Onslaught Insecticide

$47.95 - $332.00

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Not for Sale to: CT

4.0 Rating: 4.0

59 Reviews | 121 Q&A 


  Size/Description Price/Ea. Qty  
Onslaught Insecticide pint(s) (16 oz)

Buy 1: $47.95 each

Buy 2: $47.40 each

Buy 3 or more: $46.37 each

Onslaught Insecticide - half gallon half gallon(s) (64 oz)

Buy 1: $185.39 each

Buy 2 or more: $183.37 each

Onslaught Insecticide - gallon gallon(s) (128 oz)

Buy 1: $332.00 each

Buy 2 or more: $330.35 each

Total Price: $0.00

You May Also Need:

Chapin 1 Gallon Pump Sprayer (#20000) Chapin 1 Gallon Pump Sprayer (#20000)
NyGuard IGR NyGuard IGR
Exponent Insecticide Synergist Exponent Insecticide Synergist

Availability: Normally ships in 1 business day.
For large order quotes, please call us at 1-866-581-7378.

Onslaught Insecticide

Onslaught Insecticide is powerful and effective against bed bugs, cockroaches, stink bugs, fleas, brown dog ticks, stored product pests, granary insects, litter beetle, mosquitoes, flying insects, stinging insects, and over 200 other insect pests. found in and around your home or office. Onslaught produces no odor, is easy to use, and can be used both indoors and outdoors, including in food handling areas (please read directions carefully when using in sensitive environments). Onslaught Liquid Insecticide is micro-encapsulated, meaning that after the product is sprayed, the active ingredient is released slowly over time, producing long-lasting residual control of insect pests.

Onslaught is also one of the only products on the market that can be used to bait for Yellow Jackets.  To see how this works, please see our Apine Yellow Jacket Bait Stations with Onslaught Kit.

Active Ingredient: (S)-cyano (3-phenoxyphenyl) methyl-(S)-4-chloro-alpha-(1-methylethyl) benzeneacetate 6.40%
Target pests: Bed bugs, cockroaches, stink bugs, fleas, mosquitoes, brown dog ticks, stored product pests, granary insects, litter beetle, flying insects, stinging insects, and over 200 other insect pests. See label.
For use in: Indoors and outdoors, in homes, landscaped areas, yards and in food and non-food areas of commercial structures.
Application: Mix 0.5 - 1 oz. of Onslaught per gallon of water. Onslaught can also be used for yellow jacket baiting (see our yellow jacket baiting kit).
Pet safe: Yes, when used as directed.
Manufactured By: MGK (UPC: 848920000249)

How Onslaught Works

Onslaught is a milky insecticide concentrate made for dilution with water and application with hand or power sprayers. Onslaught contains a versatile active ingredient, Esfenvalerate, that is microencapsulated for superior residual and knockdown. Esfenvalerate is a synthetic pyrethroid, a man-made insecticide created to mimic the chemical properties of naturally occurring pyrethrins.

Onslaught also has the advantage of microencapsulation, meaning the product is a concentrated suspension with millions of tiny capsules containing the active ingredient. When insects come into contact with the spray or residual left from applying Onslaught, they pick up the tiny capsules on the hairs of their legs and bodies, and the esfenvalerate attacks the central nervous system of the insects, causing paralysis and eventual death.

Target Pests

Over 200 insect pests including: Ants, Bed Bugs, Roaches, Fleas, Mosquitoes, Ticks, Stored Product Pests, Granary Insects, Flying Insects, Stinging Insects (including Yellow Jacket baiting), Livestock Premise Pests such as Face Flies and Litter Beetles, Wood-Destroying Pests such as Carpenter Ants and Swarming Termites, Plant and Ornamental Pests such as Chinch Bugs, Whiteflies, Bagworms, and Pillbugs


INSECTS CONTROLLED: Ants, Aphids, Asian Lady Beetles, Bed Bugs, Beetles, Boxelder Bugs, Carpet Beetles, Centipedes, Cockroaches, Crickets, Dog Ticks, Earwigs, Fire Ants, Firebrats, Fleas, Mealy Bugs, Midges, Millipedes, Mites, Pillbugs, Psocids, Scales, Silverfish, Spiders, Springtails, Swarming Termites, Ticks, Waterbugs

FLYING INSECTS INCLUDING: Blow Flies, Chiggers, Clothes Moths, Crane Flies, Deer Flies, Face Flies, Fruit Flies, Fungus Gnats, Gnats, Horn Flies, Houseflies, Mosquitoes, Small Flying Moths, Whiteflies

BITING AND STINGING PESTS: Bed Bugs, Bees, Biting Flies, Chiggers, Deer Flies, Deer Ticks, Dog Ticks, Fire Ants, Fleas, Gnats, Hornets, Lice, Mosquitoes, Scorpions, Spiders, Ticks, Wasps, Yellow Jackets

STORED PRODUCT PESTS INCLUDING: Angoumois Grain Moths, Ants, Cadelles, Cigarette Beetles, Cockroaches, Confused Flour Beetles, Dark Mealworms, Dried Fruit Beetles, Drug Store Beetles, Flat Grain Beetles, Fruit Flies, Grain Mites, Grain Moths, Granary Weevils, Indian Meal Moths, Lesser Grain Borers, Maize Weevils, Meal Moth Larvae, Mediterranean Flour Moths, Merchant Grain Beetles, Red Flour Beetles, Rice Weevils, Rusty Grain Beetles, Saw-toothed Grain Beetles, Skippers, Spider Beetles, Spider Mites, Square-necked Grain Beetles, Tobacco Moths, Yellow Mealworms

LIVESTOCK PREMISE PESTS INCLUDING: Bed Bugs, Carrion Beetles, Chiggers, Darkling Beetles (lesser meal worm), Deer Flies, Face Flies, Fleas, Flies, Hide Beetles, Horn Flies, Horse Flies, Lice, Litter Beetles, Mites, Mosquitoes, Stable Flies

WOOD DESTROYING PESTS INCLUDING: Carpenter Ants, Carpenter Bees, Deathwatch Beetles, Furniture Beetles, Old House Borers, Powder Post Beetles, Round-headed House Borers, Swarming Termites

PLANT PESTS INCLUDING: Alfalfa Caterpillars, American Plum Borers, Annual Bluegrass Weevils, Aphids, Apple Maggots, Armyworms, Artichoke Plume Moths, Bagworms, Balsam Woolly Adelgids, Beet Armyworms, Billbugs, Blueberry Spanworms, Cherry Fruit Flies, Cherry Fruitworms, Chinch Bugs, Codling Moths, Cowpea Curculios, Cranberry Fruitworms, Cranberry Weevils, Cucumber Beetles, Cutworms, Diamondback Moths, Elm Leaf Beetles, European Pine Sawflies, Fall Webworms, Filbert Worms, Flea Beetles, Grasshoppers, Green Cloverworms, Green Fruit Worms, Gypsy Moth Caterpillars, Hickory Shuckworms, Imported Cabbageworms, Japanese Beetles, Lace Bugs, Leaf Feeding Caterpillars, Leaf Miners, Leaf Rollers, Leaf Tiers, Leafhoppers, Lesser Appleworms, Lesser Peach Tree Borers, Loopers, Lygus Bugs, Mexican Bean Beetles, Mites, Mole Crickets, Naval Orangeworms, Northern Pine Weevils, Oriental Fruit Moths, Painted Lady Caterpillars, Pea Weevils, Peach Tree Borers, Peach Twig Borers, Pear Psyllid, Pear Slugs, Pecan Leaf Phylloxera, Pecan Nut Casebearers, Pecan Spittlebugs, Pecan Stem Phylloxera, Pecan Weevils, Pepper Weevils, Periodical Cicadas, Pickleworms, Pillbugs, Pine Chafers, Pine Coreid Bugs, Plant Bugs, Plum Curculios, Red Pine Sawflies, Red-striped Fireworms, Redheaded Pine Sawflies, Rindworms, Salt Marsh Caterpillars, Sap Beetles, Scales, Sod Webworms, Sowbugs, Spiders, Spittlebugs, Stink Bugs, Tarnished Plant Bugs, Tent Caterpillars, Thrips, Tobacco Hornworms, Tufted Apple Budmoths, Velvet Bean Caterpillars, Walnut Husk Flies, Western Bean Cutworms, Whiteflies

Target Uses of Onslaught Insecticide

Onslaught Microencapsulated Insecticide is designed to provide long residual activity against pests listed on this label when applied as surface or spot treatments, injected into wall voids, or as a crack and crevice spray in and around residential and commercial structures, as well as on turf and landscaping. Onslaught Microencapsulated Insecticide may be sprayed on any surface that will not be stained by water. Labeled for over 200 insect pests, Onslaught is always a great place to start when looking for a residual insecticide concentrate.

Onslaught is an excellent broad-spectrum insecticide concentrate for use in general pest control applications such as quarterly preventative treatments. Because of the microencapsulation, Onslaught is a great choice for larger, tougher pests such as scorpions, roaches, or spiders. Onslaught also offers great control of flying and stinging insect such as mosquitoes and overwintering pests like boxelder bugs. Microencapsulation also means Onslaught performs well on porous surfaces like concrete without the visible residue of wettable powders.

Onslaught also won’t harm turf and ornamentals and is appropriate for dozens of these pests. Use Onslaught even in livestock facilities such as dairy barns, poultry houses, and horse barns (do not use on animals).

ACTIVE INGREDIENT: Esfenvalerate 6.4%

Application Instructions

Onslaught is designed to provide long residual activity against listed pests when applied as surface or spot treatments, injected into wall voids, or as a crack and crevice spray in and around residential and commercial structures, as well as on turf and landscaping. DO NOT use as a fogger or space spray.

Mixing Instructions:

Onslaught should be mixed with water and applied with hand pressurized or power operated sprayers.

1. Shake container of Onslaught Insecticide before diluting. Clean spray equipment before use.

2. For dilution, add approximately half the required water to spray tank and then add the appropriate amount of insecticide. Agitate and slowly add the remaining water. 3. Agitate spray thoroughly before using and also occasionally during use to ensure dispersion.

If spray filter screens are used, they should be 50 mesh or larger.

4. Apply two-second bursts of spray per square foot of area being treated. Avoid excessive application. Dampen surfaces but not to the point of saturation or run-off.

Always read the product label completely before use.

Each 16 oz. bottle makes 8-16 gallons of finished solution.

Standard Application Dilution Rates / Mixing Ratios:

*0.5 fl. oz. (15 mL)/gal. of water – 0.025% a.i. – Light infestations, maintenance, flying insects, ticks, fleas, lice and bed bugs indoors

*1.0 fl. oz. (30 mL)/gal. of water – 0.05% a.i. – Heavy infestations, initial cleanout, stinging insects

*0.1 to 1.0 fl. oz. per 1,000 sq. ft. – Ornamental trees and landscapes, lawns and turf – Use sufficient water to cover area.

*1 gallon of finished solution covers approximately 1,000 square feet.

For use in the following areas:

Indoors and outdoors, in food and non-food areas such as, but not limited to: homes, schools, warehouses, office buildings, apartment buildings, theatres, hotels, industrial buildings, motels, kennels, livestock housing, food processing plants, food service establishments, restaurants, supermarkets and grocery stores, transportation equipment, truck trailers, railroad cars, and food manufacturing and warehousing establishments. Food processing/handling establishments include but are not limited to: restaurants, meat processing plants, grocery stores, bakeries, food manufacturing and processing establishments, and food warehousing establishments. Also for use on backyards, lawns, trees, ornamental landscaping, recreational areas, parks and athletic fields.


Crawling Pests: Apply as a coarse, wet spray to surfaces where these pests are normally found. Treat floors, baseboards, around doors and windows, in attics, crawl spaces, eaves, corners, closets, walls, utility pipes, storage areas, and all cracks and crevices. Treat underneath sinks, dishwashers, refrigerators, stoves, the underside of shelves, drawers, cabinets, areas behind pipes, and in all places where these insects shelter. Contact as many insects as possible with direct spray. Repeat applications as needed, but do not exceed more than one application every seven days.

Fleas: Thoroughly apply as a fine particle broadcast spray to infested rugs, carpets, and pet resting areas. Prior to treatment, aquariums and fish bowls should be covered, and pet animals should be removed from the area being treated. Do not permit humans or pets to contact treated surfaces until spray has dried. Old pet bedding should be removed and replaced with clean, fresh bedding after treatment. DO NOT SPRAY PETS WITH THIS PRODUCT. Treat dogs and cats with a product registered for use on animals.

Bed Bugs: Thoroughly clean and sanitize mattresses and box springs. Treat mattresses and box springs with an approved pesticide, such as a pyrethrin aerosol. Apply Onslaught as a spot treatment to potential harborage sites and migration paths, and cracks and crevices, around baseboards, floorboards, head-boards, and walls. Not recommended as the sole treatment for bed bugs.


Other than applications to building foundations, all outdoor applications to impervious surfaces such as sidewalks, driveways, patios, porches and structural surfaces (such as windows, doors, and eaves) are limited to spot and crack-and-crevices applications, only.

Exterior walls, foundations, and structures: To control infestations of listed pests, treat exterior surfaces of buildings, walls, window frames, around garbage cans, eaves, cracks and crevices, porches, decks, gazebos, patios, carports, garages, fence lines, and other areas where pests are active or may be hiding.

To help prevent insect infestation of buildings: Treat a 2 to 6 foot band of soil or other substrate adjacent to buildings. Treat building foundation to a height of 2 to 3 feet. Treat exterior walls, eaves, cracks and crevices, and other areas where listed pests are active, and may find entrance into building.

Apply with sufficient water to adequately cover the area being treated, but do not allow dripping or run-off to occur. Alternate mixing directions are to use 2 to 4 fluid ounces of concentrate per 50 gallons of water.

Insect control in ornamental trees and landscapes: For residential and commercial trees, shrubs, ground covers, and bedding and foliage plants that will not be harvested for food, apply Onslaught in appropriate volumes of water to obtain thorough coverage. Apply as a full-coverage foliar spray, applying to the point of drip but not runoff. Treat active soil pests with an application to surrounding soil. Repeat treatments as necessary to achieve control, using higher application rates as pest pressure and foliage area increases. Repeat applications as necessary, but no more than once every seven days. Certain plants may be sensitive to the final spray solution. A small-scale test is recommended to verify safety to ornamental plants. Spray and observe for one week prior to application of an entire planting.

Insect control on lawns, turf grass and turf: For best results, lawn or turf grass should be mowed 1 to 2 days before spraying. Treat with spraying equipment or a hand sprayer. Use application volumes of up to 10 gallons per 1,000 square feet to get uniform coverage when treating dense grass foliage. For low volume applications using less than 2 gallons of spray solution per 1,000 square feet, immediate irrigation with at least 0.25 inches of water is recommended to improve effectiveness on sub-surface pests. When hand spraying, spray using a slow, even sweeping motion, making sure to cover the entire lawn or turf grass area where pests are observed. Spray under ornamentals and trees. Repeat treatments may be necessary at 7 to 14 day intervals. Use 1 fl. oz. per 1,000 sq. ft. for mole crickets and chinch bugs.

Onslaught Insecticide Features

*Controlled release technology provides longer-lasting residual control.

*Effective on a broad-spectrum of insects and related pests.

*Flexible - may be used indoors and outdoors, in homes and in food and non-food areas of commercial structures.

*No objectionable odor.

*Easy to use formulation.

*Kills for up to 12 months.

*Labeled for over 200 insect pests, including crawling, flying, stinging, stored product, pantry, livestock, and ornamental plant pests

Extra Tips

*Onslaught contains petroleum distillates.

*Shake well before using.

*Do not apply as a fogger or apply as a space spray.

*Tank mix Onslaught with an IGR such as NyGuard IGR Concentrate to break the insect growth cycle and control future emerging insect populations.

*Do not use on animals.

*Not for use on plants being grown for sale or other commercial use. Not for use in nurseries, sod farms or golf courses.

*Do not treat establishments where livestock feed is present.

*Do not exceed more than 1 application every 14 days in food establishments.

*Only dilute Onslaught with water.

Compare to: FenvaStar EcoCap

Rating Snapshot

5 stars   34
4 stars   12
3 stars   3
2 stars   1
1 star   9

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Average Customer Rating
4.0 star rating (59 reviews)

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Most Helpful Customer Reviews
  • 55 of 56 people found this review helpful:

    5 of 5 Stars  Highly effective, very economical and long lasting
    By Sean in Arizona on May 7, 2010
    Verified Purchase

    No odor, and non-staining, leaves no visible film or residue. When mixed and applied at the suggested rates, you get what the manufacturer promises: THREE months of highly effective pest control. It is apparently U.V. resistant, as we are in Arizona, and still get three months out of a single application. For reference, we are using this product for the control of: SCORPIONS, FIRE ANTS, BLISTER BEETLES, and EARWIGS.

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  • 51 of 55 people found this review helpful:

    3 of 5 Stars  Bitting mites
    By Aurore in Canton, GA on August 4, 2010
    Verified Purchase

    We had a very noticeable knockdown from whatever type of mites we have been fighting using this product. I used it in my car even and have not had anything work this good and the house is so much better. Second application will go down this weekend-I am encouraged! After using many other insecticides this has worked best for us. We just followed direction on the bottle.

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  • 32 of 36 people found this review helpful:

    5 of 5 Stars  Great product
    By Carl in Hanford, CA on December 7, 2010
    Verified Purchase

    Onslaught is exactly as advertised. Works great on bed bugs. Follow all instructions on this product and it will take care of those pests. It beats paying Orkin $1,500 bucks to take care of something you could do yourself for $70. Also be careful of old furniture you bring into your house. No telling what kind of infestation that might be hiding inside it!

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  • 26 of 29 people found this review helpful:

    5 of 5 Stars  Onslaught Insecticide
    By Frank in Lancaster on May 15, 2011
    Verified Purchase

    What can I say Great product!! Ants DEAD! Spiders Dead! Wasps Dead! And the best is Carpenter Bees DEAD DEAD DEAD!! I made a light mix for inside the house and the trees and shrubs, and a heaver mix for spraying the outside of the house. All my plant life is safe and green and we have not seen any types of insects in any of the treated areas in or outside the house.

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  • 24 of 25 people found this review helpful:

    5 of 5 Stars  Onslaught Really Works
    By Paula in Shiner, Texas on May 17, 2010
    Verified Purchase

    Easy application. I did have a bit of a problem getting the liquid into the left side of the container (measuring unit). We love the fact that it is micro-encapsulated. We sprayed around our home, under our home and in the yard.  Absolutely no odor!  It has been two weeks and we just had several inches of rain so I an curious to see if the product will still slow release.  So far, we are extremely satisfied. The main reason for spraying was scorpions. We haven't seen one since spraying.

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Most Recent Customer Reviews
  • 3 of 5 Stars  onslaught with nyguard ez1
    By Wayer in phoenix az on October 12, 2015

    Easy to use. Carpet gummy. Fleas knocked down good. Didn't leave stains on furniture. My Apt uses it also for roaches he says. This website great, customer service great. Recommended to friends. Saving lots of money always a plus. No smell. Dries fast. Will def keep using.

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  • 4 of 5 Stars  Onslaught Insecticide
    By Bob in Dragoon, Az. on October 1, 2015

    Product mixed and when added Exponent Insecticide Synergist also mixed well. Acquired a new puppy who came with ticks, so to keep them from spreading to my other animals, I purchased this product. Sprayed around house working closest to house to surrounding area. Appears to work as directed, will have to wait for a couple of months to see if there is continued protection.

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  • 5 of 5 Stars  good stuff
    By William in Thorn Hill, TN on September 19, 2015

    Works just as you said no more bugs Thank you

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  • 5 of 5 Stars  Yellow Jacket Next
    By John in Rockland, Maine on September 18, 2015

    I went through 10 cans of wasp and hornet spray with no luck. The yellow jackets went into the window frame after I knocked down there nest and there was no killing them with the spray. After buying the 16 oz. bottle of Onslaught Insecticide, I was home free. It took about a week of applications but I was finally totally free of the yellow jackets. In the long run, I liked putting the product into a pump spray container instead of the cans.

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  • 1 of 1 people found this review helpful:

    5 of 5 Stars  A must buy product
    By Jeff in Beavercreek Ohio on September 4, 2015

    After I found out I had bed bugs I panicked and called a well known pest control company. They charged me 800 dollars to spray my furniture. I signed the contract. Later I read the small print which stated the guarantee was only good for 30 days. Come to find out that the same products they used were what I could buy myself on this website for less than 100 dollars shipped to my door. It is a combination of onslaught and Nyguard. I would advise everyone to purchase these products from this website and spray yourself.

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  • 4 of 5 Stars  Onslaught Insecticide
    By Lenny in Logansport IN on August 31, 2015

    Requires multiple treatments but does finally take care of removal of fleas.

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  • 1 of 1 people found this review helpful:

    1 of 5 Stars  Does Not Work for Bird Mites
    By Erick in Los Angeles, CA on August 27, 2015

    I followed the intructions mixed it at .50% at first then at 1%, I sprayed the carpet in my room and living three times every seven days and the bird mites are still there. I an very disappointed after domyownpestcontrol recomended this pruduct and it did not do the job. I would not recomend it.

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  • 5 of 5 Stars  Onslaught pesticide
    By Paul in Virginia Beach, Va on August 16, 2015

    Great product for creepy crawlers around your home. No odor or staining. Great stuff!!!

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  • 0 of 4 people found this review helpful:

    1 of 5 Stars  DID NOT WORK
    By Richard in 29 palms, CA on December 1, 2014
    Verified Purchase

    This product did not work at all for us even though I followed the directions COMPLETELY. I am VERY disappointed with the results as it was money just thrown away! After 2 applications, 2 days apart the pests are still around and thriving!

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  • 5 of 5 Stars  Pleased
    By Ara in FL on November 11, 2014
    Verified Purchase

    Have used around perimeter & in some areas indoors. Have not seen insects since application except for dead ones outdoors.

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Most Helpful Q&A's

November 1, 2009 Sterling asked:

QWill Onslaught kill bird mites? Nothing else seems to get rid of them.

AOnslaught will kill bird mites, but the problem with bird mites is finding the breeding source.  Onslaught may provide some relief, however many times mites will breed under carpet or in wall voids, where you cannot spray.  This is why treating for mites is very difficult and usually requires multiple products and lots of vacuuming.

31 of 32 people found this answer helpful.
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February 18, 2011 Mat asked:

QWhy is Onslaught so much more than others like Bifen and Conquer?
I did my research on the insecticide portion of my planned flea control program (will be mixing with an IGR). What does the Onslaught offer that products like Bifen, Conquer and Demise do not? The significantly higher price tag must be due to some increased benefits.


Each of the products you mentioned have different active ingredients, or different formulations and different manufacturers. So that we are comparing apples to apples, we will compare Onslaught and Conquer which both have the same active ingredient, Esfenvalerate and both are sold in pint size bottles. Conquer contains 3.48% of the active ingredient and Onslaught contains 6.40% of the active ingredient. You will use 1 ounce of Conquer to make 1 gallon of finished solution for flea control while you will only use .5 of Onslaught to make one finished gallon of solution for flea control. Conquer is labeled for about 50 insects, Onslaught is labeled for about 200. Onslaught also has the benefit of being micro-encapsulated which makes it safer to use indoors and makes it last longer outdoors. 

Bifen is not a good choice for indoor flea control because it cannot be used over carpeting or on furniture It can only be used in cracks and crevices around the perimeter of the room. Demize EC is a great product, which offers a fast  knockdown but it does not offer any residual control and it can only be used indoors.

31 of 32 people found this answer helpful.
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March 8, 2010 James asked:

QIs it safe to use a full ounce of Onslaught one week after application?
I have recently sprayed Onslaught in my apartment twice for bird mites at 1/2 ounces per gal. each time with about 8 days in between with Gentrol the first time. Is it safe for me to use a full ounce next after another week?

AAccording to the Onslaught Product Label, you can use Onslaught at the "heavy infestation" rate of 1 ounce per gallon of water every seven days. Gentrol is not labeled for mites and therefore is not recommended for bird mite infestations.

16 of 17 people found this answer helpful.
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August 26, 2010 Debi asked:

QWill Onslaught continue to kill black widow and brown recluse spiders even after it has dried?

AYes. Onslaught will leave a long lasting residual that will continue to kill spiders for a month or more. Onslaught will also help get rid of the insects that spiders feed upon which helps to prevent new spiders from moving in.

16 of 17 people found this answer helpful.
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December 30, 2010 Travis asked:

QWill Onslaught kill wolf spiders?
These spider's seem to be every where. In the year and a half that me and my wife have lived in the home we have found or killed over 200. Not that I'm actually keeping count but it seems every day I go into the basement there is a new one laying somewhere. I have also killed many in our yard while mowing. They are becoming rather large and I can see them going over twigs and see the grass moving as I mow. I bought a product at Walmart last summer and it seemed to help, I sprayed around the baseboards and the spiders didn't make it 4 inchs away before they were dead. But I can't seem to stop them from getting into my house. Will onslaught help or what product do I need?

AGenerally speaking, Onslaught will kill wolf spiders, but it does not offer a fast knockdown. Onslaught is micro-encapsulated and can take several hours to kill the spiders. We usually recommend Cyper WP because it offers a faster knockdown and the same residual as Onslaught and it can be used for indoor and outdoor spider control. The active ingredient in Cyper WP is cypermethrin, which is known to be one of the top choices for spider control. Spraying Cyper WP will also help to get rid of the insects that spiders feed on and that will help to stop new spiders from moving in. Indoors, spray around all baseboards, door frames, window frames, under appliances, in closets and storage rooms and in areas where utilities (cables, pipes, wires) enter into the structure. Outdoors you should spray around the bottom of the foundation, on the ground adjacent to the foundation, door frames, window frames and places where the utilities enter into the structure and any other place insects can harbor.  We have included Cyper WP in our spider control kit, which also contains glue boards to help monitor the infestation (and help catch the spiders too).

12 of 15 people found this answer helpful.
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Most Recent Customer Questions

November 12, 2015 Chris from Brownsville, Texas asked:

QCan I use Onslaught Insecticide for general treatment with pesticides?
Only pests I've seen are carpenter ants, spiders, wasps, silverfish, and rare roach. Can I mix multiple products for better treatment?


Onslaught Insecticide is a greta option for a general pest control treatment. Onslaught is labeled to treat for over 200 insects and can applied indoors as a crack and crevice application and outdoors as a perimeter treatment. Please refer to the label for further information.

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September 23, 2015 Jim from Lakeland asked:

QCould I use a dial and spray to apply Onslaught pesticide?


Onslaught can be applied using a hose end sprayer. Be sure that the dial accomodates the mixing ratio needed for your treatment. 

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September 22, 2015 Rich from Worcester, Ma asked:

QIs Onslaught a good choice for treating springtails?
I've been spraying onslaught in cellar and switching outdoors between Onslaught and Transport GHP. I've applied Demand G granules in the mulched areas. I also have cut bushes down around house and thinned mulch.


Applying Onslaught to indoor cracks and crevices, outside and entry points is great! Transport GHP will also be effective for springtails. Demand G granules will last longer outdoors. The key is to continue the applications as directed and eliminate as much moisture off the property as possible. They are attracted to areas of moisture and it is good that the mulch was reduced. Please take a few moments to review our article on eradicating springtails for more helpful information.

Springtail Control Information

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September 22, 2015 Bre from Texas asked:

QHow many ounces of Onslaught and NyGuard IGR do I mix in a hose end sprayer?
My packaged arrived today! Very satisfied with your customer service! My yard is roughly 1300 sq feet and I'm treating for a heavy flea infestation.


You will mix 1.5 oz of Onslaught and 4ml of NyGuard to 1.5 gallons of water to treat 1500 sq ft. You will apply once every two weeks (minimum of two treatments). Please take a few moments to review our Flea Treatment Article for additional helpful information.

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August 14, 2015 Abraham from Los Angeles, California asked:

QWhat is the mixing ratio of Onslaught Insecticide when treating for roaches?


Onslaught Insecticide is mixed at a ratio of .5oz- 1oz to a gallon of water depending on severity of infestation. For cockroach treatments, we recommend mixing at 1 oz to a gallon of water. Please read label for further instruction.

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July 25, 2015 Mary from Dallas Tx/mead Ok asked:

QCan you mix Onslaught Insecticide and Gentrol IGR in the same sprayer?
Can you mix and apply both Onslaught and Gentrol together in the same sprayer (mix both in the same gallon of water)? Application is to houses and yards in both Dallas, TX and Mead, OK. How much will I need to spray 2000 sq ft of house and 3+ acres of yard.


Yes, Onslaught and Gentrol can both be mixed together in the same gallon of water.  You will mix both products at the rate of 1 oz per gallon of water.  Generally, one gallon of finished solution will cover around 1000 sq. ft.  

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July 21, 2015 Adam from Loxahatchee, Fl asked:

QHow does Onslaught compare to Cyonara?


<span new="" roman;="" font-size:medium"="">Both products are pretty comparable to each other, and which you choose really depends on what you are treating for, as they are both great for general pest control.  Cyonara is labeled to be used as a crack and crevice treatment only when used indoors. You should use Onslaught insecticide if you would like to do a broadcast treatment over the carpeted areas, it is labeled for over 200 different pests whereas as Cyonara does not have such a broad label.  They both can be used in the same areas outside, though Onslaught will hold up a little longer on outside surfaces.

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July 15, 2015 Honey from Adelanto, California asked:

QShould I get the gas turned off in house before using Onslaught Insecticide?


As long as you are only spraying in the areas specified on the product label, there should be no reason to turn off the natural gas when applying Onslaught.  If applying near units with pilot lights you would need to turn those off. 

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July 6, 2015 Lisa from Colorado asked:

QIs Onlsaught Insecticide best for chiggers in the yard?


Onslaught is a great product for chigger control. Treatments for chiggers should begin in April/May and could need to continue through the summer as new chiggers move into the area. Treating the entire lawn is of little benefit because chiggers avoid direct sunlight and normally will not infest areas that are mowed or otherwise well maintained. Focus treatment on the unkempt areas of the lawn and lawn edge. You can also use Onslaught to do a barrier treatment around the outside of your home and in your crawl space to stop pests from moving indoors.

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July 4, 2015 Elizabeth from Tiller, Oregon asked:

QI am looking for a poison that can be added to meat to kill yellow jackets only. Do no want to kill non aggress

A Onslaught is currently the only EPA approved insecticide for baiting yellow jackets.  It is not selective though and anything that contacts or eats the treated meat could die as well.  We recommend mixing 1/4 teaspoon of Onslaught per 12 oz. of bait.

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