Demand CS

$36.91 - $961.36

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4.5 out of 5 stars Rating: 4.7

286 Reviews | 177 Q&A


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Demand CS

Demand CS is a water-based insecticide concentrate that offers excellent indoor and outdoor pest control. Demand's micro-encapsulated technology means that when you apply it, it leaves thousands of micro particles that bind to the surface offering long-term protection and fast insect knock-down. In fact, Demand CS is up to 200 times more active on flies, mosquitoes, and other insects than other insecticides. Demand CS controls more than 30 common insects including spiders, ants, flies, wasps, fleas, ticks and bed bugs. It can be used both indoors and outdoors with little to no odor or staining.

How Demand CS Works

To understand how Demand CS works you must first know what it is. Demand CS is a microencapsulated water-based formulation offering superior insect control. Compared to older pyrethroid materials that have been used for many years with declining results, it is up to 200 times more active on flies and other animal health pests allowing lower rates. And it’s designed not only to work better, but to work longer. Demand CS controls over 30 insect pests including: Ants, Bees, Carpet Beetles, Centipedes, Cigarette Beetles, Cockroaches, Confused Flour Beetles, Firebrats, Fleas, Ticks, and more.

Demand CS combines an advanced generation pyrethroid with a unique capsule suspension formulation for outstanding protection against numerous perimeter insect pests.

Once the formulation has been applied and dried, lambda-cyhalothrin, the active ingredient, is released from the capsules. Control will occur primarily through direct contact of the insect pest with the capsules, with lambda-cyhalothrin transferring directly from the capsule to the cuticle of the insect. It is also possible for the capsules to be ingested in the case of insect pests which preen themselves such as cockroaches.

Target Insects

Large variety of yard, home and ornamental pests, including but not limited to:

INSECTS CONTROLLED: • Ants • Aphids • Armyworm • Azalea caterpillar • Bagworm • Bed bugs • Bees • Beetle • Black turfgrass ataenius • Black vine weevil • Bluegrass billbug • Boxelder bugs • Broadmite • Brown soft scale • Budworm • California oakworm • California red scale (crawler) • Cankerworm • Carpenter bees • Carpet beetles • Centipede • Chiggers • Chinch bug • Cigarette beetles • Clover mite • Cluster flies • Cockroaches • Confused flour beetles • Crickets • Cutworm • Earwigs • Eastern tent caterpillar • Elm leaf beetles • European sawfly • Fall webworm • Firebrats • Flea beetle • Fleas • Flies • Forest tent caterpillar • Grasshopper • Grubs • Gypsy moth larvae • Hyperodes weevil • Japanese beetle • June beetle • Lace bugs • Leaf skeletonizer • Leaf-feeding caterpillar • Leafhopper • Leafminer • Leafrollers • Lesser grain borer • Litter beetles • Mealybug • Midges • Millipede • Mites • Mole cricket • Mosquito • Oleander moth larvae • Parasitic Wasp • Pillbug • Pine sawfly • Pine shoot beetle • Pineneedlescale (crawler) • Pinetip moth • Plant bug • Red flour beetles • Rice weevil • Root weevil • Sawfly • Saw-toothed grain beetles • Scale insect (crawler) • Scorpions • Silverfish • Sowbugs • Spider • Spider mite • Spider Mite, (two-spotted spruce) • Spittlebug • Striped flea beetle • Striped oakworm • Termites • Termites, (above ground only) • Thrips • Tick • Tip moth • Tussock moth larvae • Wasps • Webworm, sod • Whiteflies

Target Uses

Demand CS Insecticide Concentrate is ideal for general, broad-spectrum pest control, perimeter applications, and crack and crevice treatment indoors. Demand CS is also ideal for treatment of flying insects such as mosquitos, lawn and ornamental pests such as ticks and fleas, and crawling pests such as spiders, beetles, and scorpions. See complete list of pests below.

ACTIVE INGREDIENT: Lambda-cyhalothrin 9.7%

Application Instructions

*** Always read product label and directions completely before using ***

Use indoors (crack and crevice only) and/or outdoors. Best applied with a 1 gallon sprayer. Apply to outside foundation and all entry points such as around windows, doors, etc. Always read the label completely before use.

  • 8 oz. bottle yields 10-40 gallons of finished solution for standard application rates.
  • Quart (32 oz.) bottle yields 40-160 gallons of finished solution.

Standard Application Dilution rates / Mixing Ratios:

  • 0.2 fl. oz. (6mL)/gal. of water – 0.015% -  light infestation, maintenance, general crawling pests
  • 0.4 fl. oz. (12 mL)/gal. of water – 0.03% - moderate infestation
  • 0.8 fl. oz. (24 mL)/gal. of water – 0.06% – clean-out, severe infestations, scorpions, spiders

Watch the video on this page for general use mixing and application instruction using a 1 gallon sprayer.

Use in the Following Areas:

In, on and around buildings and structures for the control of listed pests, including on lawns, ornamental trees and shrubs around residential, institutional, public, commercial, agricultural and industrial buildings; and parks, recreational areas and athletic fields; food handling establishments; livestock/poultry house structures; pet kennels.


  • Use as a crack and crevice treatment only. May apply at 21-day intervals. Remove pets or children from treatment area until product is dry.
  • For bed bugs – Use 0.2-0.4 fl. oz./gal. of water. Do not apply to bedding or to mattresses or furniture surfaces where people will be laying or sitting.
  • May be converted to a foam for treatment in structural voids.


  • 1 Gallon of finished solution will generally cover 1,000 square feet when using a hand pump sprayer for spot or perimeter treatments.
  • If using a hose-end sprayer, calibrate to 0.2, 0.4, or 0.8 ounces, and use 1-5 gallons of water per 800-1600 square feet. Higher volume applications will result in better coverage, particularly for mosquito control.
  • For ornamental pests – Use 1.5 – 5 fl. oz (44-148 mL) / 100 gallons of water – May be applied at 7-day intervals if necessary. Use lower dilution rates for more frequent applications or limit to spot treatment. The addition of a spreader sticker may increase application to waxy foliage.
  • When using large tank mixtures, use a buffering agent if necessary to keep pH from 5-7.
  • For lawn and turfgrass pests – Use 3.4-7 mL/1000 square feet or 5-10 fl. oz. / Acre
  • For thatch or subsurface inhabiting pests, use irrigation after application or higher water volumes to carry the active ingredient to the target pests.


  • Pet safe when dry
  • Virtually no odor or staining
  • Low mixing rate is economical
  • Labeled for applications in food-handling establishments
  • iCap technology creates a longer-lasting, more effective insecticide concentrate
  • Capsules protect active ingredient from UV rays, extreme pH, and porous surfaces
  • Over 10,000 capsules of killing power in every square inch treated
  • Up to 200 times more effective on mosquitoes, flies, and other insects than other insecticides
  • Diluted mixture resists settling
  • Can be tank mixed with almost all labeled insecticides, IGRs, additives, or synergists
  • iCap technology and liquid concentrate reduce exposure risk during mixing and application
  • Convenient squeeze and pour container makes measuring and mixing easy.
  • Has no harmful effects on earthworms, soil processes, or soil microorganisms when used correctly.

Extra Tips for Using

  • Best applied with a hand pump sprayer
  • Allow at least 30 minutes after application before allowing pets or children into treatment area. For best results, allow 24 hours after outdoor application before expected rainfall or watering. Some applications may require irrigation.
  • Add Demand CS last when tank mixing with other products.
  • Use with an IGR such as NyGuard IGR for control of all life stages of insects such as fleas.
  • Store out of direct sunlight and extreme temperatures.

Compare to: Equil Lambda 9.7 CS, Cyzmic CS, Cyonara 9.7, Optimate CS, Demand EZ

Rating Snapshot

5 stars   239
4 stars   28
3 stars   7
2 stars   5
1 star   7

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Average Customer Rating
4.5 out of 5 stars (286)

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Most Helpful Customer Reviews
  • 118 of 125 people found this review helpful:

    5 of 5 stars  Excellent product
    By Eric in Scottsdale, AZ on 06/09/2009
    Verified Purchase

    We live at the base of the McDowell Mountains in North Scottsdale where crickets, spiders and scorpions are everywhere. I applied Demand CS right before sunset and the following morning it looked like an atomic bomb went off in my yard. Dead crickets, black widow spiders, cockroaches and last but not least the follow evening a slowly dying scorpion in our bedroom that accidentally crossed the wrong path. In nearly three weeks since we applied the product, I have yet to see ONE single cricket, spider, or cockroach. Great product!

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  • 83 of 85 people found this review helpful:

    5 of 5 stars  Great stuff!!
    By Lauren in Gates, NC on 04/29/2010
    Verified Purchase

    We own a log home and have been plagued by carpenter bees. We have tried several other products: powders, liquids, professional and home store strengths and this is by far the best! It is non staining and easy to apply with a garden pump sprayer. After application, we watched the bees hover a minute and then decide to take up residence somewhere else.  Those that stuck it out, were dead in the morning. It is almost instantaneous! We also applied it to our barn and found it killed bugs that we didn't even know we had a problem with. Try this product= it works!!!

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  • 65 of 69 people found this review helpful:

    5 of 5 stars  Kills fleas
    By Sarah on 12/29/2006

    Demand CS kills fleas that we could never get rid of before. Dead on contact.

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  • 64 of 69 people found this review helpful:

    5 of 5 stars  Ants, crickets, and roaches no more...
    By Gregory in Tempe, AZ on 04/15/2009
    Verified Purchase

    We have tried several pest control companies to eradicate our recurring summer sewer roach problem to no avail. When the city treats the sewer drains and manholes, the roaches come into our yard and house. We also live in an area with crickets and tiny black ants. Nothing seemed to stop everything until we tried Demand CS. I read the label carefully and found that the strongest wipe out dose was for scorpions. I carefully measured, mixed, and sprayed the yard, block wall, foundation, windows and doors. The next morning was like a nuclear winter. Dead roaches, ants, and crickets everywhere. Our gardener cleaned them up like leaves. We now use the maintenance dose every three months and have not had a pest in a year. Awesome Stuff!!!

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  • 55 of 57 people found this review helpful:

    5 of 5 stars  This is magic!
    By Steve on 09/04/2008

    Bought a neglected house with roaches all over the yard. After spraying 24 gallons of Dursban over a two month period I was still seeing too many roaches to count at night. I put Demand CS down and the next morning had over 60 dead roaches, 30+ more the following day and in 1 month and only 2 applications I'm down to 1 or 2 a day outside (dead) and none inside in a month. I've been outside at 11pm on hot nights and not seen one live roach! This is magic.

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Most Recent Customer Reviews
  • 5 of 5 stars  Don't Waste $$ On Supermarket Insecticides and Exterminators
    By Alan in Shawnee, Kansas on 09/04/2017

    I purchased Demand CS for control of annoying spiders and ants in/around my house and basement. We used an exterminator at $100 per visit for a couple of years. I would have to tell him to put down adequate traps and insecticide to get reasonable control. The spiders and cobwebs would be back after a month. I wasn't pleased. So I purchased and used Demand CS as instructed. In two days I went to the basement and counted a dozen dead spiders on the floor. After four months, still no cobwebs. The residual effect is outstanding. I just treated again after 4 months. This will protect against spiders and pests throughout the winter. This product is very inexpensive. Using the recommended rate of 12ml per gallon on water. An 8 oz bottle should last me three years or more.

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  • 5 of 5 stars  Demand CS
    By Brenda in Loganville on 09/02/2017

    The best! Will last forever!

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  • 5 of 5 stars  Great Tools
    By Michael in Aiken SC. on 08/26/2017

    Applied as per instructions in grassy areas around home and several out buildings. No issues thus far.

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  • 5 of 5 stars  DoMyOwn and Demand CS, Both Great!
    By Collin in Chandler, AZ on 08/22/2017

    First, DoMyOwn is great, fast shipping and very informational. I've cross priced their products and they are the most competitive. Demand CS seems to be working perfect. Killed both scorpions and black widow problem I had at the house.

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  • 5 of 5 stars  Atomic Bomb
    By Marcos in Celina, TX on 08/18/2017

    This product is magical. I have a 12K sqft lot most of it with grass, we just moved 2 weeks ago and walking on the yard was impossible. Every step is bunch of crickets, spiders and chiggers. I've used the product few days ago, and the next day my yard looked like a post atomic bomb scenario, a lot of dead crickets, after a few days and I've saw none so far, really a joy, now that my kids can enjoy their backyard.

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  • 3 of 5 stars  Demand CS Review
    By Daniel in Flagstaff, Az. on 08/10/2017

    Product was ordered and used as solution to grasshopper infestation. Applied to 3/4 acre of various vegetation with hose end sprayer. Initial knockdown was better than expected. Unfortunately, application was followed shortly by seasonal rains. Residual action can't be fairly evaluated at this time. Using also for fly abatement in horse area. Not overly happy with knockdown or residual. Had a reason to contact customer service re:shipping and they were polite and professional but be sure you read the fine print about expedited shipping before paying extra. Bottom line:Expensive product with no better initial performance than Sevin. Will try again next year so that residual performance can be determined. Thank you

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  • 5 of 5 stars  Best overall
    By Daren in Algonac, MI on 08/09/2017

    This did what it was bought for (kill mosquitos) and more. It also killed spiders and aphids. All the critters that live around the house on the water. It also works for a house by the woods!

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  • 5 of 5 stars  Great Product & Great Company
    By Richard in Gilbert, Arizona on 07/31/2017

    Product will eliminate all pests and this will drive away the scorpions in your yard. The product is shipped the same day you order it and I have never had a product come that has leaked. Outstanding company service you can call them if you have a specific insect you need to eliminate.

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  • 5 of 5 stars  Bugs Be Gone
    By B. in Twin Falls on 07/24/2017

    Used inside and out--no more bugs. We had been over-run, in our newly purchased home, by earwigs. They are now gone--GREAT product suggested to us by our son who is also sold on it.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Fleas in lawn
    By Birgit in Tomball, TX on 07/12/2017

    I used this with the hose end sprayer to treat our half acre backyard and I am very pleased to see the fleas are gone. It was so extreme that we couldn't walk on the lawn without getting bitten by fleas and our dogs suffered although they are under flea prevention. Maybe the squirrels and possums are carrying fleas in? I highly recommend this product.

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Most Helpful Q&A's

11/12/2010 Laure

QWhat's the difference between Demand CS and Suspend SC?

ABoth products have an active ingredient that is classified as a synthetic pyrethroid, so they really are very similar in the way that they work.  Suspend SC contains the active ingredient deltamethrin and is a bit more versatile when it comes to bedbug treatments though as it can be sprayed on mattresses, carpets (spot treat only) and on furniture (crack and crevice only). Demand CS cannot. Demand CS contains the active ingredient lambda-cyhalothrin, and it is micro encapsulated which will make it last a little bit longer in outdoor applications.

99 of 108 people found this answer helpful.
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08/14/2009 Shanae

QIs Demand CS safe to use around children and pets?
What's the risk of transfer since Demand CS is capsulated? For instance, we have hardwood floors and we vacuum the floors and the baseboards. Can the insecticide be transferred from the vacuum to another surface (such as when vacuum rugs and couches) and increase the risk of contact?

AIf you are applying the product correctly, it should only be in cracks and crevices and other closed off areas. There should not be any issues with transfer effect like you are speaking of.  Once you apply Demand CS, the tiny microscopic balls of insecticide will bond to porous surfaces and will not be removed by general cleaning or vacuuming.  You should allow 30 minutes after application for the product to dry before cleaning or allowing children and pets to re-enter the room.

59 of 74 people found this answer helpful.
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04/26/2011 Sharon

QDoes Demand CS kill stinkbugs?

AAbsolutely.  Although stink bugs are not specifically on the label, the active ingredient Lambda Cyhalothrin in the Demand CS has shown great results on Stink Bugs. Many of our customers buy Demand CS for stinkbugs and the customer feedback has been great in regards to the results.

33 of 36 people found this answer helpful.
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11/07/2010 Curious

QShould I mix Demand CS with Suspend SC and Gentrol?
I've seen the ability to mix Gentrol with either Demand or Suspend, but can all 3 be mixed? Seems this would offer the best combo for heavy knock down, lingering kill, and nymph control to potentially pyrethin resistant bed bugs. Also, can you confirm the pyrethrin resistance rumored in bed bug populations?

AThere are indeed strains of bedbugs that are resistant to synthetic pyrethroid insecticides. Synthetic pyrethroids such as Suspend SC and Demand CS are the man-made versions of natural pyrethrin insecticides such as Exciter or Pyganic Pro. There is no valid reason to mix Suspend SC and Demand CS together, it would not make either product work better or produce better results, though it could make treated areas repellent to bedbugs lessening the effectiveness of the treatment. Both Demand CS and Suspend SC can be mixed with Gentrol IGR for a good knockdown and to break the growth cycle of the bedbugs and their eggs. If you do have a problem with a pyrethroid resistant bedbug population, you should use Phantom and Gentrol together. Phantom is not a pyrethroid, it is from a class of insecticides called pyrrole and there is no known resistance from bedbugs to this product. We also highly recommend that you use an aerosol with a straw attachment such as Phantom aerosol for the small cracks and crevices and a dust such as MotherEarth D for long lasting residual control.

27 of 33 people found this answer helpful.
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05/18/2011 Vangie

QIs spraying Demand CS to eliminate bed bugs in the house perfectly safe for my children under 8, and my dogs?

AUsing Demand CS indoors for bedbugs is safe as long as you follow the Demand CS product label. Be sure to have all children and pets out of the area while you are doing the application and they can return as soon as the treated area is dry.

21 of 27 people found this answer helpful.
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Most Recent Customer Questions

08/16/2017 John

QIs Demand CS the best to add to Talstar P?
I currently use Talstar P both inside and out, with decent results. I still have some small black flies, indoors. Maybe fungus gnats or a fruit fly, I'm not sure. Is this the right thing to mix with my Talstar?


No, it is not recommended that you mix two insecticides together. This would essentially be doubling up on the product and may cause the adverse effect.

A good option would be to use PT Alpine Pressurized Fly Bait in the area where you are having an issue. Apply inside all garbage receptacles, underneath garbage lids, inside recycling bins or receptacles, and other labeled areas that will help prevent flies from being a nuisance.

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02/18/2017 Steven from Safford

QWhat is the shelf life of Demand CS after it is mixed?


Demand CS should be used within 24 hours of mixing the solution. After that the product starts to lose its effectiveness. 

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02/11/2017 Wendy from Columbus

QHow much Demand CS do I mix per gallon of water to kill and prevent roaches?


Demand CS is mixed at 12 ml per gallon of water per 1,000 sq ft for cleanout, 24 ml for a severe infestation and 6 ml per gallon for maintenance. Please take a few moments to review our article on How to Get Rid of Roaches for more information on how to implement a successful eradication program.

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02/09/2017 Joseph from Cinnaminson, Nj

QWill Demand CS control spider mites on dahlias?


Yes, Demand CS an be used for spider mites on dahlias. 


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11/02/2016 Debbie from Montgomery, Tx

QWill Demand CS hurt trees including Japanese blueberry trees?


Demand CS will not harm trees. Please be aware that it's not labeled to be applied to edible vegetation. 

3 of 3 people found this answer helpful.
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09/15/2016 Dave from Winnemucca, Nv

QThe ph of my water is 7.5 do I need to use a buffering agent when mixing with Demand CS?
It specifies a ph of 5 to 7 in the tank mixing Instructions (Turf and Ornamental Dilutions) on the product label. I use the product for perimeter treatments on the outside and inside baseboards of structures.


The manufacturer recommends that you use a buffering agent when the pH is not between 5-7 per the product label instructions when applying Demand CS.

2 of 2 people found this answer helpful.
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09/13/2016 Dean from Pampa, Tx

QWill Demand CS kill Harvester Ants?
They make a bare spot in the yard.


Demand CS will kill ants that have come into contact with the areas treated with the product but it will not reach the nesting locations. Harvester ants should be left alone if they are not a direct threat or nuisance. They provide food for many animals, and also help distribute grass seed, and are overall beneficial. However, if control becomes necessary, you can easily get rid of harvester ants using the right professional products.Granular ant baits are the best choice to control harvester ants. Nearly any granular ant bait will work, but look for those labeled for use on harvester ants.Products with abamectin, like Advance 375A Select Granular Ant Bait, bifenthrin, like Talstar PL Granules and hydramethylnon, like Maxforce Complete Granular Bait, among many others, will all be effective against harvester ants. Always follow the label instructions carefully, but 2-5 tablespoons of granular bait scattered over the colony’s central opening should be sufficient to control the colony. For non-chemical control, destroy nests and habitat with regular mowing and other lawn maintenance. 



1 of 1 people found this answer helpful.
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09/05/2016 Scooter from Bulls Gap, Tn

QDose Demand CS kill bed bug eggs?


Demand CS would not kill bed bug eggs as it is not a contact kill.  However Bedlam and Bedlam Plus are labeled to kill both Bed Bugs and their eggs.  You should note that even products that are labeled to kill bedbug eggs are not able to kill 100% of the eggs and you will still be required to do follow up treatments every 7-10 days until no further evidence (bites, blood stains, cast skins, fecal deposits) of bedbugs is noticed.

1 of 2 people found this answer helpful.
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08/26/2016 Scott from Two Harbors, Mn

QIs Demand CS able to be used in an air exchanger unit to kill hornets?
An exterminator used Demand CS to kill hornets living in part of my house's air exchanger unit. Do I have to worry about air quality issues or hazards?


The Demand CS label does not state that this product can be used in any type of air exchange unit. They do advise that Demand CS is not able to be used in any type of electrical device to due to the risk of electric shock. We recommend to contact the manufacturer Syngenta direclty at 1-866-796-4368 for answers.

0 of 1 people found this answer helpful.
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08/20/2016 Mark from Milwaukee, Wi

QWhat should I clean my back pack sprayer with after using Demand CS in it all summer long?


You can use soap and water or mineral spirits to clean out your backpack sprayer after using Demand CS with it. 

0 of 1 people found this answer helpful.
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