

🚫🐜 Stop roaches in their tracks—because your home deserves a bug-free legacy!
Harris Boric Acid Roach and Silverfish Killer Powder is a professional-grade, EPA-registered pest control solution that combines a long-lasting boric acid formula with a food-grade lure to attract and eliminate roaches, silverfish, and other insects. Its easy-to-use powder duster with an extended straw ensures precise application in hard-to-reach areas, delivering fast-acting results within 72 hours and maintaining protection for weeks when kept dry. Trusted since 1924, Harris offers a safe, effective, and reliable barrier for homes with people and pets.








| Active Ingredients | boric,boric acid |
| Best Sellers Rank | #4,130 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #69 in Pest Control Baits & Lures |
| Brand | HARRIS |
| Customer Reviews | 4.2 out of 5 stars 4,667 Reviews |
| Item Form | Powder |
| Item Weight | 0.01 Ounces |
| Specification Met | EPA |
| Target Species | Insects |
E**D
Bug stopper
Works very well stops the bugs from outside from coming in
D**R
It's worth your time and money
This product actually helps control roaches
D**O
This stuff is magic!
Not saying I got rid of all the palmetto bugs in my house, but I got rid of about 95%! There’s still the stragglers who are probably hibernating, see then why nice in a while. But mostly all babies are gone because im pretty sure I got rid of the female adults. This will only work if you do it correctly! For any bad reviews, means they didn’t do it right, or they didn’t read!! This does not work great on German, but still helps I love heard. Because boric acid is the only thing that the German species can’t get immune to. Thankfully I didn’t have those. I live in Fla, land of the palmetto! Anyway, TIP: Less is more! Do not over puff everywhere. If they see a pile of powder, they will walk around it. They don’t like this stuff, they don’t hate this stuff. If they see it, they will not eat it. That’s not how it works. You want to dust a fine layer in areas you have seen them. Then, they walk over it, and once it gets on their legs, they lick it off to clean their legs, and that’s how they ingest it. Then, hopefully, when they die, it’s at the nest, because the other roaches will eat the poisoned one, they are cannibals, and they will die also. HUGE TIP: The only place these things can hide where you can get to them is in your walls. So, although unorthodox, I drilled small enough holes every 20 inches for duster to fit in. I did this through my hole house. I dusted in every hole lightly but just enough. Then I got some quick dry putty, and painted over, even though it dried white. I still painted anyway. So that method doubled my success rate! It’s up to you, but when they fall on one of your kids bed! Your going to do things that you normally would not to get rid of them. Good luck. Oh, btw, that powder will stay in your walls forever as long as it doesn’t get wet. So, lifetime protection in wall!! Lol
N**H
Great roach defense and fast results!
This is great for outdoor roach defense! We used it all along the backyard and it has a powder pump straw that helps you really pump the boric acid into the cracks and openings that roaches and other bugs come out from. We had a bad roach problem outside of our home and this helped kill them almost immediately. Great product, highly recommended!
G**T
I like it
Great product
L**L
Works but has a distinct odor
Product is simple but messy to apply with the applicator, there is a bit of a learning curve to get it to perform well. It is a type of plastic bellows that needs to be depressed so the product shoots from a long plastic tube. I had to experiment with pressure to find the correct amount so that I didn't have a mound or none at all. I finally gave up on it and applied the product with a chip brush, dipping it in product and dusting areas of concern, I found this method worked better than the applicator although the product would not penetrate deep into crevices it was irrelevant as it was effective. The product itself has a distinct, chemical odor that I found offensive but it is not overwhelming on application, although it is when stored. It works as advertised, I have not seen any type of crawling insect since application.
L**A
Works were well
Worked well
R**A
It Does What It’s Supposed To Do!!
Awesome and does what it has to do to get the pest gone…easy application
Trustpilot
2 weeks ago
2 months ago