Karlsten Ant Killer Spray 5L – Extra-Strong Cypermethrin Formula for Indoor & Outdoor Use – Fast-Acting, Long-Lasting Pest Control – Kills Red & Black Ants, Stops Infestations

This stuff is the real deal. I had a serious ant 🐜 problem. I'd been using product from garden centres but the little expletives thrived on them. Not now, I've turned into a mass murderer. I know this stuffs expensive but compared to the cost of replacing a brick path or drive its nothing. And, I've still got half a container left for new infestations.

Excellent. Had several colonies of red ants in my lawn. Sprinkled this in the nests with a watering can. Worked within several hours. I was also able to let the cat out once it had dried fully. Definitely recommend and but again.

Seems fairly effective and after soaking the lower bricks of our walls twice, we've not had any more ants indoors. We live on sandy soil area which may even be an ant heap in disguise.

A must buy if you have an ant problem, one application was all that was needed, no more ants for me!

The ant's didn't like it

Used this on visible ant infestations and certainly did not kill instantly. Watched ants swimming in it then crawling away. Looks like may harm grass, but as it so dry it is difficult to blame this conclusively. Definitely looks browner in area where spray concentrated though. Probably say it has reduced the infestations, but has not eliminated them by any means as still plenty of the little blighters running around. We seem to be plagued with a huge number of nests, so maybe we are beginning to tackle the problem. Have used all 5 litres but not sure I will re-order, maybe try something else.

This is the second time we have bought this ant spray and it seems to keep the ants under control. We spray around the outside of the house with a 5 litre garden pressure sprayer and it keeps the ants at bay. Last year we arrived home from holiday to find an infestation inside the house in the bay window. We had bought a five litre tub of it before we went but not used it. We sprayed the infestation and got rid of them, havingsprayed the carpet inside, pulled up the carpet in the bay window and sprayed the underlay and screeded floor. Ever since, we have sprayed around the house, particularly the bay window and had no re-infection and it seems to keep them under control. This is the third 5 litre tub we have bought of this and have been very pleased with the results

It's good