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Terro Ant Killer, 16 oz. Aerosol Spray

SKU: 557994

  • Kills ants, cockroaches, crickets, scorpions, spiders, and other insects
  • Kills on contact and continues to kill for up to 6 weeks
  • Use as a spot treatment and in cracks and crevices
  • 16 oz aerosol can with twist-to-open top
  • For indoor and outdoor use
  • Best used for:
    • Near Entry Points
    • Along Baseboards
    • Cracks & Crevices
    • Storage Areas
    • Garages
    • Attics
  • Eliminates:
    • Ants
    • Asian lady bird beetles
    • Black widow spiders
    • Cockroaches
    • Crickets
    • Fleas
    • Scorpions
    • Silverfish
    • Waterbugs
  • Active Ingredients (0.38%):
    • Prallethrin {(RS)-2-Methyl-4-oxo-3-(2-propynyl) cyclopent-2-enyl (1RS)-cis, trans-chrysanthemate}(0.03%)
    • Esfenvalerate [(S)-Cyano (3-phenoxyphenyl) methyl 4-chloro-alpha-(1-methylethyl) benzeneacetate] (0.05%)
    • N-Octyl bicycloheptene dicarboximide (0.30%)
    • Other Ingredients (99.62%)


There are more than 10,000 known species of ants living throughout the world. Like other insects, they have six legs; each with three joints. Ants have large heads with compound eyes, elbowed antennae and powerful jaws. Ants are social insects that live in structured nest communities throughout the world. The species of ant determines whether they live underground, in mounds built at ground level, in wood structures or in plants or trees.


Rid your home of ant invasions withTERRO® Ant Killer Spray. This 16 oz aerosol spray kills ants on contact, and it keeps working for weeks after the initial application. Whether Ant Killer Spray is used inside as a deterrent or outside to control the pest population, it can protect against ants, spiders, cockroaches, and other unwanted insects.


Thanks to its convenient spray nozzle, Ant Killer Spray is an easy-to-use ant treatment. For best results, aim the can in a slightly downward direction. Make sure the spray is facing away from you before depressing the nozzle. For effective pest reduction, apply Ant Killer Spray directly to pests.


Ant Killer Spray can be used indoors to eliminate pests from common hiding places, such as storage areas, sinks, plumbing, baseboards, and drains. To eliminate the existing ant population and prevent reinfestation, use the spray to treat cracks, crevices, and any potential entry points. It can also be used as a spot treatment. For outdoor use, apply the spray in wind-free conditions to increase accuracy.


Ant Killer spray kills ants on contact and continues to kill them for up to 6 weeks. The spray can also protect against scorpions, crickets, spiders, cockroaches, silverfish, centipedes, and Asian lady beetles.


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Q. I know this kills on contact will it also act as a barrier if sprayed on the outside perimeter of my door where I see ants coming in, or once it dissipates ants will cross thanks

A. This product is not meant to be used as a preventative.

Q. I believe my ants may be in the walls of my home. So I definitely need to spray all around my inside kitchen sink window. Will it be safe to do this if some residual spray falls down around my counters...will it be poisonous?

A. This product can be used both indoors and outdoors. We recommend keeping children and pets away from the treated area until the spray has dried. The treated area does not need to be cleaned after it has been sprayed, however, if you wish to you can use soap and water.

Q. During an ant infestation this was accidentally sprayed on carpeted areas where is a lot of foot traffic. Is there a residue that remains after the spray dries? Would it be recommended to clean this carpeted area since we often step there barefoot?

A. This product will continue to be effective in the areas in which it was sprayed for up to 6 weeks. We recommend cleaning the carpet area.

Q. Is this product safe to spray on flowering trees ?

A. We do not recommend spraying this product on flowering trees.

Q. Can sprayed surfaces be wiped down with a damp rag after the Terro has dried? If so, will the Terro have any residual effect on ants?

A. The treated area does not need to be wiped down after it has been sprayed, however, you may use soap and water to clean the product. This product will have a residual effect once it is applied, but we recommend reapplying if it has been wiped down.

Q. Can you spray next to food

A. We do not recommend spraying this product next to food. Remove or cover exposed food and drinking water before application. Remove or cover dishes, utensils, food processing equipment, and food processing surfaces, or wash them before use.

Q. What is acceptable temperature for storing this spray? Can I keto it in an outside shed when it's below 32F? Thanks.

A. We recommend storing this product in a cool, dry place out of freezing temperatures.

Q. I am interested in this spray product but worried about my dogs and anyone inhaling the spray. The infestation in my home and perimeter of my home is horrible. After following their many different trails, I suspect their home is outside. Do you suggest I spray this outside? I don't want to lure them in the house. Also, how and when do I clean the area (with all the dead ants that I hope to see!) After 6 weeks? With just any rag? Thank you!

A. This product can be used both indoors and outdoors. We recommend keeping children and pets away from the treated area until the spray has dried. The treated area does not need to be cleaned after it has been sprayed, however, if you wish to you can use soap and water.

Q. If this only kills on contact why does it say it continues to kill for up to 6 weeks? Can I not spray a crack and be ensured ants will not come through for 6 weeks?

A. This product has a residual effect that will last up to 6 weeks. If an ant were to crawl through the crack, they would come in contact with the product which will work against then and cause them to expire.

Q. is this product safe to use on carpet and leather like a car interior?

A. Testing has not been done on these surfaces, as it is usually recommended for cracks, crevices, baseboards, etc. Test a small area first for staining.

Q. If I were to spray this in a hole on the wall suspected of nest, what if it did not kill off the colony as I had sealed the hole? will my wall be screwed?

A. This spray is made to kill on contact and will not have any residual effect. Our TERRO® Liquid Ant Baits (Model #T300) however, are made to be taken back to the colony by the ants to kill them at the source. These can be purchased at the following link: http://www.terro.com/terro-liquid-ant-baits-2-pack. Please feel free to call us at 1-800-800-1819 x 458 with any additional questions.

Q. Does this spray have a smell and if so what does it smell like and how long does it take for the smell to go away.

A. This spray does have a sweet smell. It should dissipate shortly after application.

Q. Good morning, I have a dog and a young child. How long after using the spray is it safe for us to be back in the area that has been sprayed?

A. We recommend keeping children and pets out of the treated area until the spray has dried.

Q. I want the spray that came with the straw u could put in the nozzle to spray small cracks and crevices! Please help!

A. We apologize, the spray bottle with the extender straw is no longer available.

Q. I found two black widows and webs hiding between the front door and trap door of my home. I used this spray to kill them and then saturated the webs. Will this also kill the eggs within the web when sprayed directly? Or just the spiders themselves?

A. This product is a contact killer that will only kill spiders when directly sprayed. It has not been tested to kill the eggs.

Q. I store my kayak outdoors and found ants had gotten into the cockpit even though it was tightly covered. it is stored upside down, what would be the best product to stop this? and would it harm the fibreglass?plastic?

A. As the kayak will be coming in contact with an aquatic habitat, we cannot recommend using the spray. Our best option would be using the TERRO® Liquid Ant Baits. We also have other products available. Please feel free to contact our Consumer Relations Team at 1-800-800-1819 x458 for additional assistance.