Cyper WP

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Average Rating

4.5 out of 5 stars Rating: 4.7

264 Reviews | 107 Q&A

Product Overview

Get the powerful active ingredient cypermethrin for effective long-term residual control of many of the most common insect pests including ants, roaches, crickets, spiders, scorpions, silverfish and more. Cyper WP controls pests for up to 3 months after being sprayed. Each Cyper WP tub contains 1 lb. of loose powder that is mixed with water to create 24-48 gallons of finished solution. A scooper is included for measuring.

Product Documents

Features and Specs

Active Ingredient Cypermethrin 40.0%
Application Cyper WP leaves a powdery film that is especially noticeable on dark surfaces.
Yield 1 tub yields 24-48 gallons. 1 gallon of finished solution is usually sufficient to treat a 2,000 sq. ft. home.
Shipping Weight 1.27 lbs
Manufacturer Control Solutions
UPC 072693100510
EPA Registration 53883-29


How Cyper WP Insecticide Works

Cyper WP is a residual insecticide concentrate with the active ingredient Cypermethrin. Cypermethrin is in the synthetic pyrethroid class of insecticides. It is a man-made active ingredient that attacks the central nervous system of insects that come in contact with or ingest it. Cyper WP is diluted with water and applied with a gallon pump sprayer. After it dries, Cyper WP continues to work for up to 3 months.

Cyper WP Target Pests

A variety of crawling and flying pests including (but not limited to) ants, carpenter ants, cockroaches, crickets, scorpions, and spiders

PESTS CONTROLLED WITH CYPER WP: Ants, Bees, Boxelder Bugs, Carpenter Ants, Carpenter Bees, Centipedes, Chiggers, Cockroaches, Crickets, Earwigs, Elm Leaf Beetles, Fire Ants (mounds), Firebrats, Fleas, Flies, Millipedes, Mites, Mosquitoes, Pillbugs, Scorpions, Silverfish, Sod Webworms, Sowbugs, Spiders, Ticks,  Termites (above ground only)

Target Uses of Cyper WP

Cyper WP (same as Demon WP and Cynoff WP) insecticide is a loose white powder that is mixed with water. It can be applied as a crack and crevice and/or spot treatment for residual and contact control of ants, bees, biting flies, boxelder bugs, centipedes, cockroaches, crickets, earwigs, elm leaf beetles, firebrats, fleas, flies, millipedes, mosquitoes, pillbugs, silverfish, sowbugs, spiders, ticks, and wasps.

Cyper WP has a residual of up to 3 months. 1 x 1lb. container of Cyper WP yields up to 48 gallons of finished product.

Cyper WP (Wettable Powder) is excellent for larger, tougher pests such as cockroaches, spiders, scorpions, or stink bugs because there is a high concentration of active ingredient. The wettable powder formulation also makes Cyper WP ideal for porous surfaces such as concrete since the individual particles of active ingredient are larger and can more easily stay on top of the surface.

*Cyper WP leaves a white powdery film that may be visible on darker surfaces. For applications where this is a concern, consider using a liquid concentrate instead.

ACTIVE INGREDIENT: Cypermethrin 40.0%

Cyper WP Application Instructions


Cyper WP is best applied with a 1 gallon sprayer. Apply to outside foundation and all entry points such as around windows, doors, cracks and crevices, etc. Cyper WP is very toxic to fish. Do not apply near bodies of water or where there may be water run-off. Always read the label completely before use.

Fill applicator tank with the desired volume of water and add Surrender brand Cyper WP Insecticide. Close and agitate before use in order to ensure proper use suspension of the wettable powder. Shake and reagitate application equipment before use if application is interrupted. Make up only amount of treatment volume as required. Do not store dilution in application equipment overnight.

Cyper WP will continue to work for 90 days indoors and 30 days outdoors. We recommend waiting at least 7 days between applications.

Each 1 pound jar of Cyper WP makes 24-48 gallons of finished solution.

Standard Application Dilution rates / Mixing Ratios for CYPER WP:

*1 scoop (0.33 oz.)/gal. of water – 0.1% – maintenance, more frequent applications, foliar applications

* 2 scoops (0.66 oz.)/gal. of water – 0.2% -- clean-out, severe infestations, exterior applications which receive greater direct sunlight, scorpions

*For Perimeter Barrier Applications around Structures – Mix 1-2 scoops of Cyper WP in 1-5 gallons of water to cover 800-1600 square feet. Higher volumes may be needed for dense vegetation or landscaping materials.

*1 scoop is the equivalent of 0.33 oz., 9.5 gm., or 2 level tablespoons

Cyper WP is for use in the following areas:

For crack and crevice or spot treatment for residual and contact pest control in, on, or 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, and 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 service establishments.

Authorized by the USDA for use in inedible product areas in Federally inspected meat, poultry, and egg processing plants.


Use 1-2 scoops of Cyper WP per gallon of water. See above for mixing instructions.

General Instructions:

Cockroaches, Crickets, Firebrats, Silverfish, Spiders, and Ticks: Apply as a coarse, low pressure spray to areas where these pests hide, such as baseboards, corners, storage areas, closets, around water pipes, doors and windows, attics and eaves, behind and under refrigerators, cabinets, sinks, furnaces, and stoves, the underside of shelves, drawers and similar areas. Pay particular attention to cracks and crevices; also see OUTDOOR USE.

Ants: Apply to any trails, around doors and windows, and other places where ants may be found. Refer to BARRIER TREATMENT directions to prevent infestation; also see OUTDOOR USE.

Bees and Wasps: Application to nests should be made late in the evening when insects are at rest. Thoroughly spray nest and entrance and surrounding areas where insects alight; also see OUTDOOR USE.

Boxelder Bugs, Centipedes, Earwigs, Elm Leaf Beetles, Millipedes, Pillbugs, and Sowbugs: Apply around doors and windows and other places where these pests may be found or where they may enter premises. Spray baseboards, storage areas and other locations. Refer to BARRIER TREATMENT directions to prevent infestation; also see OUTDOOR USE.


Use 1-2 scoops of Cyper WP in 1-5 gallons of water per 800-1,600 square feet. See above for mixing instructions.

For control of ants, bees, biting flies, boxelder bugs, centipedes, cockroaches, crickets, earwigs, elm leaf beetles, firebrats, fleas, flies, millipedes, mosquitoes, pillbugs, silverfish, sowbugs, spiders, ticks, and wasps. Apply as a residual spray either by hand or power sprayer to surfaces of buildings, porches, screens, window frames, eaves, patios, residential lawns only such grass areas adjacent or around private homes, duplexes, townhouses, condominiums, house trailers, apartment complexes, carports, garages, fence lines, storage sheds, barns, and other residential and non-commercial structures, refuse dumps, garages and other areas where pests are found.

Barrier Treatments: To help prevent infestation of buildings, apply to a band of soil and vegetation 6 to 10 feet wide around and adjacent to the building. Also, treat the building foundation to a height of 2 to 3 feet where pests are active and may find entrance. Apply as a coarse spray to thoroughly and uniformly wet the band area, using 1 gallon of spray mix per 400 square feet.

Fire Ants (Mounds) - For individual fire ant mounds, apply Surrender brand Cyper WP Insecticide as a drench. Gently sprinkle (watering can) a total of one gallon over the surface of mounds up to 12 inches in diameter and two gals. for larger mounds. Thoroughly wet mound and surrounding area. Treat new mounds as they appear. Pressurized sprays may disturb the ants and cause migration. If possible, applications should be made on warm days after recent rainfall. All colonies in the vicinity should be treated, including those that have not yet constructed a mound.

Scorpions - Treat and remove accumulations of lumber, firewood and other materials which serve as harborage sites. Apply a coarse spray treatment to the point of drip.

Cyper WP Insecticide Features

  • 1 lb. jar comes with convenient scoop for quick and easy measuring.
  • 1 lb. jar is very economical.
  • Pet safe after dry, when used as directed
  • Wettable powder formulation is excellent for porous surfaces, such as concrete.

Extra Tips for Using Cyper WP

  • Some settling may occur after tank mixing Cyper WP. Be sure to agitate the tank after resting, and only mix the amount of product you intend to use within 24 hours.
  • Store concentrate out of direct sunlight and extreme temperatures for maximum shelf life of 3+ years.
  • Not labeled for use on edible plants
  • Exposure to direct sunlight will break down residual more quickly, so applications may need to be made more frequently in these areas.
  • Cyper WP is not suitable as a space spray with equipment such as misters, foggers, or aerosol equipment. The product will clog or damage the equipment and is not labeled for this use.

Compare to: Demon WP, Cynoff WP

WARNING: This product can expose you to chemicals including crystalline silica which is known to the State of California to cause cancer. 

Review Search   
Sort Reviews
  • 4 of 5 Stars

    Very effective

    By Pam on 04/02/2009

    I've used Cyper WP in my home in northern KY. It was very effective and me and my neighbors on both sides of my house used this product at the same time. It works better when you can treat inside and outside of your home. It's a lot cheaper than an exterminator. I repeat treatment about every 3 months to prevent the bugs from coming back. Thank you very much, I can now sleep at night without worrying.

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    40 of 42 people found this review helpful

  • 5 of 5 Stars

    Cyper WP Works Great

    By Jim on 06/06/2010

    Verified Purchase

    Our Ranch house was infested with scorpions. We were advised Cyper WP would do the trick. We literally counted about 40 dead ones after the application and have seen only one or two that were acting very sickly. This stuff works. It actually has killed everything that crawls or flies when that pest comes in contact with it. I will be ordering more in quantity for friends and family. Thank You for having a bulk discount.

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    33 of 35 people found this review helpful

  • 5 of 5 Stars

    The best I ever used

    By George on 08/03/2006

    Starting in 2005 I noticed late evening every night on my patio carpet several black bugs and identified them as Oriental cockroaches. In March of 2006, it became terrible. A friend looked on his computer and found that Niban bait was recommended. He gave me your number. My first conversation was with Michael and he recommended Cyper WP with the Niban. He told me to remember that Niban was a bait and not to use the Cyper WP near the Niban. I used a 3 gallon watering can with 4 scoops of Cyper WP, mixed good, to eliminate the nest which was in a long crack in our side walk, adjacent to our patio. I soaked the entire patio carpet, and the entire perimeter of our house. I put the Niban bait, sparingly, not closer than 25' to our sun room and patio. This type of cockroach loves water. I removed my landscaping bark which was always wet from watering flowers. I have since ordered 4 Cyper WP. It has been a good month and a half with NO black water cockroaches in our sun room. Once in a while I will find one on our patio carpet, on his back dead. The Cyper WP in also good for killing ants. The best I ever used. I have 1/2 acre of land so sometimes its a struggle. Thank you for all of your help.

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    30 of 33 people found this review helpful

  • 5 of 5 Stars

    Cyper WP

    By Sean on 07/30/2010

    Verified Purchase

    Does exactly what it said it would do. I had a very bad spider (Brown Recluse and Wolf) problem inside and outside the house, within a day I saw no more living spiders in my house, period. Word of caution, pay attention to what it says about if you have dark floors. I do have dark floors and it leaves a very noticeable white residue. They have others for inside the house that are clear, i just didn't read thoroughly. Great Product.

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    24 of 25 people found this review helpful

  • 5 of 5 Stars

    Cyper WP Review

    By Jim on 07/17/2010

    Verified Purchase

    Seems to be doing the job on black widows and scorpions. Strangely, more scorpions were seen indoors after first application but they were asking to be taken to the ER. Leaves a slight residue, which is the whole idea with the powder, but it's not objectionable and can be wiped/washed off if need be.

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    22 of 23 people found this review helpful

See all 264 customer reviews

Questions & Answers

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Sort Questions
How to kill or control gecko lizards?

Have problem with geckos in garage and attic.


There are no toxic products labeled for geckos, lizards or any reptiles or amphibians, and given the highly beneficial nature of these creatures there is not likely to be any products for them any time soon.The reason they are on your property are because they can find food and proper habitat. Take away their food and they will forage somewhere else. Take away the conditions they need for hiding and they will seek refuge someplace else.

You really have two options here:

1.Exclusion. Total exclusion can be hard to achieve particularly around the roof-line where there are going to be gaps that would be very hard to close off, but there also could be some obvious flaws such as broken vent screens, holes around cables, pipes or wires, or gaps under doors. All of these can easily be closed with brush strips, caulking, copper mesh (Stuf-Fit), or some other suitable material. Exclusion is the best choice, because it is permanent, and eliminates or reduces the problem in the future too.

2.Outdoor habitat modification. In short, get rid of the reasons geckos are there in the first place. They are there because they are finding the food they need to survive (insects) and a place to harbor. If you can eliminate either of these essentials, you can get rid of the geckos. Spray a good residual insecticide such as Cyper WP around the outside of your home to help cut down on the number of insects the geckos are eating. If geckos cannot find enough food they will either move on or starve. Eliminate as much clutter and debris around the outside of your home as possible to eliminate the places geckos like to hide. Rake back mulch or rocks at least 6 inches from the structure.


If you need to get rid of the geckos that are already indoors the only options are catching them by hand or using glue boards placed in areas where the geckos travel.

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174 of 259 people found this answer helpful

Can you please explain the difference between Demon WP and Cyper WP?
There is no difference between Cyper WP and Demon WP other than the fact that Cyper WP is half the price for the same size as Demon WP.  They both contain the same active ingredient and perform the same.  Demon WP is the name brand, the first one made, by Syngenta.  Cyper WP is a generic version made by a different company called Control Solutions.  Just like there are about 10 different brands of aspirin at the grocery store that all do the same thing, pest control products are the same way and there can be multiple manufacturers that essentially make the same product.

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147 of 151 people found this answer helpful

How many scoops of Cyper WP should be mixed per gallon of water?

Hi. This is my first time using Cyper WP and I have the one pound container. It came with a scooper, but the package does not state anywhere on how much to use. I am guessing that it is one scoop per gallon. But I do NOT want to guess, so that is why I am asking you how many scoops per gallon?


Each jar of Cyper WP comes with a full product label attached to the the jar. If you take a close look, you will see that you can peel off the label and there is a direction booklet attached. Cyper WP does come with a scooper and you do use one or two level scoops per gallon. Most of the common pests require 1 scoop per gallon of water. If you are treating carpenter ants, carpenter bees, cockroaches, fire ants, scorpions, spiders, ticks or wasps, then you need to use 2 scoops per gallon of water.

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88 of 91 people found this answer helpful

Is Cyper WP safe to use on a lawn with pets and dogs?

I want to use Cyper WP due to having a lot of spiders at my house. We have found brown widows with their "spikey" eggs. We also have black widows and common house spiders. We have 2 dogs that stay outside and are known to lick, chew and dig in most places. Is it safe to apply Cyper WP in the backyard where the dogs are if I let it dry before putting the dogs back out?


Yes, Cyper WP is perfectly safe to apply around pets and/or children.  When you are applying the product you should do exactly as you suggest, which is keep the pets inside or if applying inside in another room until the product dries.  After it dries which is usually about 30 minutes, it is perfectly safe to allow pets entry back into the yard or living space.

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71 of 73 people found this answer helpful

I have spiders in and on my house. Which product is better for killing them, Cyper WP or Demon WP?
Cyper WP is the generic of Demon WP. Both products contain the same active ingredient in the same concentration. Cypermethrin, the active ingredient in both Cyper WP and Demon WP, is known to be one of the most effective active ingredients for spiders and other hard to kill insects. You might also want to check out our spider control kit, which comes with all the products you need to effectively control spiders.

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29 of 29 people found this answer helpful

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Cyper WP 4.5 out of 5 stars Rating: 4.7 (264 Reviews / 107 Q&A)

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