KarlstenBed Bug Killer Spray, 500ml - Fast Acting Spray, Strong Killer, Kills on Contact,for Mattress Repellent protection Kills On Contact

Kills the bloody spiders. The smell is actually OK. And it is effective at killing the damn spiders. Easy yo use - come pack in a spillproof bag. I've not noted staining & it lasts about 3 weeks

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.

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.

Bought this a month ago and it works ok, the normal little spiders it kills instantly however these new false widow spiders put up a good fight. I came home to find one of the false widow spiders on my stairs, grabbed the spray and unfortunately it doesnt kill them, i used a third of the bottle spraying satans creature and it only made it angrier, it did slow it down to where i could hover it up.

Works well , 1 shot 1 kill, actually every spider has scurried off after a spray, the ones that have been in the open die very soon after spraying, the ones that scurry to hide ive never seen return.

Doesn’t work. Says it’s safe to use in the house and it’s odourless but I started choking as soon as I sprayed it on the wall and my nose feels tingly.

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

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.