Cynoff WP

5 out of 5 stars 59 Reviews | 37 Q&A

Cynoff WP

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Average Rating

5 out of 5 stars Rating: 4.8

59 Reviews | 37 Q&A

Product Overview

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. Cynoff WP has a residual of up to 3 months.

Features and Specs

Active Ingredient: Cypermethrin 40%
Target pests: Ants, cockroaches, fleas, spiders, mosquitoes, and several other pests
For use in: Residential and commercial use. Not labeled for food area treatments.
Application: Indoor (crack and crevice only) and outdoor. Read label carefully. Cynoff WP leaves a powdery film that is especially noticeable on dark surfaces.
Pet safe: Yes, when dry
Yield: 24-48 gallons
NOT FOR SALE TO: NY, CT
Shipping Weight: 1.32 lbs
Manufacturer: FMC
EPA Registration: 279-3070

Details

How Cynoff WP Works

Cynoff 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. Cynoff WP is diluted with water and applied with a gallon pump sprayer. After it dries, Cynoff WP continues to work for up to 3 months.
 

Cynoff WP Target Pests

A variety of crawling and flying pests including (but not limited to) ants, boxelder bugs, cockroaches, crickets, earwigs, spiders, and wasps
 

PESTS CONTROLLED WITH Cynoff WP: ants, bees, biting flies, boxelder bugs, centipedes, cockroaches, crickets, earwigs, elm leaf beetles, firebrats, fleas, flies, millipedes, mosquitoes, pillbugs, silverfish, sowbugs, spiders, ticks, wasps
 

Target Uses of Cynoff WP

Cynoff WP (similar to Cyper 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 target pests. Cynoff WP has a residual of up to 3 months. 1x 1lb. container of Cynoff WP yields up to 48 gallons of finished product. NOTE: Cynoff WP is the exact same product as Demon WP, but less expensive.
 

Cynoff 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 Cynoff 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.
 

Cynoff 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%
 

Cynoff WP Application Instructions

Best applied with a 1 gallon sprayer. Apply to outside foundation and all entry points such as around windows, doors, cracks and crevices, etc. Cynoff 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 sprayer with one half of the desired volume of water, add Cynoff WP, and fill to desired volume. Close and shake before use in order to insure proper suspension of the wettable powder. Shake or re-agitate the sprayer before use if spraying is interrupted. Mix only the amount of solution needed for the application.

*Retreatment may be necessary to achieve and/or maintain control during periods of high pest pressure. Repeat application is necessary only if there are signs of renewed insect activity.

*Repeat application should be limited to no more than once per seven days.
 

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

Standard Application Dilution rates / Mixing Ratios for Cynoff 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 that receive more direct sunlight

*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
 

Cynoff WP is for use in the following areas:

Permitted areas of use include industrial buildings, houses, apartment buildings, laboratories, buses, greenhouses (noncommercial), and the nonfood/feed areas of stores, warehouses, vessels, railcars, trucks, trailers, aircraft (Do not use in aircraft cabins), schools, nursing homes, hospitals, restaurants, hotels, and food manufacturing, processing, and servicing establishments. Non-food/feed areas are areas such as garbage rooms, lavatories, floor drains (to sewers) entries and vestibules, offices, locker rooms, machine rooms, garages, mop closets, and storage (after canning or bottling).

Indoors-

Use 1-2 scoops per gallon of water and apply with a hand pump sprayer. Cynoff WP insecticide may be used as a general spot, crack and crevice treatment in non-food areas. All areas where insects hide or through which insects may enter should be treated.
 

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.
 

Outdoors-

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.
 

Cynoff WP Features

*1 lb. jar comes with convenient scoop for quick and easy measuring.

*1 lb. jar is very economical with low dilution rates.

*Same active ingredient as Demon WP for less

*Pet safe after dry, when used as directed

*Wettable powder formulation is excellent for porous surfaces, such as concrete.
 

Extra Tips for Using Cynoff WP

*Some settling may occur after tank mixing Cynoff 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.

*Cynoff 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, Cyper WP

5 stars   51
4 stars   6
3 stars   0
2 stars   1
1 star   1
  
  • 5 of 5 Stars

    The best stuff!

    By Chris on 02/19/2006

    I must agree , this is far better than calling a pest control company, and it works very well. Cynoff WP killed my roach problem and I have not seen any roaches in 5 months. I have seen plenty of dead ones that I can scoop up and throw away. If you have roaches or other bugs causing you problems this is THE BEST STUFF . It goes on wet and dries to a power that is hardly noticeable but the main thing is it is CHEAP and it will work, you will be happy. Don't call pest control until you try this first...it will save you lots of money.

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    28 of 28 people found this review helpful

  • 5 of 5 Stars

    Kill is almost instant!

    By D.j. on 03/20/2007

    I've used Cynoff WP as a drench for fire ants after opening the mound with rebar. I pour about a gallon down in the hole. The kill is almost instant! I also use it as an exterior spray every 3 months and it keeps out nearly all bugs! Thanks for making it available to the homeowner. I've recommended this product and your site to many friends and neighbors!

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    25 of 27 people found this review helpful

  • 5 of 5 Stars

    Warning does leave white residue.

    By R on 01/03/2008

    Cynoff WP works great for roaches inside and out. Warning, since it is powder based it leaves a milky white residue where sprayed. I will use something different for inside next time (liquid based and clear drying).

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    21 of 24 people found this review helpful

  • 5 of 5 Stars

    Worked great!

    By Toby on 10/03/2005

    Cluster flies and asian beetles. I used Cynoff last year and it worked just great. I used to have our house sprayed at a cost of over $225/year. Now I do the spraying myself and save a bundle.

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    15 of 17 people found this review helpful

  • 5 of 5 Stars

    This Stuff is Fantastic; Works Great!

    By Joyce on 05/26/2010

    Verified Purchase

    I was skeptical at first when my husband ordered because I never heard of the product (and thought was a little pricey) but it really works. We used it to eliminate wasps that build nests under our porches and siding, and were surprised to see the results. Spiders and other bugs were falling out, along with the wasps. We will definitely use this product again.

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    11 of 12 people found this review helpful

See all 59 customer reviews

Questions & Answers

Have a question about this product?
  
Q
Is Cynoff WP safe to use with babies and kids?
A
Yes. Unless other wise noted,  the pesticides on our website are safe to use in a home with children. As with any product, it is important to follow the label instructions and precautions to ensure safety. Cynoff WP should be used as a crack and crevice treatment indoors.

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6 of 7 people found this answer helpful

Q
Is there a product that does not leave a white residue? I have a dark house inside and out.
A
A comparable product to the Cynoff WP that will not leave a white powdery residue is Cy-Kick CS. Just like a wettable powder, Cy-Kick CS creates a thick barrier of microcapsules that is impossible for insects to cross without being exposed to a lethal dose of insecticide. Exposed insects pick up microcapsules on their hairs and body triggering a rapid release of the active ingredient, resulting in death.

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3 of 3 people found this answer helpful

Q
Will Cynoff WP Get Rid Of Bees, Wasps, and Hornets on Wood sided barn?

My barn is 100 long by 60 feet wide with 14 foot walls. The siding is all wood and most of it is exposed at this time as the stain has worn off. This has provided excellent staging for bees, hornets and wasps. I intend to stain the entire barn, but I'd like to get rid of the stinging bugs first. Can I spray Cynoff WP on the entire exterior walls of the barn to effectively reduce the massive numbers of wasps, hornets and bees? If not this, what should I do?

A
Yes, Cynoff would be a great option for you. Bees and Wasps: Application to nests should be made late in the evening when insects are at rest. Please be aware that this product has the potential to leave a slight residue over dark areas.

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3 of 4 people found this answer helpful

Q
My house eaves were sprayed with Cynoff and some spray might have drifted down on some small tomato plants.

I washed them off. Would there be any residue when they finally bear fruit 3 months from now?

A
Since Cynoff WP only lasts about 30 days outside, you should be fine if your fruit is 3 months away from being harvested.  Also since you washed them off initially you should be fine.

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3 of 4 people found this answer helpful

Q
How many teaspoons or ounces of Cynoff WP should I put into the 16 ounce bottle?

I will be using my Gilmour, 16 ounce capacity bottle, garden hose attached hand held sprayer. How many teaspoons or ounces of Cynoff WP should I put into the 16 ounce bottle?

A
I believe the Gilmour hose end sprayers have a dial that measure teaspoons of product per gallon of water.  One scoop form the Cynoff WP scooper that come with the container is equivalent to 2 teaspoons.  For most insect control with Cynoff WP, you should mix 2 teaspoons to each gallon of water.  Also, the cynoff WP label says to use one gallon of mixed solution over 400 square feet . Let's say you wanted to spray Cynoff WP over a 1200 square foot area.  This would require 3 gallons of solution, each gallon covering 400 square feet.  Each gallon would require 2 teaspoons of Cynoff WP to mix with the water.  So you should fill your Gilmour hose end sprayer with 3 spoonfuls from the scooper in the Cynoff WP, but set the hose end sprayer on the 2 teaspoon setting per gallon of water, which is probably just turning the dial to the number 2.  You should apply 3 gallons of water through the hose end sprayer, mixing 2 teaspoons at a time over 1200 square feet .  Hope this makes sense.  Hose end sprayers are confusing but can cover a much larger area than hand pump sprayers.  Please feel free to call us if you need any further clarification at 866-581-7378.

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3 of 3 people found this answer helpful

See all 37 customer questions

Cynoff WP 5 out of 5 stars Rating: 4.8 (59 Reviews / 37 Q&A)

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