




🕸️ Take back your space—spiders and scorpions don’t stand a chance!
Black Flag Spider and Scorpion Killer is a 16-oz aerosol spray featuring a potent blend of prallethrin and lambda-cyhalothrin that kills spiders and scorpions on contact and provides up to 16 weeks of residual protection. Safe for use indoors and outdoors, it effectively targets dangerous species like black widows and brown recluses without staining surfaces, making it a top-rated, trusted solution for long-term pest control.



| Best Sellers Rank | #49,197 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #408 in Insect & Pest Repellent Sprays |
| Brand | Black Flag |
| Customer Reviews | 4.7 out of 5 stars 2,098 Reviews |
| Item Form | Spray |
| Item Weight | 1.26 Pounds |
| Liquid Volume | 17 Fluid Ounces |
| Specification Met | EPA |
| Target Species | Spider |
M**X
Actually works on Scorpions!
FINALLY, something that works on Scorpions! Use it both inside and out, scorpions and spiders both stop 'dead' in their tracks, die immediately or shortly after. Thank you! Combined with home essential oils spray I make, minimal scorpion presence in the home. I spray this at door jams and other potential entry points every so often and it appears to help.
R**1
It did kill the spiders
I was having a spider problem, and i'm not anymore. I do have pets but anytime I use any type of bug spray, I put them in an area that i'm not spraying, and then spray clean up and then let them out. I had absolutely no problems with like a residual mess. It did what it was supposed to and my spider problem in those areas was no longer a problem. And I can say it did not affect the cats or the kids at all.
G**A
Works Great and keeps spiders away for months
This is the only Spider spray that I buy. It works consistently and lasts for months after applied. I spray along the exterior of the house and patios. Then spray on a cobweb brush and use a pole to get up into the eaves. Works Great as always. I have tried other brands and I just don't feel that they do as great of a job.
J**M
It's great
Works wonderful
T**D
Thrillered
Best on the market, but lately hard to find, hence 12 cans. Item was delivered earlier than expected and happy for the surprise, because the spiders are having parties.
S**F
Spider
Just in time to get rid of my spiders. It was an excellent value for the money. The spray can top does not leak, so I feel safer that I will not get sprayed, which makes it safer. Well, I sprayed, and after half an hour, it was effective.
G**7
It's a YES!!!
Bought this for those carnivorous cave crickets. It's the only spray that I've found works on them suckers. They start showing up every fall, trying to get in. I spray around the outside doors, steps and basement windows, and in the basement where plumbing enters the house. The effectiveness lasts several weeks.
J**D
WORKS!
This works great on both scorpions & black widows. But it's become hard to find. Lowes doesn't carry it anymore. So glad AMAZON had it! ... When you have to get rid of a black widow (& her fam) you need something that does the job on the first try 😳
Trustpilot
1 month ago
1 month ago