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

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.

Wow, so impressed with this product. Had a large nest inside a hedge near the front door. The wasps had created a hole in the hedge of around six inches by four inches and the nest inside was very big - at least a foot wide and two feet in length. First sprayed on a Friday night when the nest was dormant. Checked the next morning and there was little activity in the nest and evidence of dead wasps but sprayed again on the Saturday night. Checked the nest Sunday afternoon and it was completely silent with no trace of any wasps. Decided to poke the nest to make sure and it literally crumbled away and fell to the ground under the hedge. So the whole treatment took less than 48 hours - so impressed. Found the product easy to use and still have another few sprays left inside the can. Cannot recommend this product enough, it was a game changer.

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?

Was fast and effective

I was slightly optimistic after reading the reviews, it seemed for the vast majority it simply solved the problem, a few negatives I put down to maybe a faulty batch, but recently it seems all OK. So I ordered, a bit pricey I thought but if it gets rid of the wasps? Worth it. It arrived & I waited till dusk, nice quiet night, no wind so I thought this is perfect. The wasp nest is next to a tree stump on the floor, so the 5m might come in handy, I started spraying...wasn't hitting from 5m, I walked closer to roughly 3m & I was sure it was hitting the nest then as few wasps woke up to investigate...to my surprise, they weren't that fussed by the spray, roughly 6 of them flew out and went off somewhere, I carried on spraying the top & entrance (roughly 8 seconds) until the can had no pressure left, a few wasps buzzing but I thought they'll be killed off if they go into the nest, job done! Cut to this morning...I might as well have sprayed the nest with air, no dead wasps, nest still as busy as ever & the entrance like a conveyer belt for wasps. Very, very disappointed, especially when you consider the price. Would it work for a completely exposed nest? Possibly...nothing on the can or description stated otherwise.

"long 5m range" but it's a spray not a foam, so it instantly disperses and blows away. Probably good in a big room, but pretty useless when you're trying to cover a small entry hole high up outside. To get proper range make sure you get a FOAM not a 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!

Kills when you can get close enogh but getting close can prove risky.