Demand CS Insecticide

4.5 out of 5 stars 472 Reviews | 369 Q&A

Demand CS - CASE - (6 x Quart)
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Average Rating

4.5 out of 5 stars Rating: 4.7

472 Reviews | 369 Q&A

Product Overview

Demand CS Insecticide delivers fast knockdown and long-lasting control of over 30 common pests in homes, lawns, and commercial settings. Its innovative microencapsulated formula with iCAP technology clings to surfaces and gradually releases the active ingredient lambda-cyhalothrin, making it effective weeks after application. Trusted by professionals and DIY homeowners alike, Demand CS offers powerful results in an easy-to-use formulation. 

  • Kills over 30 pests, including ants, spiders, mosquitoes, and cockroaches 

  • Up to 90-day residual control with iCAP™ technology 

  • Low-odor, water-based formula for indoor and outdoor use 

  • Flexible application rates for spot, perimeter, and broadcast treatments 

Features and Specs

Active Ingredient lambda-Cyhalothrin 9.7%
Target pests Ants, Aphids, Bed Bugs, Beetles, Boxelder Bugs, Carpenter Bees, Carpet beetles, Centipedes, Chiggers, Chinch Bugs, Clover Mites, Cluster flies, Cockroaches, Crickets, Earwigs, Fleas, Flies, Grasshopper, Grubs, Gypsy Moth Larvae, Japanese Beetles, Midges, Millipedes, Mites, Mole Cricket, Mosquitoes, Scorpions, Silverfish, Spiders, Termites, Thrips, Ticks, Wasps, Whiteflies and others
* See label for complete list
For use in Commercial & Residential Indoors (Crack & Crevice Only) & Outdoors: Lawns, Ornamental Trees & Shrubs, Agricultural & Industrial Buildings; Parks, Recreational Areas, Athletic Fields and others
* See label for complete list
Application * See label for complete applications instructions
Pet safe Yes, If used as directed on Label - Safe when Dry
Yield Each 8 oz bottle makes 8 - 40 gallons (mixed at 0.2 to 0.8 oz/6 to 24 ml per gallon of water)
Each Qt makes 40 - 160 gallons
Formulation Professional Product
Group 3A Insecticide
NOT FOR SALE TO NY, VT (Restricted To Licensed Applicators Only)
Shipping Weight 0.66 lbs
Manufacturer Syngenta (Mfg. Number: 73654)
EPA Registration 100-1066

Details

Demand CS is a professional-grade insecticide that provides immediate and long-term pest control.  It contains 9.7% lambda-cyhalothrin, a synthetic pyrethroid that kills a broad spectrum of pests on contact or through ingestion, and an innovative microencapsulation technology formulation. 

 

How Demand CS Works 

Demand CS uses iCAP™ technology, a microencapsulation process that suspends thousands of capsules containing the lambda-cyhalothrin active ingredient. When pests encounter treated surfaces, these capsules break open on impact or are absorbed through the exoskeleton, killing insects quickly. The varying capsule sizes ensure some release immediately, while others provide long-lasting residual control for up to 90 days. Whether you're dealing with ants inside your kitchen, mosquitoes around your lawn, or spiders in your garage, Demand CS works quickly and keeps working longer than traditional insecticides. 

 

Key Features of Demand CS Insecticide 

  • Kills over 30 pests, including mosquitoes, ants, spiders, and cockroaches. 

  • Advanced microencapsulated technology provides long-lasting residual control for up to 90 days with extended protection on treated surfaces. 

  • Virtually no odor and non-staining, ideal for indoor use. 

  • Safe for use around pets and people once dry. 

  • Economic mixing rate. One quart makes up to 160 gallons of solution. 

  • Protects active ingredients from UV exposure, pH extremes, and porous surfaces. 

  • Diluted solution resists settling and ensures consistent application.  

  • Compatible with most insecticides, IGRs, and tank additives. Always add Demand CS last when mixing. 

  • Convenient squeeze-and-pour measuring container simplifies product mixing.  

  • No harmful effects on earthworms or beneficial microorganisms when used as directed. 

 

Target Pests Controlled 

Demand CS effectively kills a large variety of yard, home, and ornamental pests, including but not limited to:  

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. 

See the full list of insects controlled by Demand CS listed on the product label. 

 

Where to Use Demand CS 

Demand CS Insecticide is approved for use in: 

  • Homes, apartments, and residential lawns 

  • Restaurants, food-handling establishments, and hospitality sites 

  • Schools, healthcare facilities, and office buildings 

  • Warehouses, garages, and storage units 

  • Exterior spaces, including foundations, eaves, and ornamental landscapes 

 

Application Guidelines for Demand CS 

 Always read the product label and follow the instructions provided. 

 

Indoor Applications 

  • Use Demand CS only as a crack and crevice treatment indoors. Reapply every 21 days if needed. 

  •  Apply along baseboards, behind appliances, around plumbing entry points, inside wall voids, and in other pest hiding spots. 

  • Do not apply to exposed surfaces or areas with food contact.  

  • Always keep children and pets out of the treated area until the spray has dried completely. 

  • Foam use: Demand CS may be converted into foam for the treatment of voids in walls and structural areas. 

  • For bed bug control: 

  • Mix at 0.2–0.4 fl. oz. per gallon of water 

  • Apply only to cracks and crevices 

  • Do not apply to mattresses, bedding, or furniture where people sit or lie down 

 

Outdoor Applications 

  • Apply Demand CS along the building foundation and around entry points such as doors, windows, vents, eaves, and utility openings for outdoor pest control. 

  • Demand CS is also effective for use on lawns, shrubs, and ornamental plants where pests rest or breed. 

  • Avoid treating surfaces recently exposed to residual insecticides to ensure maximum product effectiveness. 

  • 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. 

  • 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. 

 

Application Rates (Mixing Ratios) 

Mix the following amount of Demand CS per 1 gallon of water, depending on the level of infestation: 

  • 0.2 fl. oz. (6 mL) – 0.015% dilution 
    For light infestations, general maintenance, and common crawling pests 

  • 0.4 fl. oz. (12 mL) – 0.03% dilution 
    For moderate infestations 

  • 0.8 fl. oz. (24 mL) – 0.06% dilution 
    For heavy infestations, clean-out treatments, or control of spiders, scorpions, etc. 

 

Infestation Levels & Product Yield 

  • 8 oz. bottle yields 10-40 gallons of finished spray solution, depending on dilution rate 

  • 32 oz. (quart) bottle yields 40-160 gallons of finished spray solution 

  • Product Coverage: 

  • At the lowest rate (0.2 fl. oz./gallon), a 32 oz. bottle treats up to 160,000 sq. ft. 

  • Higher rates reduce total gallons accordingly for stronger infestations 

 

Tips for Maximum Effectiveness 

  • Use a hand pump sprayer: A 1-gallon pump sprayer offers the best control for precise applications both indoors (crack and crevice) and outdoors (perimeter and foundation). 

  • Keep children and pets safe: After application, wait at least 30 minutes before allowing children or pets to re-enter treated indoor areas. Always allow surfaces to fully dry. 

  • Plan around the weather: For outdoor applications, apply when rain is not expected for at least 24 hours. This ensures Demand CS adheres to treated surfaces for maximum residual effect. Some turf or ornamental applications may benefit from light irrigation—check the label for guidance. 

  • Tank mixing tip: If mixing with other insecticides or products, add Demand CS last to the spray tank to ensure proper dilution and stability. 

  • Boost with an insect growth regulator (IGR): For complete life-cycle control of pests like fleas, use Demand CS in combination with NyGuard IGR or a similar IGR product. This helps eliminate both adults and immature stages. 

  • Storage matters: Store Demand CS in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain product integrity and shelf life. 

 

Why Choose Demand CS? 

Trusted by pest control professionals and homeowners alike, Demand CS Insecticide offers unmatched residual pest control, flexibility in application, and effectiveness across a wide range of environments. Whether you're treating a backyard or a commercial facility, Demand CS delivers consistent, reliable pest protection. 

Compare to: Equil Lambda 9.7 CS, Cyzmic CS, Cyonara 9.7, Avesta CS 
Review Search   
Sort Reviews
  • 5 of 5 Stars

    Excellent product

    By Eric 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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    255 of 267 people found this review helpful

  • 5 of 5 Stars

    Great stuff!!

    By Lauren 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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    151 of 155 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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    142 of 148 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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    124 of 133 people found this review helpful

  • 5 of 5 Stars

    Ants, crickets, and roaches no more...

    By Gregory 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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    124 of 130 people found this review helpful

See all 472 customer reviews

Questions & Answers

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Sort Questions
Q
What's the difference between Demand CS and Suspend SC?
A
Both 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.

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237 of 262 people found this answer helpful

Q
Is 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?

A
If 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.

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179 of 222 people found this answer helpful

Q
Does Demand CS kill stinkbugs?
A
Absolutely.  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.

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84 of 92 people found this answer helpful

Q
Is spraying Demand CS to eliminate bed bugs in the house perfectly safe for my children under 8, and my dogs?
A
Using 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.

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75 of 94 people found this answer helpful

Q
Should 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?

A
There 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.

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63 of 74 people found this answer helpful

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Demand CS Insecticide 4.5 out of 5 stars Rating: 4.7 (472 Reviews / 369 Q&A)

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