Demand CS

$36.91 - $943.28

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4.5 out of 5 stars Rating: 4.7

229 Reviews | 147 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.

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 3 Insecticide
Manufactured By: Syngenta

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   192
4 stars   22
3 stars   5
2 stars   5
1 star   5

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Average Customer Rating
4.5 out of 5 stars (229)

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Most Helpful Customer Reviews
  • 88 of 94 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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  • 63 of 63 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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  • 49 of 53 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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  • 46 of 50 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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  • 42 of 43 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
  • 4 of 5 stars  So far so good
    By Samuel in Wichita on 06/25/2016

    There was a noticable decrease in bugs since i sprayed. I am waiting to see how long it will last.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  BEST PRODUCT
    By Jesus in HESPERIA CA on 06/19/2016


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  • 5 of 5 stars  Great Product
    By K in Saline, MI on 06/13/2016

    Excellent product! Fast shipping! Happy with everything!

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  • 5 of 5 stars  Where did the spiders go?
    By Dc in Portland, OR on 06/09/2016

    Moved in to a new house. Arachnophobic wife was finding 1-2 spiders a day. Stuff we purchased from Home Depot did nothing. Ended up spraying inside and out of with Demand CS. All of our pets are still alive. My family is still alive. Haven't seen a living spider since.

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  • 5 of 5 stars  Wonderful!!!
    By Rhonda in Alabama on 06/05/2016

    I used immediately after recieving the demand cs. I was totally satisfied with the product. It exceeded my expectations by far. It worked immediately. My yard has been overrun with chiggers and ants and fleas. I have thrown money away trying to get rid of all these pest. I am so happy to walk in my yard without being bit by some little pest. My dogs are much happier too.

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  • 5 of 5 stars  Great Product
    By Mike in York, PA on 06/02/2016

    I was having issue with gnats in a commercial building and as soon as I made up a couple gallons of Demand and started spraying, I seen a difference in the amount of gnats within about 48 hours.

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  • 3 of 5 stars  Heavy Mosquito in GA
    By Scott in Atlanta, GA on 05/31/2016
    Verified Purchase

    I purchased Demand and NyGuard combination to spray for a heavy mosquito population in the Atlanta area. I sprayed every 20-30 days last fall and it seems to work okay however this spring it's been ineffective. I've had a professional service (at $60/treatment) coming once a month and I'm spraying once a month during the mid-points and still get torn up with bites early morning and late evening. Switching to Talstar and NyGuard to see if that's better.

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  • 5 of 5 stars  Great item!
    By Rick in Kingsport, TN on 05/23/2016

    This is a great product to use inside and outside. Keeps killing longer than it claims on the label. I buy it a quart at a time.

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  • 5 of 5 stars  Best Product on the Market for the Intended Usse
    By Ted in Bullard, Texas on 05/22/2016

    I have used Demand CS for over ten years and find it to be the only product that effectively rids areas of insects as advertised. Many products claim to do so, but as a huge rural property owner with many structures on it, this is the one that works. If I put my name to it, it is worth it.

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  • 0 of 2 people found this review helpful:

    4 of 5 stars  Demand CS
    By John in Burkesville Ky. on 04/14/2016

    Product worked well. Had to add a little more dye than the instructions called for. Grass was all very green and had to adjust to be able to see dye well. Will buy more next time I spray.

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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.

61 of 63 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.

31 of 38 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.

20 of 21 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.

16 of 17 people found this answer helpful.
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04/29/2011 Jen

QWhat is the best product for killing box elder bugs?

AWe have numerous products that are labeled for killing box elder bugs that work excellent.  Demand CS is definitely one of our most popular and will work great on box elder bugs.  In addition, Demand CS is labeled for almost any other insect you could have an issue with and can be used safely indoors as well as outdoors.  It also has a long residual which lasts up to 90 days.  It would be a great choice.

12 of 14 people found this answer helpful.
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Most Recent Customer Questions

06/01/2016 Jim from Northern, Wi

QWill Demand CS on the outside of the house work for cluster flies?
How do I get rid of/prevent cluster flies (hundreds) They do die......but "after" they are in the house.


Demand CS is not a contact kill so once a fly contacts a treated area it could still get inside before it succombs to the insecticide, but that does mean that it is working.  If the cluster flies have already made their way indoors they will be harder to control because they usually hide in a wall void or other inaccessible area and are only visible when the house warms up. If the cluster flies are in an attic or drop ceiling or other dark area, a fly light would do a great job controlling the population. Using small fly lights such as the FlyWeb Fly Light in the house would also help to catch the flies. Spray Talstar directly on baseboards, window frames, door frames, and places where utilities (pipes, wires, cables) enter in to the building and any other crack, crevice or gap where insects can enter.  We also have a great guide here on "How to Get Rid of Cluster Flies" that might help.

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12/02/2015 Stephen from Des Moines

QCan Demand CS be applied using the Solo 451 Sprayer?
I have noticed that Cy-Kick cannot, so I'm looking for a different insecticide.


You can use either Cy-Kick CS or Demand CS in a Solo 451 Backpack Sprayer. For Demand CS, use 0.2 - 0.8 fl. oz. of concentrate per gallon of water or per 1,000 square feet. Keep in mind that a mist blower like the Solo will apply product very quickly, so be sure you are using correct use rates when applying product over large areas. You should also be sure to follow all label directions and precautions, such as applying when conditions are calm.

3 of 3 people found this answer helpful.
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11/26/2015 Rojana

QDoes Demand CS kill mold?
Does Demand CS kill mold? we are facing a mold issue in guest's room and Pest control company used Demand CS to spray all rooms, just wanted to know if this chemical kill mold?


No, Demand CS is not labeled to kill mold. It is only an insecticide.

The only mold remediation product we sell is Boracare with Mold-Care, which can be used on raw structural wood for mold remediation and prevention.

0 of 1 people found this answer helpful.
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11/19/2015 Anonymous

QCan I grow anything in my vegetable garden if someone sprayed Demand CS at the foundation?
I have a small vegetable garden that surrounds the foundation of my house. Demand was inadvertently sprayed around the foundation. This years vegetables have already been pulled up. Will the earth be usable next year? Can I drench it out?


We would recommend contacting the manufacturer of Demand CS directly to see if it would be advisable to plant anything in the area that was treated, or the best method to remove the product from the soil, if possible.  You can reach Syngenta at 866-796-4368.

3 of 4 people found this answer helpful.
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11/14/2015 Walter

QPlease recommend an insecticide for wingless moths that crawl up maple trees.
Wingless moths crawl up my maples in late fall and lay thousands of eggs. Eggs hatch in spring. Canker worms defoliate trees. I need an insectide I can spray on the trunks and will kill the moths as they come in contact with it.


Spring is the best time to treat to try and grasp better control of the moths. If temps are above 50 degrees now, you can try and use Dormant Oil. This will suffocate them once they come in contact with the solution. Malathion would be a great product to use in the Spring to treat the eggs.

2 of 2 people found this answer helpful.
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10/07/2015 Holly from Arizona

QIs it more potent to mix Demand CS with ExciteR to kill scorpions?


Demand CS can be mixed with ExciteR. ExciteR is a synergist and will provide a faster knockdown of the scorpions. Be sure to spray the areas where you have seen activity so that the scorpions walk through it.

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09/29/2015 Bianca from Toronto, Ontario

QHow do I safely clean up Demand CS that has been sprayed on the floor instead of in cracks/crevices?
We used Demand CS to control carpet beetles but we incorrectly sprayed the product along the floor, about a foot from the wall, around the entire perimeter of our condo (rather then just using as a crack/crevice treatment). What is the best way to clean our floor to remove the product? We are concerned about our little dog walking on the product.


Demand CS can be wiped up with hot water and soap. The product is safe for your dog even if over sprayed on the floor after it has completely dried.

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09/27/2015 Caroline from West Virginia

QDoes Demand CS NOT work for yellow jackets?
I'm wondering whether this is the wrong pesticide, or if the bottle I have is expired. Been spraying the stuff into place where many, many yellow jackets are entering and exiting (I think they must have a nest inside a pipe on the side of our house), as well as spraying directly on the insects, and it has zero effect. Scores of healthy yellow jackets before, during, and after spraying! I've never seen an insecticide sprayed directly on insects that didn't seem to affect them at all. Bewildered. Any suggestions?


Demand CS should kill Yellow Jackets after they come in contact with it, however it is not specifically labeled for them. This would not be our number one recommendation for Yellow Jackets because it can take some time to kill them. Please check out our article "How to Get Rid of Yellow Jackets". If you can get to the openings where the yellow jackets are coming in and out from, we highly recommend applying a dust like Tempo 1% Dust and when the yellow jacket comes in contact with it, the dust will transfer from yellow jacket to yellow jacket and kill off the entire nest.

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09/26/2015 Ed from Philadelphia, Pa

QDoes Demand CS kill lawn grubs?


Demand CS is not labeled for grubs but we do offer products that are effective. Please take a few moments to review our article on How to Get Rid of Grubs for the best results.

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09/26/2015 Randy from Bowling Green Mo

QWhat pesticide is best for cluster flies outdoors?
Have extreme amount of cluster flies behind the siding of my house. This is the second year in a row this has happened.


Demand CS would be a great choice. It is labeled for Cluster Flies and besides using it around the perimeter of your home, you should apply it around window frames, door frames and other entry points where Cluster Flies gather. Please be sure to follow the label instructions. 

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