To kill flies, you need to prepare brown sugar, beer and detergent. Take a proper amount of these three substances and put them into the container where flies often appear, and then wait patiently for the arrival of flies. These materials are easy to find at home, in which brown sugar is used to attract flies, beer plays an auxiliary role, attracts flies by emitting odor, and detergent is used to poison flies.
In addition, the taste of brown sugar and beer is very similar to human sweat, which is attractive to flies. Flies basically don't live long as they drink the mixed liquid in the container. It can also be used as a fly repellent water, which can also achieve the effect of driving away flies. Just mix salt and water in a spray bottle and spray salt water around the house.
Tips for killing flies:
Use a fly lamp. The fly-killing lamp mainly uses the phototaxis principle of flies, because flies like to fly to brighter places. So you can turn on the fly-killing lamp in a place where there are many flies indoors, and let the flies fly in the direction of the fly-killing lamp. Once they touch the fly-killing lamp, they will be electrocuted.
Insecticide is a drug that can kill flies, mosquitoes, cockroaches and other pests. You can close the doors and windows at home, then spray pesticides, then go out for a walk, and open the doors and windows at home for ventilation after half an hour. The floor was covered with the corpses of cockroaches, mosquitoes and flies. This method can be used when there are too many flies indoors.