Harris Boric Acid Roach and Silverfish Killer Powder w/Lure, Powder Duster Included in The Bag (32oz)

Great item. to remove and. kill. roaches, ants and termites. I spray all over the outside of house....and sprinkle some powder also. The termites eat it and brings it back to nest, killing the queen. Ants also bring this back, and roaches eat it and are killed. I have almost no insects now.... Great items. Just do not use near kids. great price, saves and is cheaper than pest control company which uses toxic chemicals.

I bought this back in August 2025, so this review is about a year overdue. I was scrolling Amazon today, saw this product again, and immediately thought, "Wait...I NEED to leave a review for this!" For some context, my husband and I rent a home that we absolutely love. Our landlord has been great, but unfortunately the previous tenants left behind one very unwanted gift... 🪳🪳🪳 When we first moved in, we'd maybe see 1 roach a day in the kitchen. Annoying, but manageable. We kept everything clean - no crumbs, dishes washed, counters wiped down, trash taken out, etc. But somehow the problem just kept getting worse. One became five. Five became...I stopped counting 😭. At that point we realized we weren't just seeing roaches - we had a full-blown infestation 😭😩😱!! Like...a REALLY BAD one. I'm the overly proactive one in our marriage 😂, so I wasn't waiting around. I emptied every cabinet, deep cleaned everything, moved basically our entire kitchen into the dining room, and started researching products. That's when I found this boric acid powder. I applied it throughout the kitchen, and...it absolutely worked. 🙌 Now, if you're dealing with a serious infestation like we were, don't expect overnight miracles. In our case, it took about 4 months with the kitchen mostly torn apart so the powder could do its job. But the results were worth every bit of patience. Today, a year later, I can still walk into my kitchen, flip on the lights, and NOT have to carry a sandal as a weapon 😂. One thing I will mention: This powder sticks around. Even after cleaning, wiping, and vacuuming over the last year, I still occasionally find traces of it in little cracks and corners. That wasn't a dealbreaker for me, but it's something to be aware of. Overall, if you're dealing with a stubborn infestation, I genuinely recommend this product!! It wasn't an instant fix, but it was an effective one. Hopefully I never have to fight roaches again 🤞🪳, but if I do...this is absolutely the product I'd buy again. I still have plenty left over, (I'd say half the bag) so the extra could probably cover the rest 😎

I have a step open kitchen trash can with lid and kitchen bag liner where I put my Great Dane's poop twice a day. I was having a problem with a cloud of newborn flies emerging every time I opened that trash can. It was horrifying. My yard was constantly full of flies, I was spending a lot of money on those fly trap bags but still couldn't get in front of the problem. I put this boric acid powder in an empty spice shaker on a shelf beside the trash can. Every time I put poop in the can I sprinkle a fine powder over the newest layer. After about a week, zero live flies were in the poop container. I was just hoping for a reduction, but this has been so effective that it completely kills them all. The result is that now I have hardly any flies in the yard laying eggs either. So I have reduced the fly population on my property to almost nothing. Fantastic product!

This boric acid powder is effective when used correctly and in thin, targeted applications. I applied it in cracks, behind appliances, and along baseboards in light dusting layers. Results are not immediate, but over time pest activity in treated areas decreased. The key is restraint—too much powder reduces effectiveness because pests will avoid it. This works best as a maintenance or support product, not a standalone solution. Pros: ● Very affordable ● Long-lasting residual effect ● Works on multiple pests Cons: ● Easy to misuse (over-application) ● Slow results

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