You dissolve it in water according to the instructions, spray where needed, and you don't have to worry about pests for 2-3 days. Great effectiveness against cockroaches, flies, mosquitoes, spiders, and other small insects. Pet-friendly. The most effective product I have ever used. I even use it in my country house and it has given me peace of mind!

We had an issue with cockroaches during the summer months. I sprayed twice during the summer and until today we find them upside down and dead. I have not tried other similar products but just the fact that I did not have to kill a cockroach all summer, I recommend it.

We have been using this specific medication for over 15 years and it is truly the most effective for cockroaches. We spray the outside of the house, the shutters, and the yard and we are cockroach-free for at least a year. There have been years when we didn't spray and still found dead cockroaches. This year we had a terrible issue with spiders and I noticed that their population also significantly decreased, although it didn't completely eradicate them. It doesn't kill mosquitoes and especially ants for any reason, but I give it a 5/5 because it eliminates cockroaches - which are my biggest problem. Please note that after spraying, it is advisable not to wash the surfaces for a few days.

Good product. I bought it for ants. I spray it every spring or whenever they appear. Outside the house, but also inside the house. Effective for ants and spiders. I like that it comes in sachets. It's good, I will buy it again!

After spraying in the garden, balcony, stairs, and light fixtures, it stayed without raining for about 3 days. Then it rained and in some areas it washed off. The result with cockroaches is that so far I have found 3 on the balcony lying on their backs in a semi-conscious state, slightly moving their legs. So it does something with the cockroaches, although I would prefer them not to have reached the balcony at all. I haven't seen any difference with mosquitoes

Very good product. Perhaps the best I have tried after testing three different ones. If you live in a detached ground floor house, make sure to spray mainly the drains and you will get rid of the problem.

-I am returning to mention something I noticed along the way. It would be good to make sure to spray once a month. In my case, after 2 months, the "cases" started again. (15/08/23)

First of all, very affordable product, it is not harmful to pets and as for its effectiveness, while we thought we had cleaned with the previous one, when we sprayed with this one, we found two dead bodies upside down

Literally no comparison to supermarket products, if you spray it in an area where insects pass, you find them turned upside down a little further the next day.

I did not follow the dosage instructions, I poured it all into a large spray bottle with a cap and it does its job.

100% odorless

I have been using it for 3 years in a house inside a field.
Usage 1 to 1. So, 2.5 grams in 2.5 liters of water....5 grams in 5 liters of water. For a major problem, try using 1-1.5 liters. For example, 5 grams in 4 liters. No problem with animals. Just let it dry. So, remove animals and children.. Spray and wait for it to dry. It leaves a white residue and once it dries, you can see where you applied it. In a room that I sprayed last summer but is not used frequently, it still kills. Spray doors and windows inside and outside.. Corners and drains or other openings. I hope I helped.

I had a serious problem with cockroaches in my house. I followed the instructions diligently for as long as needed (one month, spraying once a week, correct ratio of product to water), and my problem was solved. I am writing this review one year later. It saved me and I didn't have to spend a lot of money on repairs.

I have been using it for 3 years... Back then, it worked on cockroaches and bugs... Now, it does very little... Be careful... it's not suitable for fish... I used it because it claims to be effective against crawling insects, but more of them appeared... However, compared to insecticides from the supermarket, it is better.

I have been using it for at least 2 years combined with a liquid product and I am satisfied. The cockroaches, once they come into contact with the product, die shortly after

You use it and you don't worry about cockroaches! The only negative thing is that on the first day you may come across dizzy cockroaches coming out of their hiding places! I suppose they still haven't invented something that simply makes them disappear

It really eliminates cockroaches, ants, spiders, and generally any insect that walks in the garden, however mosquitoes didn't notice anything (although the product's instructions do not mention anywhere that it is for mosquitoes, even though I read in many reviews that it affects mosquitoes too). Overall, I am satisfied with its performance.

From the very first time, one was found dead and the rest disappeared. After a year of using it every 2-3 months, I haven't seen a single one.

Effective and odorless! I used it in my country house, both indoors and outdoors. The next day after application, I saw dead insects everywhere. It is much more economical than ready-made sprays available in the market. Anyway, they all contain pyrethrins. One sachet dissolves in 5 liters of water, or you can use commercial spray bottles (e.g. azax) which are about 1 liter and add 1/5 of the sachet. Definitely use protection with a mask, goggles, and long clothing.

It seems to do the job. I sprayed it on the wall under the lamps where insects were gathering, and their number has dramatically decreased for the past 4 days

AMAZING. Within less than a week, I found dead cockroaches on the balcony where I had sprayed. Obviously, without the pesticide, they would have been freely roaming on the balcony and might have even entered the house, as it has happened several times before.
I would highly recommend it to anyone who sprays it for excellent protection, mask, protective glasses, pants, and a long-sleeved shirt, as the pesticide is very dangerous.

Read the instructions carefully and pay attention to the dosage depending on the job you want to achieve (mosquitoes, crawling insects, and many others).

Edit (20/7/23)
2 years later, the same amazing results. Every summer, after spraying the pesticide in the areas where cockroaches appeared, like the balcony, I constantly find dead cockroaches. Which means that the pesticide does exactly what it promises. Every 4 weeks, with the repetition of the spraying, you will have peace of mind from cockroaches and other insects.

Those who do not have results, it is because they do not use the appropriate quantity...
Read the instructions and pour as much as needed, not less for economy.
I pour both sachets in 5 liters and the cockroaches come upside down!!

Hello, I have a garden with lawn and trees, 1 acre in size. I sprayed it with 16 liters and above the normal limit, I used 8 packets of 2.5 grams each and a Tampa 97.6 oil. I see dead bodies, I consider it the best out of all the products I have tried, but still flies and mosquitoes keep appearing constantly. I don't know what's happening, I have tried everything. I am starting to consider ordering medicine from China, which is not allowed here with Malathion.

Extremely effective! We sprayed it in a workspace with many flies-mosquitoes-spiders, and nothing has remained. Hopefully, it has a long-lasting effect.

I had a huge problem with mosquitoes. I was in a hurry and bought it from a local store, not online. The store owner recommended it to me because I wasn't satisfied with 3 other companies. It made everything disappear in no time... it does an amazing job. As a friend said, it leaves a white powder on the windows. Amazing product

Good choice. I sprayed in crevices, corners, and edges of walls and for the first time this year we didn't see any ants.

The best insecticide on the market.
The yard of my house (Piraeus) borders a plot of land where I had and still have cockroaches and bugs. It's the third year that I'm using it and I am extremely satisfied. During the first 4-5 days of use, I find dead bodies everywhere. After that, there is nothing. I can barely find 1-2 per week.
Also, in a friend's apartment building with a serious cockroach problem, we sprayed the entrance where they were coming from. In less than 10 days, the entrance was filled with dead bodies. The product is reliable and truly delivers what it promises.

Reading the reviews here on SKROUTZ, I proceeded to purchase and apply the product.
I sprayed it on the walls at night. The next day, the flies were flying undisturbed!
I reserve judgment and will come back with a new review in case something changes because I will try a second application JUST IN CASE I did something wrong in the first one.
This, however, is my opinion about the product so far.

I think it's the best thing out there... after using it for 20 minutes in drains with huge cockroaches and various other bugs, there was nothing left! I sprayed around the barbecue in the garden and on the high vine and mosquitoes haven't been flying around for 3 days, whereas before you couldn't sit outside because of all the flying insects that were around! No insect has been flying or walking in the garden for a week... simply amazing!

Definitely worth its money and it is effective and easy to use! I really relaxed with Bayer's K othrine!

K-Othrine (the Original by German Bayer) and Delta-methrin (the generic by Greek Farma-Chem) and Killmethrin (the generic by Indian Sharda) contain the active insecticide substance Deltamethrin in a concentration of 2.5% by weight (sold as a powder that dissolves in water). In my opinion, there is no better insecticide (flies, mosquitoes, cockroaches, etc.) that is as safe for humans. The only drawback is that it leaves a white powder on surfaces after spraying. PERFECT FOR EXTERNAL USE. Alternatively, use Solfac (by Bayer) which you can even spray on the mattress you sleep on!