WS/T 687-2020Operating procedures for vector control (English PDF)

5.1 Hazard investigation and assessment

5.1.1 Investigation method

5.1.1.1 The indoor cockroach density survey method is based on the visual inspection method and stick trap method of GB/T 23795.

5.1.1.2 The outdoor fly density survey method is based on GB/T 23796.The adult fly adopts the cage trap method, and the fly larva adopts the larval visual method.

5.1.1.3 The indoor and outdoor mosquito density survey method is in accordance with GB/T 23797.For mosquito larvae (pupa), small stagnant water adopts path method or larva sucking in the pipe method, large water bodies adopt the scoop method; adult mosquitoes adopt the trapping method or the carbon dioxide trap method.

5.1.1.4 The indoor and outdoor rat density survey method shall be carried out according to the rat trace method of GB/T 237989.

5.1.2 Survey content and indicators

5.1.2.1 Cockroach

The survey content and indicators are as follows.

--Inquire about the infringement of cockroaches in residential areas, including the types of cockroaches, the time of infringement, the scope of infringement, the degree of harm, and previous medications Situation etc.;

--Inspect indoor kitchens, bathrooms and other areas in residential areas, and observe the holes, holes, and seams in kitchen cabinets, stoves, sinks, etc. by visual inspection the number of cockroach and cockroach traces; or according to GB/T 23795, use the stick trap method to investigate the cockroach density.

Record the investigation content of cockroach species, infringement range, density, etc., and fill in the investigation results into the questionnaire (see Table A.1 in Appendix A) and Table A.2), refer to GB/T 23795 to calculate the infestation rate, density or density index, and the positive rate of cockroach traces (seizure rate).

Note. positive rate of cockroach traces = number of positive households/number of inspected households

5.1.2.2 Flies

In the residential area, use cage trap method to investigate the damage of adult flies and record the total number of flies caught; use larva visual inspection method to check the breeding of flies larvae Habitat; fill in the survey results into the survey form (see Table A.3 in Appendix A), and calculate adult fly density and fly larvae breeding according to GB/T 23796 Ground positive rate; at the same time, record whether there are scattered garbage, whether there are closed storage containers that match the amount of garbage generated, and the situation of Nissan and Nissan, Calculate the pass rate of closed garbage containers.

5.1.2.3 Mosquitoes

The survey content and indicators are as follows.

-Large and medium-sized water bodies in residential areas, using the larval spoon catch method to investigate the density of mosquito larvae (pupa). Record the number of positive spoons and collected mosquito larvae (Pupa) number, of positive water bodies breeding mosquito larvae;

-Use the path method or the larval straw method to investigate the density of mosquito larvae (pupa) in the outdoor small water in residential areas. Record and monitor walking distance, the number of small stagnant water or stagnant water containers that breed mosquito larvae, and the number of inspection containers;

-The adult mosquito density survey adopts the trapping method or the carbon dioxide trap method. Record the time of mosquito trapping, the number of female mosquitoes trapped, and the amount of mosquito trapping Number of people or lights.

Fill in the survey results into the survey form (see Table A.4 and Table A.5 in Appendix A), and refer to GB/T 23797 to calculate the scoop index, Path index or container index to calculate the landing index or adult mosquito density.

5.1.2.4 Rodents

Check the number of rat tracks or positive rooms in residential areas, basements, elevator shafts, underground tube wells and garbage storage points, and record the inspection distance Leave and check the number of rooms and fill in the questionnaire (see Table A.6 in Appendix A). Refer to GB/T 23798 to calculate the positive rate of rat tracks or path index.

5.1.3 Hazard assessment

According to the on-site survey results, refer to the vector density control in GB/T 27770, GB/T 27771, GB/T 27772 and GB/T 27773 Level indicators to assess the degree of vector biological hazards.

5.2 Develop a technical plan

Develop technical plans based on on-site investigation and hazard assessment results. The prevention and control plan includes environmental governance, protective facilities, drug selection, investment Placement location, drugs, device types, control frequency, precautions, etc. At the same time, the plan should clarify the scope, area and prevention methods of disposal, as well as the prevention plan, time limit, inspection and evaluation methods, and expected results.

5.3 Operating procedures

5.3.1 Environmental modification

5.3.1.1 Fill up potholes, abandoned ponds, etc.

5.3.1.2 Seal the holes and gaps on the foundation and wall surface of the building, as well as the holes and gaps between the room and the outside (including water Air conditioning, electrical wiring, gas and other pipelines).

5.3.2 Environmental treatment

5.3.2.1 Regularly clean up the debris in the environment inside and outside the home, remove sanitary dead ends, cockroach traces, rat traces, etc.

5.3.2.2 Clean up the kitchen waste in time, cover the trash bin and clean it every day.

5.3.2.3 Remove the accumulated water in all kinds of basins, pots, jars, altars, bottles, etc. inside and outside the home and before and after the courtyard, and treat the temporarily idle containers one by one.

Turn it upside down or cover it.

5.3.2.4 For containers for growing aquatic plants, change the water once a week, wash the roots of the plants and scrub the inner walls of the container, or use coarse sand or crushed sand.

Fill the container with stones, etc., and add water regularly.

5.3.2.5 Regularly dredge and clean all kinds of sewers,, sewage ditches, etc.

5.3.2.6 Clean up the animal feces scattered in the external environment in time.

5.3.3 Establish facilities for preventing rodents and mosquitoes

5.3.3.1 Fly prevention facilities such as screens, windows, doors and curtains shall be installed in public restrooms.

5.3.3.2 The substation and power supply room shall be installed with anti-rat facilities in accordance with the requirements of GB/T 27770.

5.3.3.3 Install floor drains in indoor sewers; block rodents and cockroaches invading channels, such as cracks in walls, doors and windows, and gaps in pipeline channels.

5.3.3.4 Residents can install anti-flies and anti-mosquito facilities, such as screen doors, screen windows, etc., and hang mosquito nets when necessary.

5.3.4 Cockroach control

5.3.4.1 On the basis of environmental clean-up and environmental transformation, indoor cockroach-sticking paper, cockroach-killing glue bait or particle poison bait should be used first.

5.3.4.2 When using sticky paper indoors, place it in places where cockroaches frequently move, such as refrigerators, cabinets, under sinks, and debris piles.

5.3.4.3 When applying the anti-cockroach gel bait, follow the principle of "more spots, less amount, and wide coverage", and use it in accordance with the recommended dosage of the drug.

5.3.5 Fly control

5.3.5.1 During the flies activity season outside residential areas, an appropriate amount of fly traps can be set up around the green space and trash bins, and the bait can be replaced regularly;

Use fly-killing bait, such as particle bait or liquid bait, and place it in a container with warning signs, and place it in the green belt, around the garbage bin, etc.

5.3.5.2 When the density of flies in the environment outside the residential area is high, and when it affects the control of indoor flies, it can be installed on the wall, the exterior wall of the unit building, the wall of the underground garage, and the surroundings of the trash can, etc., shall be sprayed with drugs.

5.3.5.3 Places with high density of flies, such as garbage storage points (locations), garbage transfer stations, etc., can be in accordance with GB/T 31714 and GB/T 31715 Carry out application treatment.

5.3.6 Mosquito control

5.3.6.1 For landscape water bodies, such as ponds, landscape ponds, and drains, biological control and mosquito control are preferred, and fish that feed on mosquito larvae or Using biological agents, it can also be treated with mosquito larvae.

5.3.6.2 For small stagnant water that cannot be removed and various underground pipeline wells, drainage ditches, basement water collection wells, etc., mosquito larvae can be used for deal with.

5.3.6.3 When the density of adult mosquitoes is high, the green belts, bamboo forests, bushes, garages, residential corridors, basements and other places can be used as needed.

If necessary, perform space spray and residual spray treatment in accordance with GB/T 31714 and GB/T 31715.

5.3.7 Rodent control

5.3.7.1 Indoor rodent control is mainly based on sticky rodent boards or mechanical mousetraps, which are mainly placed on both sides of the kitchen and rodent access channels, along the wall place.

5.3.7.2 Outdoor rodent control is mainly based on poison bait, and wax block poison bait should be placed at the entrance and exit of garbage sewers and underground pipe wells.

5.3.7.3 Set up poison bait stations in the environment outside residential areas, garbage transfer stations, garbage storage points (places), etc., record and mark the placement and Quantity, check regularly.

5.4 Matters needing attention

5.4.1 Rodent baits should use anticoagulant rodenticides with good palatability, and according to the distribution of rodents and their activity rules, follow the product instructions the book is launched.

5.4.2 The poison bait station is placed in a hidden place or a place where rodents often move, and the poison bait is placed in the poison bait station in an appropriate quantity.

5.4.3 Before carrying out the control of vector organisms, an operation notice should be posted in advance, and obvious warning signs should be set up after the drug is administered to prevent children and pets from eating by mistake.

5.4.4 Rat traps should be used cautiously for rodent control in residential areas to avoid injury to humans and animals. After control, the carcasses of rodents, cockroaches, flies and breeding should be cleaned up in time Things.

5.5 Evaluation

5.5.1 After the implementation of various control measures, according to the action time of insecticides and rodenticides or as needed, conduct regular density surveys.

5.5.2 According to the results of the density survey before and after the vector control, the density reduction rate is calculated according to formula (1).

Appendix A

(Informative appendix) Vector density questionnaire

Table A.1 gives the cockroach density survey form in residential areas (visual method). Table A.2 gives the cockroach density survey table in residential areas (sticky catch method).

Table A.3 shows the flies density survey in residential areas. Table A.4 gives a survey of mosquito larvae density in residential areas. Table A.5 shows the adult mosquitoes in residential areas

Density questionnaire. Table A.6 gives a survey of rodent density in residential areas.