I dissolved one sachet of k-othrine in a small supermarket Aroxol sprayer, and the combination of these two wiped out every trace of cockroach in a two-story building with rental rooms. I sprayed the kitchen floor, the living room, the toilets and the hallway, and the next morning I saw dozens of dead ones turned upside down. Even baby cockroaches that you need a magnifying glass to see. I sprayed at the beginning of July and, by the beginning of September, I haven’t seen even half one again, just as a sample. The floor looks dull, but what matters is the result. The package with the two sachets is relatively economical, so you can mop and spray again the following month. It is the only guaranteed solution, with immediate results within 24 hours. We are always talking about the genuine Bayer one; I haven’t tried the others. It should be noted that after spraying, I didn’t need mosquito repellents or tablets all summer. Along with the cockroaches, mosquitoes, gnats, and midges disappeared. Any insect that comes into contact with the sprayed floor is gone.

P.S. Absolutely safe for pets. We have three house cats, who are in excellent health.