Stubborn flying insects such as mosquitoes, houseflies and bees are cold-blooded creatures that disturb people in their environment, especially in restaurants, hotels and country gardens and also they are very difficult creatures to fight with. It is not possible to fight against these insects with normal insecticide methods. Many insecticides contain toxic properties, these products kill the insects with the toxic effect, not the biological effect, in other words, they eliminate them with the effect of poison. Therefore, PBO and similar solvents that have no insecticidal effect but increase the toxic effect are used in the production of these products.