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🛡️ Defend your space with precision — pests don’t stand a chance!
Syngenta 73654 Demand CS is a potent, water-based insecticide concentrate designed to control over 30 common pests including ants, spiders, and bed bugs. Each 8 oz bottle mixes to treat up to 40 gallons, making it an economical and versatile solution for both indoor and outdoor pest management. Trusted by thousands with a 4.6-star rating, it offers professional-grade protection in a compact size.







| ASIN | B002Y6BC1O |
| Active Ingredients | Lambda-Cyhalothrin |
| Best Sellers Rank | #950 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5 in Insect & Pest Repellent Spray Concentrates #89 in Pest Control Traps |
| Brand | Syngenta |
| Brand Name | Syngenta |
| Customer Reviews | 4.6 out of 5 stars 5,816 Reviews |
| Item Form | Liquid |
| Item Type Name | Insecticide |
| Item Weight | 10 ounces |
| Liquid Volume | 8 fluid ounces |
| Manufacturer | SYNGENTA |
| Model Number | 73654 |
| Part Number | 73654 |
| Specification Met | Cs |
| Target Species | Insects |
| UPC | 702941707832 |
| Unit Count | 8 Fluid Ounces |
J**H
Love it!!!!
Demand CS is easy to mix and apply, provides effective insect control, and a little goes a long way. The 8-ounce bottle is a convenient size for treating around the home. I use this all the time and I will never buy anything else for bugs inside and around the house. Overall, a reliable and economical product when used according to the label directions. It is so versatile
K**Y
I don’t understand the bad reviews. This stuff works!
I am SUPER impressed. I live in a ground floor apartment surrounded by trees and greenery. Especially in the summer, I deal with ants and spiders. I tried everything natural first (peppermint, citrus, vinegar etc) those things only worked temporarily. Several ants would be back the very next day or even a few hours later. I got this insecticide as a last resort but I should’ve gotten it sooner. It worked IMMEDIATELY! I sprayed the exterior perimeter of my apartment and I have not seen a single ant or spider in weeks!! If you’ve tried everything and nothings worked, give this a go! Don’t be disappointed by the size of the bottle. Just carefully read the instructions as it is intended to be diluted. I am so glad I purchased this.
M**Z
It works, no doubt about it
This stuff is magic, I sprayed my house 2 1/2 weeks ago and I’m still finding bugs dying around outside. There’s no smell to this stuff. It’s easy to dilute. I started with 24ML and I’m extremely happy with this product!!
C**N
Wish for better instruction
A great product that would benefit from clearer instructions. I’ve used a variety of consumer and professional pest control products over the years, and Demand CS has easily been one of the most effective. The results were noticeable within days, and it provided long-lasting control of the insects I was targeting. The micro-encapsulated formulation seems to hold up well outdoors and continues working long after application, which means fewer reapplications and better overall value. It is also low odor and doesn’t leave obvious staining when used as directed. Demand CS is labeled to control a wide range of common pests and is designed for both indoor and outdoor use, making it a versatile product for homeowners and professionals alike. My biggest criticism is the instructions. The product itself is excellent, but the dilution rates, application recommendations, and label language can be confusing for someone who isn’t already familiar with professional-grade insecticides. I found myself double-checking videos and online resources to make sure I was mixing and applying it correctly. A simpler quick-start guide with common use cases, clearer mixing examples, and more homeowner-friendly instructions would make this product much more approachable. That said, once you understand how to use it, Demand CS performs exceptionally well. The bottle goes a long way, treats a large area, and delivers results that have been noticeably better and longer-lasting than many big-box store alternatives. If you’re willing to spend a few extra minutes learning the product, it’s an outstanding pest control solution that I would purchase again.
A**R
Worth it! Cheaper than having a company come.
Absolutely love this and recommend it to everyone. Simple to mix and last a long time. Im terrified of spiders, since starting this I have seen only 1 alive in my house (probably brought in by the dog) only find dead ones in the basement. Pet safe in a couple hours once dried (usually 3-4 hours) I usually only need to do 1 spray indoors at the start of spring, then only outdoors after that until spring again. I was paying a company to come out, at $130 a quarter i needed something a little more budget friendly. No strong odor. Wear gloves and safety glasses for sure.
T**C
Solved our spider fight!
We live on a lake and always battled spiders on our deck/porch from all of the bugs available as a food source. Have tried many different methods to combat the spider population & they return quickly . . . until finding this product! Highly recommend this treatment as it essentially eliminated the spiders. I apply 2xs/year as maintenance now. 1 bottle lasts us 1 -1/2 years with enough potency.
W**S
Demand Cs has very little odor and is very effective in killing bedbugs
I have already started using this I sprayed it around the perimeter of my bed and on the legs and along the baseboard this has very little odor and is very effective in killing bedbugs I would recommend this pesticide to use if you want a good pesticide to kill bedbugs.On you tube Bedbug TV he says his pest control company uses this and the many bedbug reviews on this product on amazon made me choose it.Very little odor very effective in killing bedbugs good combination to have.Ideally you want to use a 1 gallon sprayer with a hose and a wand to spray this product because the hose and wand make it have a long reach in different situations,very flexible and let you spray so you do not spray to much in one area and you get less on yourself because the tip of the sprayer is farther from you.Someone that used to work in pest control told me you can store the left over solution right in the sprayer just make sure you put something underneath the bottom of the trigger so you cannot squeeze it and also I use some pennies rolled in duct tape to put underneath the trigger you can adjust it to fit more pennies or less rolled in duct tape.You can also make only half a gallon at a time also.Also maybe tape around the lock trigger switch so it does not move.I use a Solo 420 sprayer the 2 litter size that is about half a gallon I fill it to 1 liter mark put 3 ml that is squeeze the bottle to 6 ml mark and use only half of it leave the other half in the bottle.There is a little seal you take off before you pour the pesticide in the sprayer put this back on after you pour this is not a disposable seal to throw away.If you do not put it back the screw cap will be to low and be almost impossible to open.After you finish pouring in pesticide shake and put the other of liter of water in and shake it.I also have two Kiwi shoe strings the long ones tied to my half size plastic milk crate I tie the wand down with a shoe string bow and I have another shoe string around the neck where the bottom of the black top rests on the white bottle.On another side of the milk crate I have a shoestring tied to the neck of another bottle with different pesticide in it so it cannot fall. On a 1 gallon sprayer if you are making only half of a gallon then pour all the water in at one time and pour the pesticide in then shake it because you have plenty of room for the pesticide to mix in.On my solo 420 sprayer I disabled the lock trigger by pushing the lock trigger forward like I was using the lock trigger then put superglue in the space where it would sit when I moved it back I then moved it back on the superglue and permanently stuck it in place.After I finish spraying I put my little duct tape penny roll underneath the trigger so I cannot press it down.Our pest control person that does our apartments told me you do not need to buy a stainless steel 1 gallon sprayer that cost over $ 200 dollars like he has if you are just spraying your house or apartment a plastic sprayer it will spray the same as a expensive sprayer and do the same job.I have a Chapin 20000 plastic sprayer that have two holes in the pump handles where when you release the pressure and put the wand in the handle it will not spray anything out if you pull the trigger I think B&G stainless steel,Hudson, SOLO 1 gallon sprayers have some models 1 gallon sprayers where the wand locks into the handle this is a good safety to have if you are going to store your left over pesticide in your sprayer you could tie two shoe strings make bows around both holes and wand to make it safer and squeeze the trigger a couple times to make sure the air pressure is gone and nothing comes out I would suggest plastic ties instead of shoestrings but the instrument you use to cut the ties could cut on the wand if you cut wrong.Only name brand 1 gallon plastic sprayers have holes in the handle where you can lock in the wand in place.You can fit two 1 gallon sprayers inside the half size milk crate put a different pesticide in each the 1 gallon sprayers would never fall down that would make it safer if you stored your pesticide in them.A half size milk crate is 13 inches wide by 13 inches long mine is 10 1/2 inches tall 11 inches tall is fine also Amazon sells them.Someone had bedbug bites after riding there bike so I sprayed down the bike the handle bars not the handle grips, rims and spokes,frame,sprocket and cranks and underneath the seat.I sprayed out doors.I just got done spraying my big fold up shopping cart around the wheels in the cage.It is better if you spray certain objects outside so you will not have any poison from the spraying inside.Always unscrew your sprayer counterclockwise to release the air pressure after spraying so you will not ruin the rubber seal gaskets and have to buy new ones.
M**.
Florida spiders and flies
We moved to a home in Central Florida, and didn’t realize it was infested with spiders from the attic. We saw the reviews on this and figured what the hell we tried everything else and it didn’t work..This stuff is amazing. Not only did we eliminate our spider problem. We got a lot of flies, and this stuff was literally dropping them. Now, during the summertime, we spray our screens with them and the corners of the house and any flies that come in drop immediately. We even spray our outdoor trash cans with it. We have dogs, chickens and kids. This was definitely safe and the small bottle lasted us about a year, Doing the quarterly treatments. Well worth the money.
N**E
Best Choice for tough bugs
Worked like a charm. I used this for scorpions and fire ants in Texas and it did the job. Now it's to eliminate colonies of wasps and an infestation of recluse spiders. Noticeable difference in one week. Awesome.
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