Cyper WSP

$8.93 - $318.90

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Not for Sale to: AK, NY
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5 out of 5 stars Rating: 4.9

37 Reviews | 25 Q&A


{ $8.93 { $7.73 $66.24 $59.51 $91.44 $88.96 $318.90
  Size/Description Price/Ea. Qty
Cyper WSP envelope (4 x 9.5 g packs)

Buy 1: $8.93 each

Buy 2 or more: $7.73 each

Cyper WSP 1 lb. Pail pail (1 lb) (49 x 9.5 g packs)

Buy 1: $66.24 each

Buy 2 or more: $59.51 each

Cyper WSP BOX (12 envelopes) box (12 envelopes)

Buy 1: $91.44 each

Buy 2 or more: $88.96 each

Cyper WSP CASE (6 x 1 lb. pails)Cyper WSP CASE (6 x 1 lb. pails) case (6 x 1 lb pails)

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Cyper WSP
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Cyper WSP is an economical pyrethroid that provides fast knockdown and residual control of more than 30 different pests. Control ants, spiders, cockroaches, and other insects using 40% Cypermethrin contained in 4 water soluble packets (WSP) per envelope. Cyper WSP is comparable to Demon WP.

Available in envelopes containing 4 x 9.5 gram WSP and a box containing 12 envelopes with a total of 48 WSP.

Also available in a 1 lb pail.


Cyper WSP may be used as a crack-and-crevice and/or spot treatment for indoor surfaces - 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.


Apply to any trails, around doors and windows and similar areas where ants (including carpenter ants) may be found. Where ants are trailing inside, apply as a residual surface treatment to active areas such as baseboards, corners around pipes, in and behind cabinets, behind and under refrigerators, sinks, furnaces and stoves, cracks and crevices. When combining baits and residual surface insecticides, apply surface insecticides in cracks and crevices, along baseboards, and infested surfaces and outside barrier treatments. Apply perimeter barrier treatments and treat nest to prevent infestation as described below in 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 they may enter premises. Treat baseboards, storage areas and other locations. Apply barrier treatments to prevent infestation as described in Outdoor Surface Use.


Apply with either hand-held or power application equipment 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 for applications to lawns in landscaped areas in and around residential, commercial, institutional and industrial buildings, and similar areas where these insect pests are active.

Note: The maximum application rate to lawns and other turfgrass is 0.44 lb. ai/A (0.0101 lb. ai/1,000 sq. ft.).

Carpenter Ants

Apply as a coarse wet spray treatment, but avoid runoff around door frames, windows and similar areas where these ants enter premises or hide.

Fire Ants (Mounds)

For individual fire ant mounds, apply Cyper WSP as a drench. Gently sprinkle (watering can) a total of one gallon over the surface of mounds up to 12 inches in diameter. Use 2 gallons 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.

Bees, Flies, Mosquitoes and Wasps

Apply directly to walls, window screens, and other exterior resting areas as a residual surface treatment. Use caution when treating nests of stinging insects as Cyper WSP does not provide instant knockdown. Protective equipment for the applicator may be required. For best results, treat bee, wasp and hornet nests late in the day when most insects will be present. Allow 2-3 days for the colony to die.

For mosquito control, apply as a general structural perimeter spray to landscape plantings, turf and building foundations to control mosquitoes. Yards or other frequented areas enclosed by landscaping can benefit from the creation of a mosquito barrier to reduce invading mosquitoes by the treatment of perimeter vegetation. For best results, apply Cyper WSP at recommended rates in 2-5 gallons of water per 1,000 sq. ft. Higher volumes applied result in better coverage and will improve control. Application to vegetation away from the structures may require additional applicator certification, e.g. in turf and ornamental categories. Consult your state regulatory agency for requirements.

Fleas and Ticks

To control nuisance fleas and ticks (e.g. dog ticks) apply to yards, runs and other outside areas where pets may frequent. To control ticks, apply using a coarse fan spray to vegetation, brush, branches, rock walls, and other areas near habitation where ticks may harbor or frequent. Treat entire area rather than making spot treatments, and retreat as necessary to maintain control. Do not apply to pasture or cropland, and do not allow animals and people access to treated areas until the sprays have dried. Applications can begin in the spring and can continue until frost to control both larvae and adult ticks.

Cluster Flies

Make exterior treatments in late summer or early fall before flies are observed alighting on surfaces. Apply thoroughly on siding, under eaves, and around windows and doors paying particular attention to south-facing surfaces. Apply just enough dilution to adequately cover the area without excessive dripping or runoff. Heavy precipitation prior to frost may require retreatment to maintain protection.


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.

Sod Webworms

Apply as a spot treatment when pests first appear (do not apply as a broadcast spray); retreat when needed. Delay watering or mowing the treated area for 12-24 hrs. after treatment. Use 5 gallons of solution per 800-1,600 sq. ft. when making application.


Applying a continual band of insecticide around building foundation and around windows, doors, service lines, entrances, eaves, vents, and other areas can greatly reduce the potential for entry by crawling pests. To facilitate application, remove debris and leaf litter from next to the foundation, trim vegetation and branches that touch the foundation and move or rake back rocks, deep mulch or other potential pest harborage next to the foundation. To help prevent infestation of buildings, apply as a band to soil and vegetation 6-10 ft. wide around and adjacent to the building. Also, treat the building foundation to a height of 2-3 ft. where pests are active and may find entrance. Apply as a coarse spray treatment to thoroughly and uniformly wet the foundation and/or band area, using 1-5 gals. of treatment solution applied to 800-1600 sq. ft.

WARNING: This product can expose you to chemicals including crystalline silica which is know to the State of California to cause cancer. For more information go to

Rating Snapshot

5 stars   34
4 stars   2
3 stars   1
2 stars   0
1 star   0

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Average Customer Rating
5 out of 5 stars (37)

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Most Helpful Customer Reviews
  • 38 of 40 people found this review helpful:

    5 of 5 stars  Cyper Effectivenss
    By Lauren in Dayton, Tennessee on 02/05/2015

    Extremely potent material. Ingredients (1 Package) when mixed with 1 Gal of water are lethal to insects. This is a broad range insecticide and can be used indoors or outdoors effectively. Caution to users: Wear vinyl or rubber gloves when preparing the solution. The ingredients are in a fine powder form. Wear a filter mask to prevent breathing the dust. Do not allow powder to get on the skin and if you do, wash immediately to avoided absorption into the tissue. If any powder gets on the surface of a counter, clean it off and do not use it around food areas. IT IS EFFECTIVE for the purpose intended.

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  • 26 of 26 people found this review helpful:

    5 of 5 stars  Long lasting!
    By David in Florence, SC on 08/28/2014

    I used this as a perimeter around my home and it works superb. Sprayed ants trailing up a tree over my home, sprayed walked away 15ft and came back the trail was dead.. 2 1/2 month residual.. Also a good residual for spiders and wasps nesting areas.

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  • 26 of 26 people found this review helpful:

    5 of 5 stars  This stuff works!!!
    By James in Liberty Hill, Tx. on 10/02/2015

    From what I'm reading in the active ingredients this product replaced the Cyper WP. I use it primarily outdoors and it basically kills any and all insects it comes in contact with. Trust me on this one. I'm a certified buyer in Liberty Hill TX. I found the pail size to be the most economic and split it with my neighbor. It comes in individual packets that mixes with one gallon of water.

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  • 25 of 25 people found this review helpful:

    5 of 5 stars  wood borers
    By Kenneth in ocean isle beach n.c. on 04/27/2015

    one treatment and there were dead borers all over the ground. This is great stuff !!!

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  • 16 of 16 people found this review helpful:

    5 of 5 stars  Super product
    By Ward in Blue Ridge Mountains, VA on 09/30/2015

    Kills just about every type of insect. Lasts 3 months sprayed under eaves and other places rain cannot wash off residue. I think it works up to 6 months indoors in garages and barns to keep spiders away. VERY EFFECTIVE killing Stink Bugs trying to get in during the fall (before winter). Spray does not kill wasps and carpenter bees but irritates them enough to keep them from building a nest. I've been using this product for years around my home, in the garage and out-buildings. Very effective!

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Most Recent Customer Reviews
  • 4 of 5 stars  Kills well
    By Larry in Grand Saline, TX on 08/03/2018

    Product works quickly. No bugs noticed since spraying. Seems to work as well as more expensive similar product. Only gave 4 srars because it hasn't been on premises long enough to measure long term action.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Excellent product
    By Arthur in BEAVER on 06/17/2018

    Seems to work like a charm. Took care of the carpenter bees and they are staying away. Also used it to discourage waspers and mud daubers.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Very good insect control
    By Kevi in Florida on 05/04/2018

    Used for insect control on our home in Florida. Has great residual properties

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Great product
    By David in Milton, Fl. on 11/24/2017

    Cyper WSP works great! Domyown has terrific prices. I saved a lot of money and got a product that works very well. Thank you.

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  • 3 of 3 people found this review helpful:

    5 of 5 stars  This product does a great job on crickets
    By Rhonda in Georgetown, TX on 11/09/2017

    Last year we used a 1 lb pail of Cyper WSP packets to spray our mini storage facility for crickets. Curbs at each door & a wide berth of asphalt, an acres worth. It worked great, but it turned out that we sprayed about 2 weeks before the end of their life cycle, so we couldn't be sure how much Cyber WSP eliminated these pests. This year we sprayed between October 5-14th, when we had seen just a few crickets. For almost a month now we have not seen even one cricket. I think only 1 review mentioned crickets, so we feel it's important to let y'all know it has worked fantastically for 2 years straight.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Cyper WSP
    By Diane in DALLAS on 11/03/2017

    I love this product. Using it as perimeter pest control, it limits almost all bugs. If only it killed lizards it would be perfect!

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Cyber WSP
    By Tom in Hearne, TX on 07/21/2017

    Great product, comparable to Demon. Great service, fast delivery !

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  Cyper WSP
    By Jerry in FORNEY, Texas on 07/16/2017

    I have already been using the product for several years now, and I have been very pleased with it. I like that it has little or no odor, and it remains effective for a long time after application. I'm not too fond of the water soluble packets, but it's okay as long as you rinse out your sprayer when it gets empty (don't leave even a small amount in it).

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  • 1 of 1 people found this review helpful:

    4 of 5 stars  Good Stuff
    By Joe in Redding CA on 07/13/2017

    I used the Demon before, and this CyperWSP works just as good..keeps our house bug,spider & spider webs free for at least 2 to 3 month long.. Easy to use and does not smell toxic...Loveit..Thanks..

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  • 5 of 5 stars  It just works!
    By David in Las Vegas, NV on 07/07/2017

    I am using Cyper WP/Cyper WSP for 3 years. I live in Las Vegas, NV. I do not have any bugs, spiders, or scorpions. It just works! I just wish it was Cyper WP available since it was cheaper than Cyper WSP.

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Most Helpful Q&A's

11/04/2015 Tom

QHow long does Cyper WSP last after spraying, and does it treat for cockroaches?


Cyper WSP is targeted to treat for cockroaches to be used indoors and outdoors mixing at 1-2 packets per gallons of water that will leave a residual for up to 3 months after applying. Please see our Roach Pest Guide for more tips and important information about how to Identify, Inspect, Treat, and Prevent Roach infestations.

12 of 12 people found this answer helpful.
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09/16/2015 Jb from Oxford, Fl

QDoes Cyper WSP leave a residual stain or discoloration on surface it is sprayed on?


Cyper WSP does leave a white residual that is noticeable on darker surfaces.

6 of 7 people found this answer helpful.
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06/02/2015 Glynn from Kingsland Texas

QIs Cyper WSP effective on scorpions?

A Cyper WSP  will do a great job for your scorpions. Be sure to retreat once a month.

6 of 7 people found this answer helpful.
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03/30/2015 Olsen from Many Farms, Az

QHow to get rid of lizards?


There are no toxic products labeled for lizards, geckos 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 is because they can find food and harborage. 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 lizards 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 lizards. Spray a good residual insecticide such asCyper WSP around the outside of your home to help cut down on the number of insects the lizards are eating. If lizards 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 lizards like to hide. Rake back mulch or rocks at least 6 inches from the structure


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

5 of 5 people found this answer helpful.
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05/12/2016 Peyton from Argyle, Tx

QIs Cyper WSP safe to use around pets?


Yes, Cyper WSP is safe to use around pets if used as directed.  Pets and people need to be kept out of the area during application but can safely return once everything has dried.

3 of 3 people found this answer helpful.
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Most Recent Customer Questions

08/02/2018 Linda from Newport, Wa

QHow well does the Cyper WSP work for controlling yellow jackets?
I have a considerable yellow jacket problem this year and haven't located the nests.


Unfortunately, the Cyper WSP is not labeled to treat for yellow jackets. Please check out our article "How to Get Rid of Yellow Jackets". If you can get to the openings where the yellow jackets are coming in and out from, we highly recommend applying a dust like Tempo 1% Dust and when the yellow jacket comes in contact with it, the dust will transfer from yellow jacket to yellow jacket and kill off the entire nest.  We also have the Tempo SC Ultra that will dry clear, can be applied in a wall void, cracks, and crevices outside the home. 

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07/15/2018 Todd from Hamilton

QCan Cyper WSP be used as a perimeter spray for spiders?


Yes, Cyper WSP can be used for spiders. 

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06/15/2018 Christopher from Fort Stockton

QCan Cyper WSP kill bed bugs?


Cyper WSP is not labeled for bedbugs. Please check out our Bedbug Kits and take a few moments to review our article on How to Get Rid of Bedbugs to learn how to implement a successful bedbug control program.

0 of 1 people found this answer helpful.
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05/27/2018 Rafael from Hialeah, Fl

QIs Cyper WSP used to kill German roaches?


Yes, Cyper WSP can be used for German roaches.  Please take a look at our Roach Control Guide for more information on how to implement a complete roach treatment program.  

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04/18/2018 Michael from Bradenton, Fl

QDoes Cyper WSP have transfer properties?


Cyper WSP does not have a transfer effect and will only kill those insects that contact a treated area or are sprayed directly.

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12/27/2017 Russell from Sw Fl

QIs Cyper WSP an organic insecticide?


Cyper WSP is not an organic insecticide. We do offer natural/organic products.

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09/25/2017 Rob from Phoenix, Az

QDoes Cyper WSP contain any acetic acid? What pesticide formulations do contain acetic acid?


Cyper WSP does not contain acetic acid. We do offer On Deck Herbicide and Bonide Poison Ivy and Brush Killer BK-32 Concentrate that contain acetic acid.

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09/24/2017 Anthony from Rbs, Tn

QDo the Cyper WSP dissolve in water?


Yes, the Cyper WSP are water soluble. You will place 1-2 packets in a gallon of water. 

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07/27/2017 William from Antioch

QWill Cyper WSP work on ground digger wasps? (Cicada killers)


Cyper WSP is labeled for wasps, however, this product will wash away if applied directly to the soil. Another option would be Talstar P. The mixing rate is 1 fl oz per gallon of water and can be applied directly to the holes. Be sure to apply the product when the wasps are not active. 

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07/13/2017 Pam from Stillwater, Mn

QWill Cyper WSP kill and prevent wolf spiders?


Yes, Cyper WSP will work for wolf spiders. It is recommended to use 1-2 packets per gallon of water.

1 of 2 people found this answer helpful.
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