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Demon WP 4 Water Soluble Sachets

105 reviews
$12.95

4 Water Soluble Sachets - Makes 4 Gallons of Spray!

Not For Sale To: CT, SC

Demon WP Quantity:
  • Single (1) 4 Pack - $12.95
  • Buy (2) 4 Packs - $24.95
  • Case (12) 4 Packs - $127.95
  • *SALE* Single (1) Demon 4 Pack + Chapin 1 gal Sure Spray - $34.95
  • *SALE* Case (12) Demon 4 Packs + Chapin 1 gal Sure Spray - $139.95

Treat Your Home Like A Pro!

Demon WP may be used as a general surface, crack and crevice and/or spot treatment in the non-food areas of food handling establishments. Control your cockroaches with the strength, speed and staying power of Demon WP TODAY !

Compare to: Cynoff, Cyper, Viper

Demon WP is the pest professionals favorite sprayable pesticide. Used by all the Pro's. It's an easily mixable, practically odorless spray for residual and contact control of ants, carpenter ants, cockroaches, crickets, spiders and over 30 insect pests. Convenient, easy-to-use wettable powder insecticide. Demon WP insecticide is a wettable powder formulation containing cypermethrin, that is known for its strength, speed and staying power when controlling cockroaches, spiders, scorpions and other pests. Demon WP may be used as a general surface, crack and crevice and/or spot treatment in the non-food areas of food handling establishments. Control your cockroaches with the strength, speed and staying power of Demon WP TODAY!

Features:
* Low odor
* Long lasting, up to 90 days of residual activity
* For use indoors and outdoors around most homes and buildings
* Convenient packaging and easy-to-mix formula available in water-soluble sachets
* Provide pest knockdown in less than 1 hour
* Easy-to-use formula dissolves quickly to create an ideal suspension that won't clog equipment
* Versatile on both porous and nonporous surfaces
* Ideal for clean-out of cockroaches, spiders and other pests in residential and commercial non-food handling areas

Uses / Applications:
For use indoors 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, livestock/poultry housing, 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.

For use outdoors as a residual spray to surfaces of buildings, porches, screens, window frames, eaves, patios, lawns, refuse dumps, garages and other similar areas where these pests are found. Also, may be used as a spot treatment in applications to lawns in landscaped areas in and around residential, commercial, institutional and industrial buildings, and similar areas where these insect pests are active.

Applications:
0.1% - 1 water soluble packet in 1 gallon of water
0.2% - 2 water soluble packets in 1 gallon of water

4 water soluble packets makes 4 gallons of spray at 0.1%

Target Pests:
1 water soluble packet in 1 gallon of water:
Ants, Aphids, Assassin Bugs, Boxelder Bugs, California Oakworm, Centipedes, Chiggers, Chinch Bugs, Cockroaches (maintenance), Crickets, Earwigs, Elm Leaf Beetle, Firebrats, Fleas, Flies, Millipedes, Mites, Mosquitoes, Pillbugs, Silverfish, Sowbugs, Termites

2 water soluble packets in 1 gallon of water:
Ants, Bees, Carpenter Ants, Carpenter Bees, Cockroaches (Clean-out), Fire Ants (Mounds), Scorpions, Sod Webworms, Spiders, Ticks, Wasps

Demon WP Active Ingredients: Cypermethrin............................40.0%

Not For Sale In: CT, NY, SC

DEMONPCK
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Questions & Answers
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Popular Questions

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RonDawson  • 
Demon WP is not inherently harmful to pets when applied properly. Basically, keep people and pets away from any treated areas until it has completely dried. Here is a link to the label - http://www.epestsupply.com/images/Pro...
Source: http://www.epestsupply.com/images/Pro...
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Guest  • 
I can't use toxic chemicals due to cancer. See more »
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RonDawson  • 

Unfortunately, my experience and knowledge of chemicals and so called "organics" is that nothing is purely "safe". In fact, most of the ingredients in the "safer" and "less toxic" chemicals are nothing I would consider safe enough to breath, place on my skin or ingest. So with that being said, "safe" and "pesticides" in my opinion can never mix. If a chemical or substance kills anything, it is toxic to some degree.

See full answer »
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RonDawson  • 
Demon Wp will kill most german cockroaches on contact. There are some strains of german cockroaches that are "resistant" to "synthetic pyrethroids" of which Demon Wp is one of those chemicals. So basically if you spray it and it doesn't kill them, they are probably resistant.

The best products to use are baits upon which German Cockroaches will feed that have a "transfer effect" such as Maxforce FC or Advion.

We have a complete page on German Cockroach control you may want to read, click here… See full answer »
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Guest  • 
Demon power against wolf spiders and ticks. Lawn safety for children after demon application. See more »
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RonDawson  • 
Yes, Demon WP is a great product for killing spiders and also ticks - indoors.

It is not the best product for treating lawns as it is way too expensive. Bifen is the recommended product for lawn treatments. It is safe if mixed and applied according to label directions. Let everything dry thoroughly before allowing children on it.
Source: http://www.epestsupply.com/cgi-bin/sh...
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Guest  • 
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RonDawson  • 
Demon WP is not labeled to be used on mattresses or to control bed bugs. We have had some reports that people used it with some success.

I would be very cautious about using Demon indoors. It has a lot of skin irritation issues when used on surfaces where there will be direct skin contact.

A much better alternative for bed bugs is Temprid FX. Here is the link - https://www.epestcontrol.com/pest-pro...
See full answer »
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lucibuster  • 
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RonDawson  • 

No. If your pet eats a few grass blades, then the amount of chemical on them is not enough to harm them. They would have to consume a large amount to have any kind of effect.


See full answer »
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RonDawson  • 
Demon Wp when mixed with Tap Water, needs to be used within 2 days or it will go bad. The minerals, calcium and chlorine in tap water will break the Demon Wp down. So only mix what you need to use. If you find that you have extra Demon left over after you spray, pour it out next to your foundation and then rinse the spray tank out and then fill it with water. Leave the sprayer stored full of water. This will help to keep the hoses and seals moist and hydrated, otherwise the tank will dry out.

Ron
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mcramm  • 
I have found that scorpions are nesting in a concrete block retaining wall in my back yard. Some have been entering the house. Can I just spray the area with Demon or do I have to actually make contact with the scorpion? See more »
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RonDawson  • 

Demon WP should work both ways. It works on direct contact, and it also has a residual effect. If scorpions are nesting and living inside a cement block retaining wall, then you need to figure out how to get the Demon WP inside of it.


See full answer »
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Guest  • 
army worms See more »
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RonDawson  • 
Demon WP is not specifically labeled for army worms. It will kill them and is labeled for use on lawns. Here is a link to the label - http://www.epestsupply.com/images/Pro...
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Guest  • 
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RonDawson  • 
It will to some extent, like all pesticides. It will absolutely kill them on contact. The problem is that carpenter bees will land on the wood and then make an egg deposit hole. This hole needs to be treated inside with either Demon spray or a dust insecticide such as Viper, Talstar or Deltadust.

Demon WP applied to the outside of the wood will provide some repellency and will also need to be reapplied every few weeks until the problem subsides.

Other good products are OnSlaught Fastcap, and Essentria IC3 for really good repellency… See full answer »
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Demon WP Active Ingredients: Cypermethrin............................40.0%

Demon WP Active EPA Reg. No: 100-1000

Demon WP Size: 4 water soluble pouches 12/box
Demon WP Insecticide Class: Pyrethroid
Demon WP Category: Insecticides / Concentrates
Demon WP Manufacturer: Syngenta Professional Products
4.9
Out of 5.0
A graph showing this site's review totals.
Overall Rating
96%
of customers that
buy this product give
it a 4 or 5-Star rating.
Verified Buyer
“Great deal”
May 13, 2025 by Rick L. (United States)
“Works great to rid the house of ants and spiders!”
Verified Buyer
“Great ”
April 29, 2025 by Thomas (TN, United States)
“Yes I received my package like always top quality”
Verified Buyer
“Great buy”
September 6, 2024 by Patrick R. (United States)
“Really the best for insect control.”

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