2. Install a fly trap: place a fly trap behind the kitchen or at the kitchen waste dump, use rotten fish as bait, trap the flies and kill them with pesticides.
3. Retention spraying:
Spray insecticide evenly on the surface of the object where flies usually move. When flies inhabit or pass through here, they will die of poisoning due to contact and absorption of pesticides. Some pesticides last for a long time, up to about 4 weeks.
4. Spraying in space: Spraying in open space and spraying in space with pesticides will directly poison flies and kill them quickly. For restaurants, it can be sprayed at the front and rear positions. Drugs sprayed in space are generally highly toxic. As a dining place, the restaurant should be sprayed as far away from the kitchen and the place where guests eat as possible to ensure food safety.
5. Isolate flies: Installing screen doors and screens at the doors and windows of restaurants can effectively prevent the invasion of foreign flies. In addition, installing a blower at the inclined position of the restaurant's air outlet can form an air curtain or air duct after work, which can also effectively drive away flies.