HARRIS Boric Acid Roach and Silverfish Killer Powder w/Lure for Insects (16oz)

Mixed sugar with the boric acid, 50/50. The ants jumped on it twenty at a time, they LOVED it. By the next day they were all dead. It killed all the ones back in the ant hill. Excellent product. And I love how enthusiastic the use of sugar made the ants. They could not get enough of the mix. And the next day no more ants!

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 downEvery 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 thatThe 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.

I originally bought this product about 3 weeks ago. I rent a house and when I moved in about a week after it became very apparent that there was a huge roach infestation. Like, we couldn't even cook, eat, leave something on the counter for a few minutes. We couldn't do anything without it getting infested with bugs almost immediately. I can't even tell you just how much food we've had to throw away because of the roaches, they get into the bags of bread and everything else. I tried everything under the sun to get rid of these bugs, sprays, traps and anything else you can think of that you can buy in the store. I was pretty much at my wit's end because about a month-and-a-half ago we felt like we were literally being run out of our house by these bugs and the landlord was not doing anything. So I went perusing around Amazon and found this. At first I was relatively skeptical and I happen to have five kids so there are certain places in the house where you would see an abundance of bugs, particularly the kitchen the bathroom and it was actually getting to the point where they were just running out in broad daylight around the house on the floor on the walls, just everywhere. So I decided to send my children to their dad's house so that I could basically set the house up to not be touched for at least 72 hours. I started by scrubbing everything down, cleaning making sure there was no dishes, no water, no access to food which meant that I had to buy Ziploc bags and plastic containers that were airtight. I started putting everything into those containers. I also eliminated most of the cardboard which are places they like to hide.. Then I started making sure that there was nothing else that was going to save them. Then I proceeded to go to all the places that I saw a lot of roaches and sprinkled this powder in those areas, that included behind the sink into the drain after I had made sure that the sink was fully dry all down the sides of the sink. Then I started doing the countertops, anywhere that I saw that they would crawl, because you ultimately want them to come in contact with this in any way possible. If you put a big mound of it they're not going to walk over it they'll just walk around it. So you want to be kind of conspicuous when you're sprinkling this and not overdo it. The ultimate goal is to get as many bugs to come in contact with this as possible without them realizing that they've come into contact with it. So then I decided that I was going to gently sprinkle the entire kitchen floor with it because I knew that I was going to be leaving for a few days. This will only work if you don't disrupt it because the bottle specifically states that it takes about 72 hours before you're going to start seeing dead bugs. So after sprinkling this all over my kitchen floor and in other places that I felt were hot spots for bugs I proceeded to leave the house for 72 hours. I didn't go far I was able to come back each day and check in to see how everything was going and the plan actually worked flawlessly, because of the fact that they had no choice but to crawl across the kitchen floor. So it's been approximately two-and-a-half to three weeks since I did this and I would say that the issue has been decreased by about 50 to 60%. Now I've read that a very large investigation can take up to 2 months or 8 weeks but I do see a very large decrease in the amount of bugs that are in this house. I actually woke up this morning and there were dead bugs scattered everywhere. I actually thought that maybe my kids had sprayed bug spray but when I asked them they hadn't so I know that the product is working as it's supposed to. I'll update my review in about three or four more weeks when it's been almost 2 months.* edit 2 month update *We probably have nipped the infestation by 75 percent. Be persistent thats what this needs. I even started dusting this in nooks and crannies around the sink where the counters were kind of separated. Worked like a charm. We still see activity but it's random and I can now put a bowl on the counter or prep food and if i need to run to the bathroom i can safely. Also the powder cannot get wet if it does its basically useless. Goodluck all...