" are frequent.
• Residents should actively cooperate with relevant departments to investigate the density of mosquito vectors at homes, such as fever, headache, joint pain, muscle pain and other symptoms, try to avoid going out, prevent mosquito bites, and go to the nearest hospital in time.

2.How to clean up breeding ground

1. Main types and types of breeding grounds

The main breeding places for families, units, and schools are: vases, flower pots and trays, drinking tanks, water storage tanks or tanks and other useful functional water containers, idle bottles, cans, tanks and other useless water containers, bamboo tubes, trees Holes, car tires, building back beams and rain gutters, basement water wells, etc.

The main breeding grounds such as the external environment, parks, and construction sites include: garbage film on roofs, building roofs, green belts, discarded cans, lunch boxes, plastic cups, water containers, etc., idle or discarded bottles, cans, cylinders and other useless products. Water containers, discarded car tires, pipe wells, bamboo tubes, and tree holes in the municipal pipe network.

2. Treatment method of breeding ground

Turn over the pot to remove the useless stagnant water. Clear out the discarded containers, and temporarily unused containers should be turned upside down one by one.

Clean up dead spots and garbage. Remove the green belt and sanitary dead corner plastic film, disposable plastic container. Pay attention to the treatment of hidden corners in the bathroom, kitchen and balcony.

Take care of drinking water or functional water containers. Drinking water containers or functional water containers are required to be covered tightly, and the water should be changed every 5 to 7 days. If the water cannot be changed regularly, mosquito fish can be stocked.

For vases that grow aquatic plants, change the water once every 2 to 3 days, rinse the roots of the plants, and thoroughly wash the inner wall of the container; large lotus tanks and ponds can stock mosquito fish, etc., and can also put organic phosphorus slow-release agents such as dithion. During the peak of the epidemic, residents were mobilized to avoid planting aquatic plants as much as possible.

For pipeline wells of closed municipal pipeline networks, use chlorinated pesticides such as dithion and fenthion or waste engine oil when necessary.

Govern tires. Tires are required to be stacked neatly and stored indoors or in rain-proof places. If they are to be stacked outdoors, they must be covered tightly with rain-proof cloth to avoid accumulation of rainwater. If necessary, insecticides can be sprayed to kill adult mosquitoes, and juvenile insecticides such as malathion and dithion can be used in the tires.

Treatment of Zhutongshudong. The bamboo tubes and tree holes in parks, schools, and gardens should be blocked with gray sand, or the bamboo tubes with roots should be cleaved with the "cross" to make them cracks and no water accumulation.

The corners where the air conditioner drips and other pipes run and leak water should be dealt with in time and checked regularly.

For the stagnant water that cannot be cleaned up for a while. It can be used to put in malathion, dithion and other juvenile pesticides, or pour an appropriate amount of waste engine oil to cover the surface of the water body.

3. How to kill adult mosquitoes correctly

Spraying insecticides is one of the means to kill adult mosquitoes quickly and effectively.

Residential areas and densely populated places (such as parks, etc.) preferably contain high-efficiency and low-toxic pyrethroids, such as permethrin, ethenothrin, and phenothrin. In the general external environment, DDVP, pyrimidinhos-methyl, etc. can be used; dilute a certain multiple according to the product specification, usually spraying at 7-10 o'clock in the morning and 4-7 o'clock in the afternoon, once a week.

Source: Zhuhai Public Health