Demand CS

$36.91 - $943.28

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4.7 Rating: 4.7

200 Reviews | 133 Q&A 


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Demand CS bottle (8 oz.)

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Demand CS - Quart quart (32 oz.)

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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: Large variety of yard, home and ornamental pests. Scroll down for complete list.
For use in: Indoors (Crack and crevice only), outdoors.
Application: Always read the label for complete use instructions and restrictions.
Pet safe: Yes, when dry.
Yield: 24 - 100 plus gallons
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.

Demand CS Target Pests

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

PEST CONTROLLED WITH DEMAND CS: • 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 of Demand CS Insecticide

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%

Demand CS 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 for Demand CS:

  • 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.

Demand CS is for 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.

See complete product label for additional instructions on outdoor applications.

Demand CS Features

  • 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 Demand CS

  • 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   166
4 stars   20
3 stars   4
2 stars   5
1 star   5

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Average Customer Rating
4.7 star rating (200 reviews)

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Most Helpful Customer Reviews
  • 72 of 78 people found this review helpful:

    5 of 5 Stars  Excellent product
    By Eric in Scottsdale, AZ on June 9, 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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  • 50 of 50 people found this review helpful:

    5 of 5 Stars  Great stuff!!
    By Lauren in Gates, NC on April 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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  • 41 of 43 people found this review helpful:

    5 of 5 Stars  Ants, crickets, and roaches no more...
    By Gregory in Tempe, AZ on April 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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  • 36 of 39 people found this review helpful:

    5 of 5 Stars  Kills fleas
    By Sarah on December 29, 2006

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

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  • 34 of 35 people found this review helpful:

    5 of 5 Stars  This is magic!
    By Steve on September 4, 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  Demand CS. The best...
    By Ricardo in California on July 11, 2015

    This is the first time I use Demand and it has been the best pest control I ever used. The ants come out once, then gone. I use it around the house for protection too and wow. Nothing in side the house, that's what I was looking for... Thank you....

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  • 5 of 5 Stars  Great product
    By Ed in Janesville MN on June 30, 2015

    Have used for a couple years now. No spider webs on the deck railing or on our cedar house. Looks great all summer. Have even used it for bug control on the lawn. No more bites.

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  • 5 of 5 Stars  Great for Carpenter Bees!
    By Jim in Gainesville, GA on April 17, 2015
    Verified Purchase

    We started pre-spaying with Demand for the first time last year and have practically eliminated damage from the carpenter bees. Prior to spraying with Demand, we had numerous carpenter bee holes and lots of sawdust, not to mention the following woodpecker damage from their searching for the carpenter bee larva. Just this morning, I recommended Demand again to a friend. It works great!

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  • 5 of 5 Stars  pesticides
    By Jason in Fort Myers, Florida on April 16, 2015
    Verified Purchase

    the product was as advertised. The company sent me an email notifying me that the product had been shipped. I got the product within a couple of days and I'm very pleased with it.

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  • 1 of 1 people found this review helpful:

    5 of 5 Stars  Best in the West!
    By James in Las Vegas, NV on March 4, 2015
    Verified Purchase

    If you need something to rid yourself of bugs, especially if you live in SCORPION TERRITORY, this is the VERY BEST to use, Demand CS. Works like a CHARM!!

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars  Demand CS
    By Vicki in Clinton, IL on January 25, 2015
    Verified Purchase

    It is the best spider eliminator on the market . We had tried several products before Demand CS and the spiders were back in a few weeks. With Demand CS, we sprayed the outside the house in the spring and the effects would last all summer.

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  • 5 of 5 Stars  Fast Knockdown
    By David in Austin on November 24, 2014
    Verified Purchase

    I had a problem with millipedes--would usually see half a dozen a night crawling across the floors. After a crevice treatment along the baseboards, I am finding only dead ones.

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  • 1 of 1 people found this review helpful:

    5 of 5 Stars  Mr
    By Jerry in Waynesboro, TN on November 16, 2014

    this stuff is great, sprayed the exterior of my house and barn to get rid of the Asian Beetles, they will land and walk around on the surface that was sprayed and will die before morning. you do have sweep them up. This also kills more of the insects listed in your bug killers that you buy at your big box stores. Mix the proper amount with water in a sprayer and spray. The 8 oz. package will last a very long time, I mix 12 ml (.4 oz.) to a gallon of water.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars  Miracle spray for box elder bugs!
    By Dana in Salt Lake City, Utah on October 23, 2014
    Verified Purchase

    We have a HUGE tree in our front yard that has Box Elder Bugs! I have had them in homes in the past, and had professionals come and spray and they would still find their way inside. They are impossible to get rid of. We found this spray, and we find them dead all over outside, and dead in the windows, but we never see them live in the house! This stuff really is a miracle treatment for those darn bugs. I would recommend it to anyone who has them. Even though we bought if for the Box Elder Bugs, I am assuming it works for other bugs and spiders because we never see any of those in the house either.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars  Demand for Scorpion Control
    By Dennis in Mesa AZ, 85212 on October 16, 2014
    Verified Purchase

    I have been using Demand for about 2 years now. The first year I sprayed at a minimum of once every three months, except for winter months. I saw a noticeable decrease in scorpion activity. This spring (April 2014) I sprayed again. From that time, till early Oct, I found one (1) live scorp in my garage. I found numerous dead scorpions in the garage, and around the yard in that time. To say I am very happy with this product would be the understatement of the year. All my friends with scorp problems now know about Demand. I live in Mesa AZ, and having pest control companies knock on my door is a weekly event. I tell them I treat my own yard. They ask what I use. When I tell them, they invariably say, "Oh, that's what we use too." I will continue to use it as long as they make it, lol.

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Most Helpful Q&A's

November 12, 2010 Laure asked:

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.

45 of 46 people found this answer helpful.
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August 14, 2009 Shanae asked:

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.

22 of 27 people found this answer helpful.
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April 26, 2011 Sharon asked:

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.

16 of 17 people found this answer helpful.
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November 7, 2010 Curious asked:

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.

9 of 10 people found this answer helpful.
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April 29, 2011 Jen asked:

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.

9 of 11 people found this answer helpful.
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Most Recent Customer Questions

July 31, 2015 David from Prairie View, Texas asked:

QWill Demand CS get rid of millipedes in Texas?


First you want to

  • Repair cracks, crevices, and gaps around windows, doors, pipes and wires with sealant or caulk
  • Makes sure the screens and door sweeps on windows and doors are tight-fitting

Then you want to flush out the area with an adulticide like:

CB Air Devil HPX is a cypermethrin residual contact kill aerosol that HPX is specially formulated to clear out large numbers of target insects fast, and provides up to 3 months of protection. For treatment of millipedes, spray CB Air Devil around doors and windows and other areas where millipedes may be found or where they may enter premises. Spray baseboards, storage areas and other locations. Repeat as necessary.


Next you want to do the perimeter treatment indoors and out.

Demand CS, and Suspend SC, are residual liquid formulation pesticides that are added to water and applied with a low-pressure sprayer can provide a powerful residual that continues working for 4 to 8 weeks following application. These residual liquid formulations can be sprayed along the outside perimeter of the home (especially under and around eaves, decks, patios, and window shutters), and inside along baseboards, in cracks and crevices, and other potential millipede harborages. You will know the residual is working because you will begin finding only dead millipedes rather than live ones.

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July 21, 2015 Bill from Goodyear, Az asked:

QMy insectide company sprayed back yard with Demand CS and some got into my swimming pool. It is safe to swim?


Since Demand CS is not labeled to be applied to pools, we would recommend to air on the side of caution and contact the manufacturer. You can contact Syngenta at 866-796-4368

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July 13, 2015 Cathy from Eagle, Id asked:

QWill Demand CS kill grasshoppers that have invaded our flower beds?


Demand CS will kill grass hoppers that come in contact with it. Dilute at 8 mL per gallon of water.

1 of 1 people found this answer helpful.
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June 22, 2015 Sharon asked:

QWill Demand CS kill beetles if I apply it to my roses?

A Yes, Demand CS is labeled to control beetles and can be applied to roses, but you do want to avoid applying it directly to the blooms.  

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June 10, 2015 Carl from Queen Creek, Az asked:

QI have been treating my home with Demand CS and Delta Dust; why am I still getting a lot of scorpions?
Any ideas on how to get rid of them???

A When treating for scorpions, the product needs to be sprayed in the area where they are. Generally speaking, scorpions are drawn to dry areas, and their main sources of food are usually small insects such as crickets and spiders. Keeping your home free of these insects will make it much less likely that scorpions will be a problem, so general pest control is always advisable. If they do get into your home, they are usually found in secluded dry areas such as closets and garages. They have also been known to hide in piles of clothes, particularly ones that have not been moved recently. Eliminating these hiding spaces will go a long way in making your other control efforts more effective. Because they are more susceptible to the negative effects of a scorpion sting, it is important to ensure that any area where your children and pets might play or live is treated thoroughly for these pests. Although, you should be sure to follow the manufacturer’s instructions on how long to separate them from the area after it has been treated. As always, feel free to e-mail or call us with any concerns or questions.

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June 7, 2015 Sarah from Oklahoman City, Ok asked:

QHow long does Demand CS last once it is sprayed on the lawn?


Demand CS has an outdoor residual of 30 days. You should mow your lawn first one to two days prior.

1 of 1 people found this answer helpful.
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May 27, 2015 Kelly from New Jersey asked:

QCan you mix Demand CS and Transport Mikron together for application?

A There is no valid reason to mix Transport Mikron and Demand CS together, it would not make either product work better or produce better results, though it could make treated areas repellent to insects which lessening the effectiveness of the treatment. You should choose one product, read the product label and follow it closely. 

1 of 1 people found this answer helpful.
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May 27, 2015 Kim from Kankakee Illinois asked:

QWhat is the ratio for clover mites using Demand CS in a half gallon sprayer?

A Demand CS should only be mixed at 6-12ml per one gallon of water per 1,000 sq ft per the product label.

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May 24, 2015 Bruce from Birmingham, Al asked:

QWill Demand CS get rid of wasps around house?

A Demand CS is labeled for eradicating wasps. Concentrates are not considered to be contact kills, especially for wasps.  Even if you got close enough with a hand pump sprayer, which do not spray that far, the spray would not kill a wasp fast enough.  They would die, but not right away.  You can spray surfaces so when bees land on the surface they will pick up the spray and die, but they will not die right away.  The only product that provides a fast knockdown of larger flying insects like wasps and hornets is Wasp Freeze, which comes in an aeorosl can but it shoots over 15 feet so you can knock them down from a safe distance. Demand CS will leave a 30 day residual to the treated surfaces. Most folks do not want to have to spray down every bee or wasp in a nest with the wasp and hornet spray so they apply a dust such as Tempo Dust or Delta Dust which will knockdown even those insects that usually do not come out of the nest. The nests should be treated in the evening when the wasps are the least active for your safety.

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May 18, 2015 Christine from Montreal Quebec Canada asked:

QALL my cats got CHRONIC asthma from living in an apartment that was treated for bed bugs.
I am moving again for my cats since they have asthma. Now the roofs ongoing leak is causing my cats to have way worse than breathing difficulties. I am moving found a place..was treated for bed bugs 3 years ago so landlord says w this long is it active.

A We recommend that you contact the landlord or the company that treated for the specific products that were applied. You then can check with the manufacturer of the products for safety and residual information. It would be a good idea to check with your local vet on what is safe for your cats and what is not with them having breathing issues. 

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