Karlsten Hyper Power Wasp Nest Killer & Hornet Killer 600 ML - Gold Standard High Strength Long Range 5 Metre Spray for Indoor and Outdoor Wasp Nest Removal - Wasp Killer Spray

Super effective! I had a hornet’s nest in my shed. I’m terrified of the things especially after catching sight of the queen who was MASSIVE. I brought this because of the claimed 5m range. To be fair, when I sprayed the nest I was probably about 3m away from the nest to get the angle right through the shed door. This spray can released a large, targeted cloud of insecticide which dealt with the hornets swiftly and accurately whilst allowing me to keep my distance. Was very pleased with how this performed!

There was a nest in my outhouse, if I disturbed the door there were 100s of wasps which would come through a gap. I had no real idea where the nest was inside. Using this spray, over the course of 2 days I blasted the entrance. Most wasps died or became lethargic and easy targets. Once the numbers had reduced, I opened up and found the nest, it was large. Over 2 more days I blasted the nest 2-3 second squirts x2. This killed 99% of the wasps and the remaining few soon disappeared.I have plenty left in the can, I worked very well and I would buy again if required.

Waited till dusk to spray the nest in our porch eaves. The contents came out as a large cloud nowhere near the distance stated. I ended up nearer a metre away. The wasps didn't like it at all and started emerging. We retreated. Two days later I finished the can but there was no reaction this time and I haven't seen any activity since. So I think that first dose did work. I don't think I managed to spray into the hole because I couldn't really see much with that large cloud of stuff but perhaps the ones that came out took the poison back in?

Would give no star if I could. Utter waste of money. This is neither foam or dust. More like a fly spray killer than nest killer. Spray absorbs into air or blows away. Didn't work. If I hadn't sprayed most of it would ask for money back under trade descriptions act. Not sure what the manufacturer was playing at. Don't be fooled by higher price, it didn't work for me. If the nest is under the eves, this spray won't work.

This product was very effective in dealing with two large and intimidating wasps nests. I did use rather more than the instructions suggested, but did not want to take any chances. I also combined it with a foaming wasp spray to close up the nest hole, but this product was so strong I am confident it would have managed alone. If I need to deal with nests in the future I would certainly buy it again. I did not need to go back to the nest and respray it.

I had a wasp nest behind the air brick under my conservatory floor. I pretty much emptied the entire can in there (I'm terrified of wasps!!), and it did the trick. I covered the air brick with some fine-weave stainless steel mesh, and the wasps still hovered around the outside for a while, but eventually gave up. No wasps have returned.

This product discharges like an aerosol spray which means the effective range is less than the 5 m claimed. I treated two nests which required multiple applications over 48 hrs. I don’t think I would buy this product again as it’s expensive and only effective if you can get close to the nests.After 72 hrs one of the nests is still active 🤷🏻

Works well with a powerful and effective spray