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LambdaStar 9.7% CS Insecticide

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LambdaStar 9.7% CS is the safe choice for killing a variety of bugs. This new formula uses vegetable oil instead of petroleum products to produce less harm to the environment.

Target Pests

LambdaStar 9.7% CS targets a variety of bugs such as ants roaches silverfish flies spiders bed bugs fleas ticks and others.

For Use In

LambdaStar can be used inside place such as homes offices and other man-made structures. It also is safe and effective to use outdoors on places like turf and livestock sites.


For indoor use, dilute LambdaStar with water and mix well. For general surface treatment apply with a paintbrush or other such applicator. This product is also great for crack and crevice treatment. Do not mix product with oil and apply in places where bugs are present.

For outdoor use, simply dilute LambdaStar and apply with a sprayer, around perimeter and other place that needs treatment. This product is still active for up to 90 days after application. If using on a livestock dwelling area, be sure to remove all livestock before application.

Coverage Area

Apply a band 10 feet wide around the perimeter and up to 3 feet high on a foundation. Use all around structures and in cracks and crevices where bugs may harbor. Be sure to use within 24 hours after mixing LambdaStar with water. Keep inaccessible to pets and children please.

Time to Kill

LambdaStar starts working immediately and has a long lasting residual that is not as harmful the environment as other products.

Mix Rate

0.2 fluid ounces per gallon

Active Ingredient

Lambda-cyhalothrin1 9.7%, Dimethylcyclopropanecarboxylate 90.3%

LambdaStar 9.7% CS Insecticide

Lambdastar 9.7

LambdaStar 9.7% CS Insecticide technology utilizes vegetable oil instead of petroleum to provide long lasting residual with less harm to the environment. Never before has a pyrethroid spray been so effective while still going green. This product is easy to mix and features ecocap technology, ensuring a long residual and effective knockdown.



Make sure you have the right sprayer for this product: We suggest a 1 Gallon Pesticide Sprayer

Alternatively, you can purchase Reclaim IT Insecticide which is our own patented brand of insecticide and a better value and can be used to form a long-lasting insect barrier.


Make sure you stay protected when handling chemicals with the help of our homeowner safety kit.


Product Q & A

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Browse 10 questions Browse 10 questions and 14 answers
Will this work in killing erwigs?
Christine F on Jul 9, 2018
BEST ANSWER: Based on my experience I would say it is pretty effective. I sprayed around the outside of my house and in the attic including the eaves, it has greatly reduced the number of earwigs. I spray inside the house with a different insecticide.
Will this help control Cluster Flies?
Chris on Feb 12, 2018
BEST ANSWER: Yes. And, it lasts a long time. I have not used it for that particular application but be ready for it to kill virtually all insects. It is very potent. I assume you are going to be treating outside. Although LambdaStar is rated for inside use, I would use it sparingly indoors. It has worked great for me.
Does Lambdastar kill pill bug?
A shopper on Oct 2, 2017
BEST ANSWER: Yes Lambdastar is labeled to control Pill Bugs 0.8 fl oz (24 mL) per gallon of water. Apply where these pests may
be found or where they may enter premises. Treat baseboards, storage areas, and other locations.
Apply treatments to prevent infestation as described below; also see Outdoor Surface treatments can help reduce the infestation, along with ULV or general surface.
Can I use this in the crawl space under my home to kill spiders?
A shopper on Apr 14, 2018
BEST ANSWER: Yes it can be applied in a crawl space to control spiders.
I have bedbugs do I do every room and leave house ? When can I sleep in the room?
A shopper on Apr 10, 2018
BEST ANSWER: You would want to treat the rooms where you have located active bed bugs, those are usually the areas that we tend to rest. Bedrooms, living areas, etc., but we would recommend you start with a thorough inspection of the entire house.

Here is a link to some inspection instructions for bed bugs and then a treatment plan.

You would want to stay out of area until it completely dries, usually a couple of hours.

If I spray the room where I saw the bedbugs can I sleep in there the same night ?
A shopper on Apr 10, 2018
BEST ANSWER: Yes, you can just make sure that it is completely dry when you re-enter the room.
does this kill stink bugs and ladybugs?
A shopper on Mar 19, 2018
BEST ANSWER: Yes, you can use LambdaStar 9.7% CS to control and kill stink bugs and ladybugs inside and outside your home.
does this kill budbugs?
moonboot on Jan 22, 2017
BEST ANSWER: Yes this is labeled for control of Bed Bugs, I would recommend using Gentrol as an added layer of control and think about an aerosol. https://www.solutionsstores.com/gentrol-igr-insect-growth-regulator

Bed Bugs: Clean floors and surfaces by
vacuuming. Apply as a coarse, low-pressure spray
to harborage areas including crevices, baseboards,
loose plaster, behind bed frames and headboards,
beneath beds and furniture, and to bed springs and
bed frames. Do not apply to furniture surfaces or
mattresses where people will be laying or sitting.
Infested bedding should not be treated, but should
be removed, placed in sealed plastic bags, and taken
for laundering and drying at high temperatures
Spider control for marina covered boat storage,on the water
dick on Sep 10, 2016
BEST ANSWER: You would need to apply Essentria IC3 over the water, and you can use the Cobb Web Eliminator, web out.


how long after application can pet be on it? horse's graze pasture?
ddot on Sep 6, 2016
BEST ANSWER: The Lambdastar does not really list application for grazing, animals are kept off usually until completely dry.

Customer Reviews

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Easy to Use
5.0 / 5
5.0 / 5
5.0 / 5
Safe to Use
5.0 / 5
Would you Recommend?
Yes (2)
Would you Recommend?
Costs more yet saves money!
We have traditionally paid pest control companies to spray our house and shop quarterly at a cost of $75 each quarter. I started using the Lambdastar 9.7% and spraying the house and shop myself for the past year. This product works great and lasts the duration of each quarter. Whereas the pest control guys would spray only around the base of the buildings, I spray wherever spiders and bugs may park themselves. The house stays practically spider free. It saves me money in the long run!
July 25, 2018
1 month ago
Easy to Use
5 / 5
5 / 5
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Hill Country Bugs
Very effective and easy to use. Extremely satisfied with results.
June 2, 2018
3 months ago

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