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About Harris

Problem solving has a long heritage at PF Harris. In 1924, two years after its founding, the company tackled the Calvin Coolidge White House, which had been overrun for years by roaches and water bugs. Harris’s product was so successful in eliminating the scourge that he was described on the front page of the Washington Times as a "vermin slayer" who has just fought a decisive, winning battle with a horde of cockroaches which infested the lower regions of the Executive Mansion.

Over the course of the next few months Harris took “his final feast” to dozens of government buildings, including the Senate Office Building, the Department of Justice, the Supreme Court and Walter Reed Hospital. Success followed success: Each superintendent of the various buildings was highly satisfied with the results.

The company today stays nimble enough to respond to changing market demands, leading the way in the development of numerous products, including natural insect repellents like Swamp Gator and Swamp Gnat which repel biting insects without using deet. Beyond the products it sells, Harris helps customers find easy and economical solutions to pest problems through helpful labeling, instructive videos and personal advice.

It’s a brand with a reliable past and an innovative future. PF Harris is America’s oldest EPA-registered company. With more than 55 products, the company provides solutions to treat everything from roaches and bed bugs to scorpions and stink bugs.

Using Harris Boric Acid Roach Powder

Shake well before opening. Using the easy applicator, create a barrier through which cockroaches and other insects must crawl. Puff a light dusting of powder in areas such as behind refrigerators, along baseboards and in cracks and crevices where roaches have been seen. The powder contains a lure that roaches will seek out. Take measures to ensure that the powder is kept dry in order to remain effective. 

Boric Acid works by interfering with the roach's digestive system. In addition, the powder will cling to the outside of the roach, helping to kill other roaches when the affected roach returns to the colony. The powder is fast acting; insects coming into contact with the boric acid will die within 72 hours.

Eliminate and Prevent Roaches

Eliminate
Liquid insecticides can be used to treat in and around the infested harborages in kitchens and bathrooms. Treat along and behind baseboards and into cracks and crevices on counters as well as under sinks. Use boric acid roach tablets in hard to reach areas under sinks, and behind refrigerators and other kitchen appliances. Roach powder can also be used behind baseboards and in locations not easily treated with liquid insecticide. Sticky traps can be used to control infestations. Place these traps next to baseboards for optimal effectiveness.

Prevent
Removing excess food scraps and limiting the availability of water in sites that are infested with cockroaches will help control these pests. Be sure to clean up spills and crumbs right away and avoid leaving food out in the open for extended periods. Seal any cracks and openings with caulk.

Features & details

Features

  • Long Lasting - Continues to kill roaches, palmetto bugs, water bugs and silverfish for weeks after application as long as it''s kept dry
  • Fast Acting - Insects coming into contact with the powder will die within 72 hours after initial contact
  • Easy Application - The puffer bottle with extended straw makes application quick and simple for difficult to reach areas
  • Contains Irresistible Lure - Harris food grade lure attracts roaches from their hiding places
  • EPA Registered - Made in the USA & Registered with the Environmental Protection Agency (No. 3-10) for use in homes with people and pets

Product information 16oz

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Q: What do if they are in power outlets?

A: I had a 70 yr old house that was do infested after tenants were evicted that roaches cover…

DLR | 2 years ago

Q: Is there a trick to getting the powder out? No matter how much I shake or squeeze nothing …

A: Hello,

Thank you for your question and I apologize for this inconvenience. Using scisso…

Seller PF Harris | 2 years ago

Q: Can this be dusted into the dry bathtub directly to kill silverfish? Is this carpet safe?

A: We purchased this for silverfish. I put it every place i could even on the edge of the car…

Red House 1 | 9 months ago

Q: Does this kill centipedes

A: when mixed with a small amount of meat...I find it might kill anything.

Amazon Customer | 4 years ago

Customer reviews

4.1 out of 54.1 out of 5
10,696 global ratings

Top reviews from the United States

Janny
5.0 out of 5 starsVerified Purchase
You’ll want to read this!
Reviewed in the United States on August 13, 2019
Size: 16oz
Okay, so this is one of those products that requires some research to understand how it works in order to use it properly. Turns out the number 1 reason for this to not work is using it wrong, in other words the amount you use. With this product, too much is the wrong way... See more
Okay, so this is one of those products that requires some research to understand how it works in order to use it properly. Turns out the number 1 reason for this to not work is using it wrong, in other words the amount you use. With this product, too much is the wrong way to use it, let me explain...

For starters, this isn’t an appetizing product for roaches, its not like sugar where they see it, and they want to eat it, so that was my number one misconception; i thought this was some kind of sweet disguise that maybe attracted them, so i thought “well if they want to eat this, let me put a lot”. That is not how this works!. The way this works is the powder clings to the roaches when they WALK OVER IT, eventually the roach will lick itself as their self cleaning technique, and thats how they ingest the powder. After that roach dies (hopefully in their hiding spot with the rest of the roaches), the other roaches will eat the dead roach and boom, now they''re all poisoned as well.

Now the reason it wasn''t working for me at first was because I was applying very thick and visible lines of boric acid around the kitchen counter, cabinets, drawers, floor, etc. Since this isn’t anything appealing to them, whenever they came across the thick lines of powder they didn''t think “yummy food”, they thought “great, a barrier, let me go around it”, and thats how they missed my traps. The correct way to use this is by lightly dusting the powder so that its almost unnoticeable because your goal is to get them to walk over the powder. If you read the instructions, there’s something about “light dusting”, and that’s exactly what you should do. I feel like that bit on the instruction should be emphasized because that’s the most crucial part when using the product, yet the one part people get wrong the most.

Trust me, after I did the research and realized what I was doing wrong, and appropriately did this, my roach troubles are falling like raindrops!.
761 people found this helpful
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MurAbi
5.0 out of 5 starsVerified Purchase
This stuff works!
Reviewed in the United States on February 19, 2019
Size: 16oz
OMG! When I first ordered it I had my doubts because German Cockroaches took over my building and pest control came multiple times it didn’t help. They were EVERYWHERE in bulk and variety. I started lookig to move out but I didnt want them to cling to any funiture and... See more
OMG! When I first ordered it I had my doubts because German Cockroaches took over my building and pest control came multiple times it didn’t help. They were EVERYWHERE in bulk and variety. I started lookig to move out but I didnt want them to cling to any funiture and move with me...I was disgusted, frustrated, embarassed, ugh you name. It’s been nearly two months since I used this stuff and It’s like I never had them to begin with!
299 people found this helpful
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VasRam
5.0 out of 5 starsVerified Purchase
German cockroach 100% Killer - The best in the market.Need to do some extra tricks (Read Below)
Reviewed in the United States on August 27, 2020
Size: 16oz
This product does work. I git rid if the entire population 99.9 in three weeks of regular use. The rest 1% am sure I will get rid of in the coming weeks. Just simply spreading the power on floor or in corners may not work. But I had to do a bit more... See more
This product does work. I git rid if the entire population 99.9 in three weeks of regular use. The rest 1% am sure I will get rid of in the coming weeks.

Just simply spreading the power on floor or in corners may not work.

But I had to do a bit more from my side,rather than just simply dispersing or spreading the powder, I spread the powder in small "trays" (the lid of the food containers we get from restaurant) .
Then I prepared a "bait" . I took some left over food,cockroach''s favorite food (a little fried rice, potato french fries, oily fried fish and sugar) and mixed it with the powder.
Then I placed a little bait in the mid of the each trays . Placing it mid made sure in order to eat they had to pass through the powder around it.

I placed the trays in potential locations (kitchen, bathrooms ,dining rooms) during the night. I made sure I did clean the area and floor before I placed the tray.

This will make sure the only available food is the one in the tray in those locations.
The bait(good oily food) and powder will easily attract the german cockroachs as the lights go down
Every night they came and ate the bait as well as powder. They passed through the powder and carried home the powder and food along with it.
Next few mornings I just harvested 100s dead cockroach from tray and around the floor. Every night I gave them fresh "bait" (basically oily food with sugar mixed with PF Harris powder) and placed it in mid of tray. They should be able to get into tray and get out easily. Make sure the tray is NOT having TALl smooth surface . Better is paper tray (make one if you can ) . A pizza box is a good one for this purpose.

Some may have went back to the nest and died. They took the powder and food carried along with them to nest.

I read and researched that
The female cockroach (are usually back in nest with egg) and with babies . They ate the powder on the body of these carrier cockroachs coming back and females and babies die.
Once they all start dieing and stop getting the food they start eating the dead ones ( poisoned and having the powder on their bodies) and the rest remaining aldo die.
It will be a chain reaction and the entire population is eliminated.

The point here is you need to let the cockroach go back to the nest after it visited your tray. They will die eventually and will carry the bait and powder back home yk kill the others. Never kill (intentionally) the contaminated carrier cockroachs,let them go back to nest.

It takes more than 72 hours to see a noticeable impact so don''t get discouraged or disappointed. It takes time and very slow but effective and eliminates it from the roots.

It worked for me .I have reduced it to 99.9 % for sure in last three I zm going to continue this for next one month until I achieve 100% success.
173 people found this helpful
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CITY Beauty
5.0 out of 5 starsVerified Purchase
Best Stuff Out There For Roaches
Reviewed in the United States on January 6, 2018
Size: 16oz
I live in an apartment building in Brooklyn never had a roach problem since living here for years. All of a sudden the woman next door moved out and I saw 1 roach and nearly had a heart attack in the kitchen. I was so disgusted. Months down the line I would go into the... See more
I live in an apartment building in Brooklyn never had a roach problem since living here for years. All of a sudden the woman next door moved out and I saw 1 roach and nearly had a heart attack in the kitchen. I was so disgusted. Months down the line I would go into the kitchen and see roaches in the sink and when I turned on the stove I saw baby roaches everywhere. Long story short there was a bad infestation. I tried the gel and sometimes it would work but then it would dry up. I tried the tablets and that didn''t do anything. I bought the boric acid powder and never really used it. I decided to put some boric acid on the floor in the kitchen. The only roaches I started seeing were dead ones this was from months of using the boric acid. I recently saw one tiny one in the kitchen but I put more boric acid on the floor just in case. This might have came from the radiator. Also in the bathroom there was a problem every time I turned on the water I would see one. This problem seemed to be dwindling down. Once again I saw one tiny one in the bathroom but the amount that I used to see before compared to now is from amazing results. This stuff is amazing wow I can now feel comfortable to invite people over again omg.
328 people found this helpful
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Teresa mclarty
5.0 out of 5 starsVerified Purchase
A must buy if u have german roaches
Reviewed in the United States on June 24, 2018
Size: 16oz
Love this! I live in a apartment and its hard to get rid of the German roaches. I have tried everything they just dont go away . I was ready to break my lease and move until i found this. It takes about 2 weeks to really see a difference but after I read it takes 4 days to... See more
Love this! I live in a apartment and its hard to get rid of the German roaches. I have tried everything they just dont go away . I was ready to break my lease and move until i found this. It takes about 2 weeks to really see a difference but after I read it takes 4 days to kill the roach after it has come in contact with the powder I felt much better. I went from seeing 10 + roaches a day to seeing maybe 1. Make sure every 2 weeks u put another layer of the acid down. If you have these roaches you know they WILL COME BACK! I can finally sleep not worring if they are running around my apartment. This product sends them right back to hell where they came from.
180 people found this helpful
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Monica
5.0 out of 5 starsVerified Purchase
Works but is toxic to people & pets!
Reviewed in the United States on October 22, 2017
Size: 16oz
I got this because in the description it says it''s people and pet safe. I wanted a natural/ non toxic way to kill cockroaches in our new apt. When I received my bottle I checked the label for instructions, and right there in bold letters it said it is toxic to humans and... See more
I got this because in the description it says it''s people and pet safe. I wanted a natural/ non toxic way to kill cockroaches in our new apt. When I received my bottle I checked the label for instructions, and right there in bold letters it said it is toxic to humans and pets! I didn''t appreciate the conflicting information! Not cool. I have a small dog, and I didn''t want to have to worry about her licking it from the baseboards. I went ahead and sprinkled it around under my sink, and used the puffer straw to apply it behind the stove and refrigerator. The stuff works. I stopped seeing bugs in about 24hours, to my extreme relief. This is much more convenient than calling an exterminator, and super affordable. I used this alongside the Max glue traps and they''re terrific together.
267 people found this helpful
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B. Harris
5.0 out of 5 starsVerified Purchase
finally decided to buy this (per my memory of great effectiveness in roach capital Houston) after a week of ...
Reviewed in the United States on January 7, 2018
Size: 16oz
stops roaches dead and keeps them away...new neighbor moved in and suddenly I had roaches all over the place (including my bath towel...while it was hanging on the bar!)...finally decided to buy this (per my memory of great effectiveness in roach capital Houston) after a... See more
stops roaches dead and keeps them away...new neighbor moved in and suddenly I had roaches all over the place (including my bath towel...while it was hanging on the bar!)...finally decided to buy this (per my memory of great effectiveness in roach capital Houston) after a week of orkin stuff not working at all. immediate effect once I put a thin line in every corner (and along all baseboards) of the floors. haven''t seen one since...and put did the same in my new apt before I moved in fully...to ensure zero problems. the BEST anti roach product ever!
oh, and I don''t use the straw, I just cut the plastic top at an angle...it''s much easier to use along baseboards that way...
132 people found this helpful
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Anonymous
5.0 out of 5 starsVerified Purchase
It worked!
Reviewed in the United States on July 20, 2016
Size: 16oz
I live in a small apartment and the kitchen was infested with German roaches. We tried everything and those buggers wouldn''t go away. We bought this product and used it as indicated and 2 weeks later...no more roaches. We put it behind all the appliances and across all... See more
I live in a small apartment and the kitchen was infested with German roaches. We tried everything and those buggers wouldn''t go away. We bought this product and used it as indicated and 2 weeks later...no more roaches. We put it behind all the appliances and across all the edges on the floor and countertops. Highly recommend
202 people found this helpful
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