Karlsten Spider Killer Repellent Spray High Strength Spider Killer- Lasts 6 Weeks On Surfaces Kills All Types of Spiders Ideal for Indoor and Outdoor Use - 500ml HSE Registered 10668

This spray does the job. I’m on my second bottle and like that I can use it indoors and outdoors. If I spray around windows, spiders run off quickly and stay away for months. Bigger spiders don’t die as fast, but it still works overall. Will repurchase again in the future.

After extensive research on bed bug treatments, I can confidently say that the effectiveness of any product depends on your preparation. Simply spraying a little on your mattress won’t cut it—you need to remove all clothes from cupboards, spray inside them, treat cracks in the floor, the entire mattress, and all parts of the bed frame. However, the bugs can be hiding anywhere and are attracted to the carbon dioxide, so just because you don't see them, doesn't mean they are gone. The pests can hibernate for 6 months without food so it is a pain.This Bed Bug Spray does kill on contact and provides some lasting protection, but if you have a heavy infestation, one bottle won’t be enough. In my case, I had a smaller bedroom with a single bed that was heavily infested, and even with professional-grade treatments like Provecta, C40 WP, and Cimetrol RFU, it still took several applications over multiple visits to fully resolve the issue.While this is a good starting point for minor infestations or preventative treatment, you’ll need several bottles for anything more serious. By the time you buy multiple bottles, you might be better off investing in professional treatment. That’s the main reason I’m giving this 4 stars instead of 5—it works, but it’s pricey for the amount you’ll likely need.Overall, a good product, but be prepared to invest in multiple applications for best results. I also contacted the helpdesk to confirm I could spray this on the mattress and they confirmed, their customer support was very responsive and helpful.

Does what it says on the bottle, I wasn’t sure if this would even work but brought some to try, it works perfectly living rural we get a lot of webs and have to keep clearing them this keeps the spiders away so no more webs

This thing is very effective against spiders. My garden was spider-infested and one-two spray at each (cluster of) spider killed them all under a few minutes. The spiders struggled for a couple of seconds and died. Sorry for them but they were overwhelming...The chemicals inside the bottle work well, but not so much for the spray nozzle. The nozzle worked smoothly, to begin with, but died entirely after only a few presses. The liquid just flows out from the nozzle down my arm into my cloth and I had to shower to clear the toxic skin absorbable chemical. I still feel a bit of burn sensation on the contacted area. Hopefully, the dosage is low enough. Apart from this, the nozzle only has a widespread action, which is good for treating a large area, but it is horrible to target the spider nests and individual spiders. I had to swap it for the one from a spider repellent bottle which uses a far better nozzle that also has a concentrated beam action.All in all, I give it 2 stars for ease to use because the chemical is easy to apply but the nozzle is the worst. 3 for stars for value - it is not a particularly cheap product why use such a horrible nozzle? Overall 3 stars, could have been better but not a bad purchase.

So far it's been amazing. It's killed all the ones i've sprayed, not sure about new ones coming in yet though.

I have bought 3 of these in the past and every one failed after a very short time. The spray nozzel just stops meaning that you cannot spreay it anymore.

Helped me to get rid of spiders on my balcony! Was super effective! Now it s like my protection which I use when some unpleasant spider guests r trying to settle on my balcony

I used this on my outside balcony after destroying eight spider webs with a duster. Before buying this chemical, the spider kept coming back like a bad tenant. After I sprayed, it didn’t even attempt “Web No. 9.”Instead of packing up and moving to my neighbour’s place (spiders aren’t great at taking hints), it just relocated a few meters away. It made two tiny webs—each only about a fifth the size of a normal one—before giving up entirely.The chemical is pungent. Even on a windy balcony on the 10th floor, I could still catch a whiff of it.For those giving this product one star: you’re probably spraying it like hair lacquer. That’s not how to use it. You need conviction. I used about a third of the bottle on my balcony’s target areas. Spiders are stubborn, so you have to declare full-on war to make any progress.I assume a direct hit could kill a spider, but it also works as a deterrent when you can’t find the critter. My advice: buy three bottles, go in strong, and maybe just maybe—the spider will finally pack its bags and move to your neighbour’s house.