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Customer Reviews for Demon WP Insecticide

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5 stars   677
4 stars   70
3 stars   18
2 stars   10
1 star   17

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Average Customer Rating
4.7 of 5 stars
(792 customer reviews)

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Demon WP Insecticide
$8.81

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Displaying 121 to 150 (of 792 reviews)

  • 2 of 2 people found this review helpful:

    5 of 5 Stars   demon wp
    By Stan on 03/27/2014
    Verified Purchase

    i have used demon for years. its easy, fast, and effective

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  • 2 of 2 people found this review helpful:

    4 of 5 Stars   Great residual for crickets & roaches. Zero Scorpion kill
    By Dr on 09/12/2011

    Poison wiped out all crickets and roaches. Going on 3rd week without any sightings. Ants worked trail though residual. Works better when directly applied to ant colony with a good hose soaking. Has little effect on scorpions. Adult and baby exposed to 2x concentration suggestion. Made them a little drunk but back to normal in 2 days. Overall, happy with purchase. Continuing with blacklight and torch method for scorpions. Scorpion counts have dropped probably due to no crickets. Neighbors complaining now about scorpions.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   DEMON WP
    By Greg on 03/25/2012

    Our home is in a heavily wood area north of Houston, Texas. From the first day we moved in we were seeing a lot of spiders, both inside the house and the garage. We treated the exterior with Diazonon once a year and ended the spider problem. When Diazonon became no longer available, we switched to professional exterminator services. After trying numerous different professional exterminators, and still having spiders, we tired of wasting money on the "professionals". We decided to return to DIY pest control method. After much research we decided to try the Demon WP product. We used 2 scoops per gallon and sprayed inside and outside both the house and the garage. While spraying in the garage we sprayed a medium sized spider directly. It was legs up in seconds. Upon closer examination we found it to be a young black widow spider. YIKES! While spraying inside the house we sprayed a medium sized wolf spider directly. It walked right through a puddle of Demon and just kept going. We kept an eye on him and about an hour later he was balled up dead. Interesting that this product kills black widows in a matter of seconds, but it takes about hour to take out a wolf spider. The day after application we found quite a few dead wolf spiders, june bugs and Mosquitoes outside and no critters inside (dead or alive). We'll provide an update in a few months regarding the long term effectiveness of the DEMON WP product.

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  • 2 of 2 people found this review helpful:

    2 of 5 Stars   NOT IMPRESSED
    By Bob on 09/23/2014
    Verified Purchase

    Several yrs ago I ordered DEMON from you and it worked perfectly. However this last purchase didn't live up to my expectation. I sprayed all around my house...inside and out. I don't know if it's the same formula or what but I'm having to spray a second time. My first order lasted more than a year. BTW...I mixed 2 packets to 2 gals of water as before.

    Expert Response  Expert response:
    The formula for Demon WP has not changed. We would be happy to discuss your situation over the phone so that we can better address your concerns. We are available toll free at 866-581-7378 M-F 9a-5p EST. We apologize for any inconvenience, and we appreciate your business and your comments!

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  • 2 of 3 people found this review helpful:

    5 of 5 Stars   Demon experience
    By Jim on 04/09/2014

    Used the Demon in front of my garage and doors. Next day dead bugs that never got beyond the Demon. Very fine powder so be careful when you open the container because it will start to float out. Where a mask or just be careful and slowly open it.

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  • 2 of 9 people found this review helpful:

    1 of 5 Stars   Poor Product
    By P. on 03/22/2012
    Verified Purchase

    I tried the Demon WP Insecticide on an Earwig that I caught inside my bathroom. I used two packs of the Demon WP 4 pack mixed in 1 gal sprayer of water. The product did not kill or slow the bug down and it was in a cup at first and then on the floor this product did not work. THE PRODUCT SHOULD NOT BE RATED 1 STAR!

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  • 2 of 2 people found this review helpful:

    4 of 5 Stars   Demon WP
    By on 07/22/2013
    Verified Purchase

    Packets inside envelop are a pain to open. Amount to water ratio is very vague. Stuff kills carpenter bees and powder post beetles asap. Use a dust mask when mixing.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Great Item
    By Don on 06/13/2014
    Verified Purchase

    This product is the best thing I ever used when it come to any kind insects specially roaches.

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  • 2 of 7 people found this review helpful:

    1 of 5 Stars   Demon doesn't work
    By Mari on 08/16/2014
    Verified Purchase

    I have now used 2 packets of this product and it flat out doesn't kill a thing. I've mixed it properly in a gallon jug. I just sprayed one ant tonight & it got up, kept going, I sprayed it again and it got up again & kept going. Third time and it still didn't kill this single ant. I would not recommend this product. I'm completely unhappy with it.

    Expert Response  Expert response:
    We are sorry that you are unhappy with the Demon WP. Please be advised that because Demon WP is a residual insecticide, it is not intended to be used as an instant knockdown for listed pests. The active ingredient will still take time to affect pests sprayed with it. If you have further questions about the use of Demon WP, please feel free to call us at 866-581-7378 M-F 9a-5p EST.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Great Stuff
    By Reta on 12/01/2014
    Verified Purchase

    Roach free for almost three years now. Keep on hand to control spiders and other insects in the home. Just spray once every six months. Also great for keeping wasp, yellow jackets and other bees from making a nest around the outside.

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  • 2 of 3 people found this review helpful:

    5 of 5 Stars   Best result
    By Joaquin on 03/27/2014
    Verified Purchase

    I tried everything, however this is the best. I highly recomend this product.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Demon WP Insecticide
    By Bill on 03/12/2013
    Verified Purchase

    Used this around my home one time and have not had any bug problem not even one little ant. GOOD STUFF....

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  • 2 of 2 people found this review helpful:

    4 of 5 Stars   demon: sending bugs to "you know where"
    By Wayne on 09/07/2013

    Demon is the best roach poison i have ever used. it continues to kill roaches for up to one year after spraying an area. I have a problem with spiders, as i live near a lake, and so far, the jury is still out concerning the effectiveness of demon on spiders. time will tell.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Great product A+++++
    By Paco on 12/06/2013
    Verified Purchase

    This stuff works great and lasts really long. I will recommend this product to everyone with any kind of roach issue as this will resolve your problem.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   what i have been looking for!
    By Elizabeth on 12/22/2013
    Verified Purchase

    This product worked alot better than the aerosol spray that I have purchaseing at stores

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Wish I could post a picture A+++++++++++
    By Teresa on 01/11/2014
    Verified Purchase

    I wish I could post a picture of what I found the next morning in my kitchen after spraying Demon WP. The other reviews stating that a white residue is left once dry is correct. However; I would deal with cleaning up any white residue anyday over seeing another roach. I did notice after spraying the roaches came out right away and I thought the stuff wasn't working, the roaches were walking right through the stuff. But to my delight they were dead by morning. It's been about a week and this stuff is still killing. I would recommend this product to anyone who has a bad infestation of roaches. Forget the so called professionals - do it yourself.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Great stuff for Wolf Spiders
    By Gman on 03/15/2014
    Verified Purchase

    I dislike anything with eight legs and unfortunately the spiders and scorpions are hard to kill. Demon WP works better than anything else I have tried. You have to use the stronger concentration for spiders and it does not work instantly but in a day or two you will start seeing results. Glad to have Demon around.

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  • 2 of 3 people found this review helpful:

    5 of 5 Stars   First time user on the Outer Banks of NC
    By on 08/20/2013

    As a former farmer for many years, I am accustomed to working around chemicals and had no problem mixing and using the Demon WP I purchased in a one-pound container. It mixed easily. I was primarily spraying for cockroaches, and it did the trick. Before I finished spraying aound the house, I was seeing dead and dying cockroaches on the ground. We also had a centipede issue inside our beach house, and that was also eliminated. The chemical worked for the insects we were targeting and I plan to use it again. Unless I am mistaken, I mixed around 8-10 one gallon sprayer loads at the higher recommend rate for my 3K sf home, and there was enough material for another treatment remaining. My purchasing experience was also good, and the product arrived sooner than I was expecting using normal shipping. I don't normally provide feedback such as this, but this was a much better than usual experience of purchasing a product online.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   The Right Stuff
    By Cary on 10/01/2011
    Verified Purchase

    Folks, if you want to kill them this is your stuff! Once applied it kills for a year! When cockroaches touch this poison they only crawl about 2 inches and die right there! A drop dead killer!

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Success
    By on 06/16/2013

    We purchased a home about six months ago and found out later that this area apparently has a scorpion infestation. My husband has tried several products with moderate success but was able to keep the scorpions out of the house until recently. After returning from a short trip and locating a live scorpion in one of the bedrooms, and in desperation, I turned to the internet to try to find a solution. This Demon product showed up in my search and after reading several reviews to my husband, he asked that I purchase the one pound container. One week later, he is happy to report that this product has provided the results he has sought. After spraying close to the house and around the driveway and seeing the results, he has now sprayed the perimeter of our property along the curb line and across the edge of the driveway and hasn't seen any scorpions, alive or dead since spraying the perimeter. We're definitely sold on this product and will continue to use it. We hate those little creepy invaders and are thrilled to have found the solution to them.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Demon WP Works
    By Jr on 06/20/2012
    Verified Purchase

    I have bought other products at the local Wal-mart and for the most part they work somewhat. I decided to try Demon WP. We live in El Paso and we have a lot of landscaping rocks around our house. Plus what grass we have is watered 3 times a week. The rock and wet grass attracts tons of those nasty cockroaches. They also end up in your house. I got the Demon WP in mail yesterday plus I ordered the 1 gallon sprayer. I mixed it all up and sprayed all around the outside of my house plus in the rock areas. I woke up this morning and found tons of dead cockroaches on our back patio and yard. Needless to say they never made it inside. I have yet to spray inside but I will. I will never buy any pest products from Wal-mart, K-Mart and etc again. I plan to spray monthly. 4 packs for $10 which makes at least 4 gallons of spray is great compared to the $20 I spent recently getting a 1/2 gallon of some stuff at Wal-mart which worked but not as good.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Demon WP
    By Stan on 07/25/2016

    You can not go wrong purchasing this product, but you need a sprayer !

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Demon WP
    By Stan on 07/25/2016

    You can not go wrong purchasing this product, but you need a sprayer !

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Demon WP
    By Stan on 07/25/2016

    You can not go wrong purchasing this product, but you need a sprayer !

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   great stuff
    By Eric on 07/22/2016

    This stuff is awesome. Kills ants, spiders in a matter of minutes. I highly recommend this it work😄

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Kills them dead and keeps killing them
    By Ivan on 07/22/2016

    I ordered Demon WP insecticide for my folks and myself because with all the rain we been having things were starting to crawl around like they owned the place. I doubled up and put two packages in the mix instead of one and I am more than happy with the results. The few that I have seen may crawl but they are not crawling fast instead they are doing that pretty little death twitch I enjoy seeing them do. Sprayed the outside windows panes and bricks where I saw ants marching. They are now in full retreat. Thank You Demon WP.

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  • 2 of 2 people found this review helpful:

    4 of 5 Stars   Demon WP
    By Wayne on 07/07/2010
    Verified Purchase

    Just began using Demon WP 2 weeks ago. I have not seen one insect since I applied it. Be careful, it does leave a white residue, but no problem to wipe up in a few days after. ROLL TIDE ROLL

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Quick service thanks
    By Michelle on 06/23/2010

    I received my product much quicker than I expected...thank you.  Demon works very well. I felt as though I was being taken over by the very large palmetto bugs.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   It's great
    By Kathy on 10/02/2012
    Verified Purchase

    I brought the kit that has every thing in it. My house was heavily infested with roaches, and this stuff works everything gave use great coverage better than anything I got at the store this was name brand stuff that I brought. I well highly recommend it to my friends thanks again

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars   Best product Ever
    By Amy on 07/09/2016

    I have used many organic sprays that smell horrible. I have used many regular sprays that you know they are not healthy to use in the house. But Demon is the only one that works as fast and effective without the smell.

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Displaying 121 to 150 (of 792 reviews)