Wasp & Nest Killer Spray | Maximum Strength, Fast-Acting Formula | Kills Wasps, Hornets & Nests Instantly | Long-Lasting Indoor & Outdoor Pest Control | 300ml

I had a wasps' nest inside the vent cover of my ensuite bathroom, and it was becoming a real problem. I used about half a can, and it completely covered the vent in thick foam. Within an hour, there were no more wasps in sight. The product worked exactly as advertised—fast, efficient, and easy to use. Very impressed how quickly it resolved the issue. Highly recommend for anyone dealing with a similar problem!

We had an external hole just above the front window within the wood that we could see wasps going in and out. We considered just filling in the hole but read that the wasps will just eat their way out through the wood (or plasterboard, cavity insulation or whatever they are trapped next to) and usually this means eating their way out into your home. We therefore bought the Karlsten Wasp & Nest Killer and waited until evening and sprayed a liberal amount directly into the hole. This definitely worked but we were still left with some activity. We repeated the sprays an hour later, the next morning and again that night. All in all, 4 doses totalling half a can. The smell, if used outside, is negligible. The smell, if used inside, is much more apparent and I would be inclined to leave the room aired and closed especially from pets and children. After 4 doses all movement and noise stopped and we bunged the hole with sealant. Since then we’ve had no movement and no stray wasps hanging around. Good value for money and reliable. Would definitely recommend and buy again. Edit - one week later - still no wasps

Works great

Was a bit hesitant that this would work. But waited until 23:00 with a red light headtorch on (wasps do not see red light) and sprayed half of tin into gap in fascia. Looked into gutter in the morning and it was full of dead wasps. I thought I would need another application to kill off and stragglers in the nest but now after a week no sign of any other wasps. Brilliant problem sorted👍

Initially this was fantastic.. we sprayed the nest as directed and no wasps in the house but by 6am the next morning, there were flying wasps in the houses again... sleeper, slower and easier to kill but 5 days later and there are *still* 12-15 sleepy wasps a day and one of the children was stung by one.... I wouldn't buy it again

Does what it says on the tin, very well.. killed bees very quickly. Quick delivery

Wasps have been ripe this year - always getting attacked in the garden so thought we would give this a try. It doesn't work instantly like many reviews claim but the wasps don't like it thats for sure

Good