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Optimate CS Insecticide

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Optimate CS contains highly concentrated Gamma-Cyhalothrin, the most active isomer for insect control at half the rate of Lambda-Cyhalothrin. Labeled for use in and around structures, lawns and ornamentals, Optimate CS has a long lasting residual that continues working for months but can be applied at 21 day intervals.

Target Pests

Optimate CS will kill and control the following insects: Ants Bed Bugs Bees Boxelder Bugs Carpenter Bees Carpet Beetles Centipedes Cigarette Beetles Clover Mites Cockroaches Confused Flour Beetles Crickets Earwigs Firebrats Fleas Flies Lesser Grain Borers Millipedes Mosquitoes Red Flour Beetles Rice Weevils Saw-toothed Grain Beetles Silverfish Sowbugs Ticks Wasps Litter Beetles Pillbugs Scorpions Spiders

For Use In

Optimate CS can be used in and around buildings and public transportation methods including but not limited to: industrial buildings houses apartment buildings laboratories buses greenhouses stores warehouses ships railcars trucks trailers aircraft schoolsm nursing homes hospitals restaurants hotels poultry housing pet kennels food granaries grain mills food manufacturing food processing plants garbage rooms bathrooms garages storage facilities machine rooms offices and service establishments.


Before applying Optimate CS clean up interior and exterior debris. Outside remove debris and leaf litter from the foundation. Cut back vegetation from the structure and remove rocks and mulch next to the foundation. Inside ensure proper access to areas around appliances and plumbing.

  • Outdoor applications of Optimate CS should be done with a hand pump sprayer or a tank mixed power sprayer. Mix between .16 and .5 ounces of Optimate depending on pest with each gallon of water. Apply a continuous band of Optimate CS insecticide as a residual spray treatment around foundations of buildings, surface cracks, windows, doors, eaves, patios, garages, trash and dumpster areas, and other harborage and entry points. For perimeter pest control, Optimate may be sprayed 3 feet up the foundation and 10 feet away from the foundation.
  • Any application of Optimate CS must ensure a continuous band of pesticide around the perimeter of the home or structure.

    Coverage Area

    The amount of area Optimate CS will treat varies by pest and mix rate.

    Each 1oz bottle of Optimate CS will make 2 to 8 gallons of finished pesticide spray and treat between 2,000 and 8,000 square feet

    Time to Kill

    Optimate CS will begin killing insects within 2 minutes.

    Mix Rate

    0.16 to .33 oz (5-10 milliliters) per gallon of water in a hand pump sprayer or a tank mixed power sprayer. Different dilution rates for other uses, see label.

    Active Ingredient

    Gamma-Cyhalothrin 5.9%

    Optimate CS Insecticide

    Product Q & A

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    Browse 2 questions Browse 2 questions and 3 answers
    How long is the residual on the Optimate?
    Ashlee O on Sep 11, 2017
    BEST ANSWER: It will depend where and what you are applying the Optimate CS Insecticide onto. For general applications inside and around homes you will have about 45 days of residual control. When you use this for mosquito control or other flying insects and the spray is applied to living plants it will be much lower.
    Can you spray Optimate on skin to protect from Mosquito bites?
    A shopper on Sep 12, 2017
    BEST ANSWER: You cannot do this. It is against the label and also would cause a burning sensation that would take a few hours to go away. It can be sprayed where mosquitoes habitate (vegetation shady areas, and around homes) to kill them before they ever get a chance to bite you.

    Customer Reviews

    4.9 / 5.0
    11 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    It works, it's late in season not as many insects but works on what I have now. Thanks
    October 11, 2017
    6 months ago
    Great product! Works very well at keeping unwanted insects away.
    October 10, 2017
    6 months ago
    Tried the small free sample. Seems pretty powerful.
    October 9, 2017
    6 months ago
    Shipping was fast and produce was as stated.
    All well.
    October 9, 2017
    6 months ago
    Works Very Well
    Just applied to perimeter of house. Seems to be working
    October 8, 2017
    6 months ago
    Works and kills roaches for me
    Sprayed solution around my house and in the garage...next day found 6 dead roaches...love this stuff and going to order more.
    October 6, 2017
    6 months ago
    Optimate CS actually works!
    Best product I have found to kill mosquitos that were preventing my family from enjoying the outside.
    September 12, 2017
    YES! I am through with local big box stores and their watered down formulas. Optimate is the real deal. The mosquitoes around my home dropped dead from this spray. I am recommending this to anyone and everyone who is dealing with mosquitoes around the home.
    September 12, 2017
    Great stuff
    We purchased the product for our flea problem it worked great got rid of them very quickly as well as the rest of my insects. No complaint got the product very fast. Definitely will suggest this to my friends.
    September 12, 2017
    Best product for mosquito killer
    I was not 100% sure that this would control my mosquitoes in the back yard, but scary thing is it really worked. My emails were answered, it was shipped quickly. Will go no where else for my pest control.
    September 11, 2017

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