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Cyper WSP Insecticide
Cyper WSP Insecticide is a cypermethrin water-soluble powder insecticide that comes in convenient packets. It controls over 30 insects with a quick knockdown and provides a powerful residual barrier.
09/14/25
Cyper WSP Insecticide, manufactured by Control Solutions Inc., is a water-soluble powder synthetic pyrethroid insecticide designed to control over 30 insects.
It is made with the powerful active ingredient Cypermethrin, which comes in packets that dissolve in water. The pre-measured Cyper WSP Insecticide packets make the mixing process quick and easy without the mess. The pre-measured packets are dropped into a spray tank and dissolved to make an insecticide spray.
Cyper WSP works on contact and is safe to use indoors as a spot, crack, and crevice spray and outdoors as a spot and surface spray to control spiders, ants, aphids, chinch bugs, mosquitoes, and more.
Tools Needed
A backpack sprayer, handheld pump sprayer, or skid sprayer is needed to apply this product.
We suggest using a handheld pump sprayer when making spot treatments or applying this product to cracks and crevices.
How to Use
- Step 1: Determine how much Cyper WSP you will need by measuring the square footage of the treatment area. To do this, you will need to measure the treatment areas' length and width in feet, then multiply them together (length X width = square footage.) 1 packet of Cyper WSP can treat between 800 to 1,600 sq. ft. when mixed between 1 to 5 gallons of water. So, for example, if you measured 1,500 sq. ft. to treat, you would need one packet in at least 1 gallon of water.
- Step 2: Fill the spray tank halfway with half a gallon of water for general applications made with a handheld pump sprayer. The targeted insect will determine the number of packets to use; for most insects, drop 1 water soluble packet into the spray tank and wait a few minutes for the packet to dissolve. Shake the spray tank to mix well, then add the other half gallon of water and shake the spray tank. You are now ready to spray.
- Step 3: Apply Cyper WSP to cracks and crevices indoors and outdoors. Once the product dries, the powder remains on the surface as a residue. Periodically shake the spray tank while making applications. Reapply every 60 days for total control of listed insects.
Where to Use
Cyper WSP Insecticide is ideal for indoor and outdoor use in residential, commercial, and industrial areas.
For indoor use, apply it as a cracks and crevice treatment or as a spot treatment around baseboards, window sills, door frames, under cabinets, sinks, appliances, and corners.
For outdoor use, this product can be applied to exterior walls, porches, under crawl spaces, lawns, turf, and in the cracks and crevices around windows, doors, eves of roofs, and soffits.
When to Use
Cyper WSP Insecticide can be used as a preventative treatment to keep targeted insects from coming indoors, as it creates a powerful residual barrier. It also provides an efficient knockdown and can be applied after the insect activity listed on the label is noticed. This is ideal in the springtime when pest activity is highest or around the fall when temperatures start to drop, and pests look to go indoors for warmth. Apply on calm days when rain is not in the immediate forecast.
Safety Information
Cyper WSP is safe for children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Do not allow people or pets to enter the treated areas until dry.
Special Considerations
Use Cyper WSP Insecticide as a crack and crevice or spot treatment only when applied to indoor areas. One envelope contains four 0.33 oz. water-soluble packets, and a one-pound bucket contains 48 packets.
Availability | In Stores, Online |
Restricted Use | No |
Shipping Restrictions | 4 x 0.3 oz. Packets: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA 1 Pound: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
Brand | CSI |
Keith's Pro Tips | "Cyper's soluble packets will begin dissolving immediately once contact is made with water. Ensure that your gloves or any surface the soluble packets might come into contact with are dry to prevent premature dissolving." |
Product Drawbacks | Cyper WSP Insecticide needs to be agitated regularly during application so the product doesn't settle and clog spray components. Cyper WSP also leaves a residue where applied. |
Target Pests | Ant, Ants, Aphids, Assassin, Bees, Beetles, Boxelder, Bugs, California, Carpenter, Cenipedes, Chiggers, Cockroaches, Crickets, Earwigs, Elm, Fire, Firebrats, Fleas, Flies, Leaf, Millipedes, Mites, Mosquitoes, Oakworm, Pillbugs, Scorpions, Silverfish, Sod, Sowbugs, Spiders, Termites, Ticks, Wasps, Webworms, Cluster Flies and more. |
Application Equipment | Backpack Sprayer, Gloves, Pump Sprayer, Spray Rig |
Application Methods | Broadcast Spray, Crack & Crevice, Spot Treatment |
Active Ingredient | Cypermethrin 40% |
Product Type | Insecticide |
Formulation | Water-Soluble Powder |
Application Rate | Depending on the target pest mix 1 to 2 Cyper WSP Insecticide packets with 1 gallon of water. For more specific application rates please refer to the label. |
Shelf Life | Store Cyper WSP Insecticide in the original foil packaging and keep in a cool, dry storage area. Do not open the water soluble package. |
Yield | For perimeter treatment, 1 to 2 water soluble packets of Cyper WSP will make 1 to 5 gallons of spray and will treat up to 1,600 square feet. For outdoor general surface spray treatments, 1 water soluble packet of Cyper WSP will make 1 gallon of spray and will treat up to 1,000 square feet. |
Use Sites | Indoors, Outdoors |
Time to Kill | Cyper WSP will begin killing targeted insects with 24 to 48 hours after the initial application. The residual effects will last for up to 2 to 3 months. |
Comparable Products | Demon WP |
Incompatible Home Siding | Metal |
EPA Registration # | 53883-340 |
Restricted Use | No |
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Shipping Restrictions | AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
Availability | In Stores, Online |
Signal Word | WARNING |
Keith's Pro Tip | "Cyper's soluble packets will begin dissolving immediately once contact is made with water. Ensure that your gloves or any surface the soluble packets might come into contact with are dry to prevent premature dissolving." |
Target Pests Multi | Ants, Aphids, Assassin Bugs, Bees, Boxelder Bugs, California Oakworms, Carpenter Ants, Carpenter Bees, Centipedes, Chiggers/Red Bugs, Cluster Flies, Cockroaches, Crickets, Dog Ticks, Drywood Termites, Earwigs, Elm Leaf Beetles, Fire Ant Mounds, Firebrats, Fleas, Flies, Millipedes, Mites, Mosquitoes, Pillbugs, Scorpions, Silverfish, Sod Webworms, Sowbugs, Spiders, Termites, Ticks, Wasps |
Time to Kill | Cyper WSP will begin killing targeted insects with 24 to 48 hours after the initial application. The residual effects will last for up to 2 to 3 months. |
Chemical Type | Insecticide |
Formulation | Water-Soluble Powder |
Application Methods | Broadcast Spray, Crack & Crevice, Spot Treatment |
Product Drawbacks | Cyper WSP Insecticide needs to be agitated regularly during application so the product doesn't settle and clog spray components. Cyper WSP also leaves a residue where applied. |
Active Ingredient | Cypermethrin 40% |
Application Equipment | Backpack Sprayer, Gloves, Pump Sprayer, Spray Rig |
Mix Rate | Depending on the target pest mix 1 to 2 Cyper WSP Insecticide packets with 1 gallon of water. For more specific application rates please refer to the label. |
Use Sites | Indoors, Outdoors |
Yield | For perimeter treatment, 1 to 2 water soluble packets of Cyper WSP will make 1 to 5 gallons of spray and will treat up to 1,600 square feet. For outdoor general surface spray treatments, 1 water soluble packet of Cyper WSP will make 1 gallon of spray and will treat up to 1,000 square feet. |
EPA Registration No. | 53883-340 |
Shelf Life | Store Cyper WSP Insecticide in the original foil packaging and keep in a cool, dry storage area. Do not open the water soluble package. |
Comparable Products | Demon WP |
Children or pets? | No |
Property Characteristics | Food-Bearing Plants |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.