• Call (800) 479-6583
  • Mon-Fri 8am-5pm
  • |
  • Sat 9am-5pm
Menu

Demon WP Insecticide

Free Shipping on All Orders

Demon WP Insecticide is one of the most popular do it yourself pest control products available to buy. It is a cypermethrin insecticide powder that has no odor and a great residual. When applied properly Demon WP controls brown recluses, roaches, and many other insects. It is recommended to only use Demon WP on light colored surfaces as it may leave visible residues on darker surfaces.

Target Pests

Demon WP Insecticide will kill and control Ants Aphids Boxelder Bugs Centipedes Chiggers Cockroaches Crickets Earwigs Firebrats Fleas Flies Mites Mosquitoes Pillbugs Silverfish Sowbugs Termites Bees Carpenter Ants Carpenter Bees Fire Ants Sod Webworms Spiders Ticks and Wasps.

For Use In

For use as a general surface crack-and-crevice and/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 in nonfood/nonfeed areas include but are not limited to aircraft (cargo and non-cabin areas only) apartment buildings boiler rooms buses closets correctional facilities decks entries factories fencing floor drains (that lead to sewers) food granaries food grain mills food manufacturing processing and serving establishments; furniture garages garbage rooms greenhouses (non-commercial) hospitals (non-patient areas) hotels and motels houses industrial buildings laboratories landscape vegetation locker rooms machine rooms mausoleums mobile homes mop closets mulch nursing homes offices patios pet kennels porches railcars restaurants storage rooms schools sewers (dry) stores trailers trees trucks utility passages vessels vestibules warehouses wineries and yards. Food-Handling Establishments.

Application

A general surface, crack and crevice and/or spot treatment for residual control. Use between 1-2 packets (Envelopes) or 1-2 scoops(Tubs) per gallon of water for a concentration of 0.1%-0.2% of active ingredient. Demon WP leaves a white powdery film that is especially noticeable on dark surfaces.Use D-Fense SC Insecticide too avoid visible residues

Coverage Area

One envelope of Demon WP will make up to 4 finished gallons of Cypermethrin spray treating 4,000 square feet or approximately 2 averaged size houses. Each pound of Demon WP will make up to 48 gallons of finished product.

Time to Kill

Demon WP will begin killing insects in 5 minutes and continue providing pest control for 3 to 5 months.

Mix Rate

Each foil envelope of Demon WP in Water-Soluble Packets contains water-soluble packets of Demon wettable powder. 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. 

Active Ingredient

Cypermethrin 40%

Demon WP Insecticide

Demon WP Delivers Long-Lasting Control

Demon WP Insecticide has been an industry leader to control pests indoors and outdoors, including clean-out of residential and commercial non-food handling areas. Its fastacting formula continues to work long after the job is done, for powerful results that last.


Nowhere For Pests To Run

The strength of Demon WP lies in its long-lasting residual activity on a variety of different surfaces. Its versatile and easy-to-use formulation provides Pest Management Professionals (PMPs) with a proven, effective solution for pest infestations.

• Low concentration of the active ingredient, cypermethrin, required for control

• Crack-and-crevice or spot treatment approved for both indoor and outdoor use

• Provides control on both penetrable and impenetrable substrates

• Water-soluble packets eliminate measuring and dissolve quickly

• Cost-effective with long-lasting residual activity

• No objectionable odor

• Has shown no sign of permanent staining when tested on a variety of different indoor surfaces

 

Quick Knockdown, Low Rates

Despite its low use rates, you will see pest knockdown and control in less than one hour. Demon WP is especially efficient for cockroach control, as knockdown occurs even faster in insects that ingest the insecticide while grooming themselves.

While Demon WP is particularly effective against cockroaches and spiders, it is also labeled for the control of 20 other pest species, including ants, centipedes, fleas, mosquitoes, bees, wasps and ticks.

How To Apply Demon WSP

Indoors, Demon WP should be applied as a crack-and-crevice or spot treatment. Outdoors, Demon WP can be applied as a broadcast treatment by pump-up or power sprayer up to a maximum height of three feet on surfaces of buildings, porches, screens, window frames, eaves, patios and other areas where pests are found. Test a small area first according to label directions to verify that the paint or siding finish will not be affected. Demon WP can also be used on lawns, ornamental trees and shrubs around residential, institutional, public, commercial, agricultural and industrial buildings; and parks, recreational areas and athletic fields.

You can find Demon WSP in convenient, water-soluble packets that eliminate measuring. Just drop them into water, and when the unique packaging dissolves, you’re ready to work. The wettable powder dissolves quickly in water for an ideal suspension that won’t clog your application equipment. Additionally, you will find the packets are easy to store, transport and handle.

 

Don't Forget To Add These Suggested Items To Your Cart

Make sure you have the right sprayer for this product: We suggest a 1 Gallon Pesticide Sprayer

 
Alternatively, you can purchase Reclaim IT Insecticide which is our own patented brand of insecticide and a better value and can be used to form a long-lasting termite barrier.

 
Make sure you stay protected when handling chemicals with the help of our homeowner safety kit.

 

Product Q & A

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 15 questions Browse 15 questions and 35 answers
Can I use demon in my kitchen and with a dog in the home?
Renee on Aug 15, 2017
BEST ANSWER: Yes, you can use Demon WSP in the kitchen you will want to use according to label and avoid apply in places not allowed on label.

A general surface, crack-and-crevice and/or spot
treatment for residual and contact control of ants,
carpenter ants, cockroaches, crickets, spiders and
other insect pests.
How often do you have to spray?
Paula C on Jul 15, 2018
BEST ANSWER: I am out in the country so pests can be a real problem. I try to spray every three months so no pests will have an opportunity to return. Although I usually forget and have gone up to year with no problems. This stuff is the best I e ever used you just have to be careful when using so you don’t get it on your skin or pets.
Fleas, outdoor and indoor?
A shopper on Aug 12, 2017
BEST ANSWER: Demon WP will kill fleas both indoors and outdoors. You can broadcast it outdoors but indoors it is only for crack and crevice application. For a broadcast treatment indoors we recommend Novacide and guarantee it will control all indoor fleas 100%. I use it twice a year in my house and have not had any fleas in 5 years. It also kills roaches, ants, and spiders.
Novacide Flea & Tick Killer
Novacide Flea & Tick Killer
I have about 15 Cicada Killers holes. How much Drione dust do I need?
I this product better that Demon WP for Cicada Killers?
Ral R on Aug 22, 2017
Demon WP Insecticide
Demon WP Insecticide
Drione Dust
Drione Dust
BEST ANSWER: It would be better to use the Demon WP to spray the openings you will have to get the chemical down in the holes.

Drione dust will not hold up with moisture and it is always recommended to use D-Fense Dust outside or in heavy moisture areas. https://www.solutionsstores.com/d-fense-dust
Will demon WP kill army worms in my yard?
A shopper on Aug 17, 2018
BEST ANSWER: Demon will kill anything that comes in contact with it. It won’t kill instantly but I guarantee within a few minutes they are history!
We sprayed our patio with Demon and it killed the June bugs and grasshoppers. My 4 month old German Shepherd puppy has eaten some of the dead bugs. Will this hurt her?
A shopper on Aug 15, 2018
BEST ANSWER: Hi I hope not. But if you see any thing thats different in your dogs behavior take it to the Vet right away.
My backyard is infested with house flies. Having outdoor events is quite difficult because of large amount house flies surrounding the food and guest. Will demon help eliminate that problem?
Sarah J on May 8, 2018
BEST ANSWER: Yes, Demon will help with controlling flies. I would recommend Bifen IT product instead, less cost per applications. You will want to apply to areas that the flies are resting, sides of home, fences, trash area. You can also use it for mosquitoes and other insects. This does not kill on contact but they will come in contact with the surface and eventually die.

https://www.solutionsstores.com/bifen-it-insecticide

Greatly helps reduce the fly population.

https://www.solutionsstores.com/flies

Other items that really work, and fly control can be difficult is to use sticky traps such as the Goldsticks to lure them away from areas that you are trying to enjoy, and also trap them, very low cost and last and work.

https://www.solutionsstores.com/catchmaster-gold-stick-fly-traps-large
Do it kill flea eggs?
T F on Jun 2, 2018
BEST ANSWER: No, Demon WP will not kill flea eggs, neither will any other insecticide.

The eggs are protected from insecticides. Would recommend using Novacide for inside of the home and Permethrin SFR for the outside yard.

We have some great flea kits available.

https://www.solutionsstores.com/solutions-flea-control-kit
Where can you buy it?
A shopper on Feb 19, 2018
BEST ANSWER: You can buy it directly from Solutions Pest and Lawn, online and the item ships same day, for free with typically a 2 day delivery time.
So it is kid and pet safe?
A shopper on Aug 20, 2017
BEST ANSWER: Yes, Demon WSP is safe to use in homes that have children and pets. You will want to keep them out of the area during application and until it is completely dry.
will it kill or deter scorpions?
Terri on Jul 23, 2017
BEST ANSWER: Yes, Demon WP, when applied in areas that a scorpion would come across the surface will work well to control Scorpions.
Will this product kill gnats
Nikki on Jul 7, 2017
BEST ANSWER: Demon WP. would kill gnats if them come income in contact with the areas that have been treated. There maybe better options to control gnats, depending on where the issue is located.
for fleas is there a method for complete yard coverage? If so, how long do my pets need to wait before going back into the yard?
Jeff on Jun 29, 2017
BEST ANSWER: We recommend 2 products for outdoor flea control, one use permethrin SFR, and really get the soil wet when applying, fleas will be in the top layer of the soil. Then after you have control, apply bifen granules, this will get you an entire season of control.

https://www.solutionsstores.com/knowledge-base/fleas-ticks

https://www.solutionsstores.com/bifen-lp-granules

https://www.solutionsstores.com/permethrin-sfr-insecticide
Will Demon WP kill the tiny red Clover Mites that are infesting my back cement patio?
Hammer614 on May 9, 2017
BEST ANSWER: Bifen IT would be a better option for controlling Red Clover Mites, it will solve the problem, spray the surface till run off with 1 ounce of Bifen IT to 1 gallon of water. https://www.solutionsstores.com/bifen-it-insecticide
Is it safe to spray inside with pets around.
Larry on Jun 2, 2016

Customer Reviews

5.0 / 5.0
38 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
37
1
0
0
0
Easy to Use
4.9 / 5
Efectiveness
5.0 / 5
Value
5.0 / 5
Safe to Use
4.6 / 5
Would you Recommend?
Yes (9)
Would you Recommend?
Yes
So far, so good
Seems to be working well, but still need to repeat a few times to be sure.
September 11, 2018
Purchased
1 month ago
Easy to Use
5 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Yes
Best on the market!
Best on the market!! Kills all bugs!! Safe around pets!
August 8, 2018
Purchased
2 months ago
Would you Recommend?
Yes
Really awesome stuff
I wouldn’t use anything else, I must say Demon XP is awesome. Yes I would highly recommend the Demon XP
August 6, 2018
Purchased
2 months ago
Easy to Use
5 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
4 / 5
Would you Recommend?
Yes
Works great!
It actually works unlike other stuff you buy at Walmart and places like that.
July 17, 2018
Purchased
1 year ago
Easy to Use
4 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Yes
Good - much better than store bought solutions.
Effective. Works during intense times in mid summer when most likely times for bugs. Works well as treatment, and when prevention is wanted when areas are treated twice a year.
July 16, 2018
Purchased
1 year ago
Easy to Use
5 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
4 / 5
Would you Recommend?
Yes
We purchased this on the internet but I heard about it in Florida where citizens are able to buy it from a poison store (the same poisons used by poison control companies). Washington State has a rule that poison cannot be used more than 5 feet from the house so I could not hire a company to do it.
June 4, 2018
Purchased
5 months ago
Easy to Use
5 / 5
Value
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Yes
This stuff is great!
Sprayed all around the house,dead insects and bugs all around. cant beat the price,Thanks
June 2, 2018
Purchased
4 months ago
Easy to Use
5 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
4 / 5
Would you Recommend?
Yes
good co.
received product in a few days, good service.thanks Butch
May 1, 2018
Purchased
5 months ago
Easy to Use
5 / 5
Efectiveness
5 / 5
Value
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Yes
Good spider control
I have found Demon WP to be very effective in controlling spiders around the house. Spiders are the one thing that we have in and around out South Carolina home. When spiders start to appear around the home, one application of Demon WP under the siding at the foundation keeps them out for several months. When it dries it leaves a powder, so I have not used it inside except for the garage.
November 2, 2017
Purchased
11 months ago
Property Manager
Iâ??ve been using this for years! Iâ??m into maintenance and property management. Itâ??s saved us a lot of money and has gotten rid of ants and roach infestations.
October 22, 2017
Purchased
11 months ago

Contact Us

x