Demon WP Insecticide

Not for sale to: NY, CT
NY residents, please see our New York Pest Control Products page.
Availability: Normally ships in 1 business day.
For large order quotes please call us at 1-866-581-7378.
| 1 envelope(s) | $16.48 | ||
| 2 envelope(s) Save! Get 2 for only $13.23 each | $26.46 | ||
| 3 envelope(s) Save! Get 3 for only $9.98 each | $29.94 | ||
| box (12 envelopes) | $99.90 | ||
| |||||||
Demon WP is an excellent professional insecticide that's perfect for crack and crevice and/or spot applications for residual and contact control of Ants, Carpenter Ants, Cockroaches, Crickets, Spiders and many other insect pests. Demon WP can be purchased as either an envelope of four water-soluble packets (shown here) or a Demon WP one-pound jar (equal to 12 envelopes of Demon) with a scooper for easily making up to 48 gallons of solution. Demon should be applied with a poly sprayer.
| Active Ingredient: | Cypermethrin 40% |
| Target pests: | ants, carpenter ants, cockroaches, crickets, spiders and certain other insect pests. |
| Application: | Demon WP leaves a white powdery film that is especially noticeable on dark surfaces. |
| Yield: | One envelope contains 4 water-soluble packets and makes 2-4 gallons of solution. |
| NOT FOR SALE TO: | NY, CT |
| Manufactured by: | Syngenta |
Demon WP (Water-soluble Packets) Insecticide is for crack and crevice and/or spot applications for residual and contact control of Ants, Carpenter Ants, Cockroaches, Crickets, Spiders and certain other insect pests. The Demon WP water soluble packets make mixing and use very easy when used with a 1 gallon compressed air sprayer. (See our selection of sprayers in our “Tools and Sprayers” section). Demon WP is for crack and crevice or spot treatment for residual and contact pest control in, on and around buildings and structures and their immediate surroundings and on modes of transport. Permitted areas of use include, but are not limited to, industrial buildings, houses, apartment buildings, laboratories, buses, greenhouses and the nonfood/feed areas of stores, warehouses, vessels, railcars, trucks, trailers, aircraft (cargo and noncabin areas only), schools, nursing homes, hospitals (non-patient areas), restaurants, hotels and food manufacturing, processing and servicing establishments.
Demon WP Authorized by the USDA for use in inedible product areas in Federally inspected meat, poultry and egg processing plants.
Each foil envelope of Demon WP Insecticide in Water-Soluble Packets contains four water-soluble packets of Demon wettable powder (WP). The foil envelope must be opened for use. Because water-soluble packets readily dissolve in the presence of moisture, do not allow them to get wet before adding to the applicator tank.
Wear dry gloves when handling the water-soluble packets. Handle with care because excessive handling may cause rupture of the water-soluble packet. Unused water-soluble packets should be stored in the original foil envelope, folded over to minimize exposure to moisture.
Demon WP Insecticide in Water-Soluble Packets are intended for dilution with water for applications. For best results, dilution should be achieved if the following steps are taken:
1. Fill applicator tank 1/2 with water.
2. Add desired Demon WP Insecticide in Water-Soluble Packet(s).
3. Allow 1-2 minutes for dissolution of water-soluble packet(s).
4. Agitate, stir or shake applicator tank.
5. Finish filling applicator tank and agitate again before use to ensure satisfactory suspension.
Note:
• Upon standing without agitation for more than 1 hr., the applicator tank should be agitated, stirred or shaken again to achieve satisfactory suspension.
• Make up only amount of application volume as required.
• This product should not be applied with oil.
Tank Mixing
Demon WP Insecticide in Water-Soluble Packets may be tank mixed with other currently registered pesticides unless expressly prohibited by the product label. A small volume mixing test with the other products is recommended to ensure compatibility. Observe all restrictions and precautions which appear on the labels of these products.
Cockroaches, Spiders, Crickets, Scorpions, Silverfish, Ticks and Firebrats
Apply as a coarse, low pressure treatment to areas where these pests hide, such as baseboards, corners, storage areas, closets, around water pipes, doors and windows, attics and eaves, cabinets, sinks, furnaces, stoves, behind and under refrigerators, the underside of shelves, drawers and similar areas. Pay particular attention to cracks and crevices; also see Outdoor Surface Use.
Ants
Apply Demon WP to any trails, around doors and windows and similar areas where ants (including carpenter ants) may be found. Apply perimeter barrier treatments to prevent infestation as described below; also see Outdoor Surface Use.
Bees, Carpenter Bees and Wasps
Thoroughly treat nest and entrance, surfaces and surrounding areas with Demon WP where these insects alight; also see Outdoor Surface Use.
Assassin Bugs, Boxelder Bugs, Sowbugs, Pillbugs, Millipedes, Elm Leaf Beetle and Centipedes
Apply around doors and windows and similar areas where these, or similar perimeter pests, may be found or where
Rating Snapshot
| Average Customer Rating![]() |
|
18 of 19 people found this review helpful: By Matt Gregor on June 2, 2009 Excellent product. I have been using Demon WP Insecticide for MANY years mostly for exterior barrier treatment and in and around garages. I was very impressed. I will never forget the first time I used this product. I sprayed a heavy line in front of our 3 car garage which was getting bombarded by all kinds of crawling insects. It created about a 10-12" line on a hot & sunny day and it dried very quickly. I did it a second time thinking it evaporated, again it dried within a few mins. Came home from work the next day and a solid line of dead bugs exactly where I sprayed. Was as if it was an invisible electric fence. At this point I was sold on this and nothing else. I have continued to use it for years without fail. I found it lasts quite a while but depends on how much direct rain the treated surface area gets. Recommend 100%Was this review helpful to you? |
|
18 of 18 people found this review helpful: By George Wentworth on March 22, 2009 "It just works" says it all. I have been using Demon WP Insecticide for 10 years. Forget what you read about multiple applications per year. Maybe outside, but inside, unless you wash or vacuum it away, it lasts forever. I haven't used it in 2 years indoors and it's still killing. I thought, after two years, though, another application couldn't hurt. The first time you use it, when you wake up the next morning, you will be in awe of the dead insects in your house. Just do every base board, even in cabinets and closets and every threshhold into your house, garage, carport, etc...threshhold exteriors need to be repeated if exposed to the elements. This stuff is the last word in pest control. Don't waste your money on supermarket and building supply store junk and pest control companies that come out and use this same stuff, and bill you $250.Was this review helpful to you? |
|
12 of 12 people found this review helpful: By Joyce Casey-Robertson on July 6, 2008 Great product!! I've been using this product for 2 years and living by the ocean, we have our fair share of palmetto bugs, roaches and every crawly bug known to man. Demon WP keeps the house insect-free and considering I have a bug phobia, this means a great deal knowing that there aren't any unwelcomed pests crawling around our home. Anyone having a problem with bugs should try this product...you'll be glad you did!!Was this review helpful to you? |
|
10 of 10 people found this review helpful: By C.H. from Ga on March 4, 2008 Demon WP does the best job killing roaches with the fastest knock-down I have ever seen . However, for spiders it doesn't fair so well in my opinion. Only complaint is it leaves a slight stain on wooden floors and baseboards . It keeps killing a long time so re-spraying is only like 4 or 5 times a year . That itself will save you a bundle of money on exterminators.Was this review helpful to you? |
|
8 of 8 people found this review helpful: By J.H. from GA on November 10, 2008 Demon WP Insecticide powder works wonders for controlling bugs outside, and you don't have to spray chemical's inside your house. Very pleased, been using it for 4 years!Was this review helpful to you? |
|
8 of 8 people found this review helpful: By Kevin from Houston, TX on August 28, 2007 I have 2 large dogs in my house. Had fleas really bad. I tried every type of bug bomb- Home Depot, Lowes, and Walmart had and it seemed like they multiplied. My parents turned me on to this product Demon WP. I sprayed my baseboards, windows, doors, weep holes in the brick, the entire perimeter of the house, the soffit on the house, and the perimeter of my yard. After all that, I still had 2 pouches left, so I went ahead and sprayed my lawn. I have not seen another live bug in the house for 2 years. I may not have applied it the way i'm supposed to, but this stuff is awesome. Highly recommended.Was this review helpful to you? |
|
5 of 5 people found this review helpful: By Chris from Georgia on February 21, 2006 I have used Demon WP and I know it works . If you have a roach problem in your home this will kill them and will keep killing for months . It goes on wet and dries to a powder . You will be seeing dead roaches in 24 hours and 1 application will last months of killing power . It is safe too, I have pets and a small child and have never smelled or had a problem like pest control services cause . Try it and you will be satisfied.Was this review helpful to you? |
|
4 of 4 people found this review helpful: By Jake from Gilbert, AZ on July 11, 2007 I have just put on Demon WP inside and outside my house to control earwigs and roaches a day later I a few dead roaches in my garage and a few outside along with a Black Widow! I didnt even know I had those. I feel a bit safer knowing that my 2 year old, 3 month old, and small dog should be safe. Well, I dont know about my 2 year old. He's in everything;) The local pest control service wanted 50 dollars a month to get rid of bugs or 150 for a one time application. For 15 dollars and 4 treatments that probably will work better anyway. Forget the exterminator:)Was this review helpful to you? |
|
2 of 2 people found this review helpful: By Alma from Las Vegas, Nevada on July 7, 2007 Amazing product. I had a problem with crickets in my garage. The day before I used Demon WP, I tried the Ortho Home Defense spray that you can get at any home improvement store. Ortho worked to kill crickets if I sprayed directly on them. I killed all the crickets I saw, but a couple of hours later there were a ton more, even though I had sprayed all the cracks and crevices. Well, the next day, I received Demon WP along with the plastic Chapin sprayer. Usually there are at least 20 crickets all over the walls of my garage. This morning, I went into my garage and checked again. This time there were a bunch of crickets on the garage floor...but they were all dead. Demon WP definitely works!Was this review helpful to you? |
|
2 of 2 people found this review helpful: By Dee C. from Walters, OK on July 13, 2007 I sprayed this Demon insecticide in closets, under cabinets, appliances and outside of the house. I see a lot of dead bugs now and no live ones. It even killed a few spiders and other bugs outside the house. It is easy to use with a pump sprayer . I would highly recommend it to everyone . Thanks and I will buy again .Was this review helpful to you? |
| Displaying 1 to 10 (of 25 reviews) |
| See all 25 customer reviews |
![]() | Question about this product? Ask our product experts... | |
|
|
|
|
|
|
|
|
Purchase and Buy Demon WP Insecticide now
with the best online lowest price and free shipping!
We only sell professional do it yourself pest control products.
These products are not available in stores such as Home Depot, Lowes, Walmart or Ace Hardware.







