Onslaught Insecticide

$49.50 - $332.00

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Not for Sale to: CT

4 out of 5 stars Rating: 3.9

65 Reviews | 125 Q&A

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{ $49.50 { $48.93 { $47.87 $185.39 $183.37 $332.00 $330.35
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Onslaught Insecticide pint(s) (16 oz)

Buy 1: $49.50 each

Buy 2: $48.93 each

Buy 3 or more: $47.87 each

$49.50
Onslaught Insecticide - Half Gallon half gallon(s) (64 oz)

Buy 1: $185.39 each

Buy 2 or more: $183.37 each

$185.39
Onslaught Insecticide - Gallon gallon(s) (128 oz)

Buy 1: $332.00 each

Buy 2 or more: $330.35 each

$332.00
Total Price: $0.00


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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, Granary Insects, Litter Beetle, Flying Insects, Stinging Insects and others
* See label for complete list
For use in: Commercial & Residential Indoors & Outdoors: Lawns, Ornamental Landscaping, Exterior Walls, Mosquito Breeding Sites and others
* See label for complete list
Application: 0.5 - 1 oz. per gallon of water
* May be used for Yellow Jacket Baiting (Yellow Jacket Baiting Kit)
Pet safe: Yes, when used as directed on label
Formulation: Professional Product
NOT FOR SALE TO: CT
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 Insects

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: 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 INSECTS: 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 INSECTS: 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 INSECTS: 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 INSECTS: Carpenter Ants, Carpenter Bees, Deathwatch Beetles, Furniture Beetles, Old House Borers, Powder Post Beetles, Round-headed House Borers, Swarming Termites

PLANT INSECTS: 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

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.
  3. 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.

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.

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.

Indoors

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.

Outdoors

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 for Ornamental Trees & 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 for Lawns & Turf-grass: 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.

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   36
4 stars   14
3 stars   4
2 stars   1
1 star   10

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Average Customer Rating
4 out of 5 stars (79)

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Most Helpful Customer Reviews
  • 67 of 71 people found this review helpful:

    3 of 5 stars  Bitting mites
    By Aurore in Canton, GA on 08/04/2010
    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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  • 60 of 63 people found this review helpful:

    5 of 5 stars  Highly effective, very economical and long lasting
    By Sean in Arizona on 05/07/2010
    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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  • 39 of 44 people found this review helpful:

    5 of 5 stars  Great product
    By Carl in Hanford, CA on 12/07/2010
    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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  • 34 of 38 people found this review helpful:

    5 of 5 stars  Onslaught Insecticide
    By Frank in Lancaster on 05/15/2011
    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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  • 30 of 31 people found this review helpful:

    5 of 5 stars  Onslaught Really Works
    By Paula in Shiner, Texas on 05/17/2010
    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
  • 5 of 5 stars  Mosquito control
    By Michael in Massapequa, ny on 07/09/2016

    As a homeowner on Long Island I have had a ridiculous amount of mosquitos every spring and summer, this pesticide I applied as directions stated, over the past 2 weeks I have seen one mosquito, have gotten no bites, strongly recommend this product.

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  • 3 of 5 stars  Jury is still out
    By Geri in Lake Shore on 06/26/2016

    This doesn't seem to work as good as Talstar P, and it's MUCH more expensive. We hope to see more improvement after another application. We've been using Talstar P for 3 years and we read on the label that you're supposed to switch products occasionally, so we decided to try the Onslaught. We expected better based on the price!

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  • 4 of 5 stars  Onslaught Insecticide
    By M. in Martin, TN. on 05/22/2016

    I purchased Onslaught Insecticide to get rid on the red wasps around my home. With one application it has helped. I will apply another application. I went on to spray it on my weeping cherry whose new growth had been defoliated in early spring in years past. I am glad to say no defoliation this spring! I will purchase more.

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  • 1 of 5 stars  Recommended for moths
    By Cassy in Martinez Ga on 05/11/2016

    I have an infestation of moths in my yard, trees and shrub. There was no reduction. Very disappointed in this product and waste of money. Too expensive with no results

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Onslaught Insecticide
    By Pedro in hollywood on 05/07/2016

    As a Certified Pest Control Operator I recommend this product 100%.

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  • 2 of 2 people found this review helpful:

    4 of 5 stars  Great Basic Pesticide
    By Nick in Colorado on 02/28/2016

    I am impressed with the product. It last a long time after application and really controls the bugs. We sprayed outside the house and in select entry points and other areas inside the house. Orkin was going to charge over $200 for routine maintenance pest control service. Works just as well as the professional hired services if not better.

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  • 5 of 5 people found this review helpful:

    3 of 5 stars  onslaught with nyguard ez1
    By Wayer in phoenix az on 10/12/2015

    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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  • 3 of 3 people found this review helpful:

    4 of 5 stars  Onslaught Insecticide
    By Bob in Dragoon, Az. on 10/01/2015

    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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  • 2 of 2 people found this review helpful:

    5 of 5 stars  good stuff
    By William in Thorn Hill, TN on 09/19/2015

    Works just as you said no more bugs Thank you

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Yellow Jacket Next
    By John in Rockland, Maine on 09/18/2015

    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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Most Helpful Q&A's

02/18/2011 Mat

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.

A

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.

37 of 39 people found this answer helpful.
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11/01/2009 Sterling

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.

36 of 37 people found this answer helpful.
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03/08/2010 James

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.

20 of 21 people found this answer helpful.
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08/26/2010 Debi

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.

19 of 20 people found this answer helpful.
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12/30/2010 Travis

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).

18 of 21 people found this answer helpful.
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Most Recent Customer Questions

06/06/2016 Amanda from Sullivan, Mo

QWhen mixing Onslaught and Precor, do I add one ounce of each to one gallon of water?

A

Yes, you will mix one ounce of Onslaught and one ounce of Precor to one gallon of water for indoor applications.

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03/15/2016 Stephen from Des Moines, Ia

QWhat's the difference between Onslaught and Onslaught FastCap?

A

Both products have two different active ingredients. They are both labeled for various insects. Onslaught Fast Cap has the additional active ingredients of Prallethrin and Piperonyl Butoxide (PBO) that provide fast-acting control of pests. FastCap is like having two products in one without having to worry about mixing them.

1 of 2 people found this answer helpful.
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03/14/2016 Ike from Dallas, Tx

QWould Onslaught Insecticide be a safe product for all insects that is not staining, safe indoors and out, and a persistent pest control product?
I live in Dallas, Texas. I want to target all crawling insects by spraying around the house, but also safe to spray inside the house occasionally. Looking for persisitence in the 3 month range. No staining with spray. My house only so I don't need a lot to try it out. I have have used Diazinon 4E to good effect in the past but cannot get it now. What do you recommend?

A

Yes, Onslaught Insecticide covers over 200 different pests and will give you a 90 day residual outdoors. It is both an indoor and outdoor product, and is both odorless and non-staining as well. You will also get a 90+ day residual indoors.

1 of 1 people found this answer helpful.
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01/04/2016 Harlan from Phoenix, Az

QIf I don't need the quicker knockdown, is there any reason that I would rather have Onslaught Fastcap versus Onslaught?
Is the residual time the same?

A

The residual will be the same indoors and outdoors for Onslaught and Onslaught FastCap. It will offer a 30 day outdoor and 90 day indoor residual. They have the same listed pests on the product labels. You could apply Onslaught if you do not need a quick knockdown.

1 of 1 people found this answer helpful.
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11/12/2015 Chris from Brownsville, Texas

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?

A

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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09/23/2015 Jim from Lakeland

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

A

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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09/22/2015 Rich from Worcester, Ma

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.

A

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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09/22/2015 Bre from Texas

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.

A

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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08/14/2015 Abraham from Los Angeles, California

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

A

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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07/25/2015 Mary from Dallas Tx/mead Ok

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.

A

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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