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Home Defense 1 gal. Insect Killer for Indoor & Perimeter2 Ready-To-Use Trigger Sprayer

  • Creates a bug barrier
  • 1 gal. ready-to-use trigger sprayer for larger areas
  • For indoor and outdoor areas around home perimeter
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Product Overview

Don't just kills bugs; create a bug barrier with Ortho Home Defense Insect Killer for Indoor & Perimeter2 Ready-to-Use. Whether you have ants, spiders, roaches or other home-invading insects, you can count on Ortho to keep them out. Simply spray Ortho Home Defense around the perimeter of your home foundation to protect your home for up to 12 months.
  • Up to 12-month protection (against ants, roaches and spiders indoors on nonporous surfaces)
  • Kills all common listed household bugs (refer to product label for complete list of insects)
  • Non-staining, odor-free and dries fast
  • Long lasting bug barrier
  • Ready-to-use 24 oz. sprayer for small areas or 1 gal. ready-to-use trigger sprayer for larger areas
  • For indoor and outdoor areas like kitchens, bathrooms, doors and windows, basements, garages and around the home perimeter
  • Helps to prevent exterior bugs from entering your home
  • This product is applicable for the following pest types: Ants, Aphids, Armyworms, Beetles, Black Widow Spiders, Brown Recluse Spiders, Caterpillars, Carpenter Ants, Chinch Bugs, Crickets, Earwigs, Fleas, Harvester Ants, Hobo Spiders, Millipedes, Mole Crickets, Mosquitos, Roaches, Whiteflies
  • Note: product may vary by store

Additional Resources

From the Manufacturer

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BrandSpectracideOrthoOrthoHot Shot
NameBug Stop 1 gal. RTU Home Insect ControlHome Defense 1 gal. Insect Killer for Indoor & Perimeter2 Ready-To-Use Trigger SprayerHome Defense Insect Killer for Indoor & Perimeter Refill 21 Gal. Ready-to-Use Bed Bug Killer Treatment With Egg Kill
Pest Common NameAnt,Beetle,Earwig,Flea,Fly,Rat,Roach,Spider,TickAnt,Aphid,Beetle,Caterpillar,Earwig,Flea,Fly,Mole,Mosquito,Roach,Spider,WormAnt,Aphid,Beetle,Caterpillar,Earwig,Flea,Fly,Mole,Mosquito,Rat,Spider,Tick,WormBed Bug,Flea
Spray Application TypeTriggerTriggerReady To Use RefillTrigger
Application TypeSpraySpraySpraySpray
Garden Pest LocationNot for Garden UseNot for Garden UseNot for Garden UseNot for Garden Use
Concentrated or Ready to UseReady to useReady to useReady to useReady to use
Safe for EdiblesNoNoNoNo
Safe for PetsNoNoNoNo
View ProductView ProductView ProductView Product



Product Depth (in.)4.875 inProduct Height (in.)12 in
Product Width (in.)9 in


Application TypeSprayConcentrated or Ready to UseReady to use
Garden Pest LocationNot for Garden UseIndoor/OutdoorIndoor,Outdoor
Pack Size1Pest Common NameAnt,Aphid,Beetle,Caterpillar,Earwig,Flea,Fly,Mole,Mosquito,Roach,Spider,Worm
Pest Control TypeLawn Insect ControlPrimary Active IngredientBifenthrin
Product Weight (oz.)128 ozReturnable90-Day
Safe for EdiblesNoSafe for PetsNo
Spray Application TypeTrigger

Questions & Answers

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Customer Reviews

  • 4.2
    out of 9,000 reviews
  • 76%recommend this product
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Showing 1-10 of 9,000 reviews
Beware: Kills Plants
I used this around my home & near my roses and boxwood. These well-established plants immediately turned brown and started to die. Even 2 years later the hedge didn’t recover. Very toxic.
Response from Ortho Consumer ServicesJun 27, 2022
We are concerned to hear this. We would like the opportunity to gather some additional information and offer assistance. Please reach out to our Consumer Services team at 877-220-3089 for assistance. ortho
    Roaches...SMH Where?!
    A Google search lead me to this product. Property management at Dryden Apartments failed to properly clean a unit before a new tenant moved in. It was also infested with roaches. This product works extremely fast and doesn't give off toxic fumes or smells. Use the Ortho Defense spray along with the Combat gel to seal cracks & crevices and you'll notice a significant drop in pests living in your home.
      • Recommended
      1 found this review helpful
      Great product, great service
      Bought it like 6 months ago, it has definitely resolved the ants issue in my apartment, but my 5 stars are more cause the service, 3 weeks ago the wand stopped working with half gallon full, I called support and with a few questions and 5 mins talk they just arranged to send me a replacement, cost free, which I received 2 weeks ago, this is the type of service that creates loyalty
        • Recommended
        This stuff works great at keeping out/killing spiders for sure. Spray it around doorway thresholds into house and rooms. DO NOT SPRAY ON YOUR WINDOWS. I sprayed it around every doorway and window, anywhere bugs could get in OVER A YEAR AGO. I got some drips on the window itself. I figured they would go away by themselves over time. I was wrong. I just got done scrubbing, POWER WASHING, and even hand cleaning with Windex over a year later. Still those drips are pretty much as bad as the day the got on the windows, milk-ish cloudy drips on most of the windows of my two story house. The drips are absolutely from the Ortho Home Defense spray, and the drips are apparently are here to stay a long long time. Do yourself a favor if you use this, and don't get it on the glass!
        Response from Ortho TeamAug 25, 2021
        We are sorry to hear about your experience with the Ortho Home Defense Insect Killer. Our products carry a satisfaction guarantee, at your convenience, please contact us to see what we can do to help. We can be reached at 866-324-9192. ortho
          12 found this review helpful
          Does not work
          I've been spraying my porch for carpenter ants for a week and still have them
          Response from Consumer Service Jul 29, 2021
          We're sorry for any disappointment you have experienced in the results after applying Ortho Home Defense Insect Killer For Indoor & Perimeter2. You should see a reduction in pests within a few days. We recommend to re-treat outdoors at least once every three months but this product may be reapplied as needed, especially after heavy rain. If you are unsatisfied with the results, please reach out to us at 866-324-9192. We would be happy to assist you with our product guarantee.
            Cheapest Poor Quality Trigger
            My trigger broke from moderate pressure, making an entire gallon of product now useless. Also, a bug has to nearly drown in this weak formula. REALLY, Ortho??????
            Response from Consumer Service Jul 29, 2021
            Thank you for your feedback. We're sorry for this experience using Ortho Home Defense Insect Killer For Indoor & Perimeter2 and that sprayer didn't work as expected. We would like to assist you further by offering a replacement part if available or by sharing our product guarantee. Please reach out to us at 866-324-9192 at your convenience if we can be of assistance.
              This absolutely works!
              We started using this product after my mother recommend it. We had not use this spray in over 2 yrs. We would spray once week for a month, inside and out. Before we used it, we would see spiders, here and there. Once we started using it, if you did see one it was dead. But we have not seen any spiders or bugs period so we stopped spraying. Well spring 2021 has hit here in FL and we went back to spraying and this spray is a game changer. Love this product!! If it can keep bugs at bay here in this woody area in FL where the bugs are in abundance it can work anywhere. We spray everywhere, from garbage cans to the shed out back. If it's not working for you spray again you won't be disappointed.
                • Recommended
                Insect control
                On the label said up to 12 month protection but it is not,this is kill on contract only it control nothing even 1 day.
                Response from Ortho TeamJun 8, 2021
                We are sorry to hear of your experience with Ortho Home Defense Insect Killer for Indoor & Perimeter. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089 for assistance. When calling, please refer to this review. ortho
                  6 found this review helpful
                  Oh I love this stuff since I was introduced in 2000. It's all I use 'in the house' for ants and w...
                  Oh I love this stuff since I was introduced in 2000. It's all I use 'in the house' for ants and water bugs etc. Meanwhile this be trippin on the price for the auto spout.
                  • Verified Purchase
                  • Recommended
                  5 found this review helpful
                  Exceded my expectations with how effective it diminished my ant infestation of several years
                  My house is in South FL so the summer and fall season are when bugs like ants and spiders start to make way into my home. My house is not only dark, but humid and warm due to my area, so it makes the perfect breeding ground. Lately, the problem has been astronomical. Spiders dwelling in about half of the corners of my floors or ceilings, and trails of ants in the kitchen constantly. Any food left out for 5 minutes will be infested in minutes- I knew I had to do something because it is basically an infestation at this point. So, I bought this product and sprayed it indoors around all the windows, doors and corners after vacuuming them away first. It did kill the pests on contact, however, the ant problem still persists in my kitchen although it DID do away with the majority of them. I want to say it has eliminated about 70% of them after 24 hours. They are still coming in, though. The 24 oz bottle lasted me about 2 uses around my entire house, half the first round and half the second round, so just know that if you plan on spraying both indoor and outdoor you might want to prepare yourself for going through the whole spray bottle in one usage or size up to the larger sizes. Ill be monitoring the pests for the next 12 months as it claims, but especially the ants in the kitchen which is my main concern. As of now though, the problem has GREATLY diminished thanks to this spray. I also wanted to note that at first, the ants SWARMED to this spray, it was pretty alarming how they loved it, but I believe they took it back to their colony and died after it being in their system for several hours because of the results. I dont expect it to work perfectly the first time because Ive had this infestation for well over 2 years, but it was finally time to put my foot down because it had become unbearably overwhelming how fast they would get to food or any crumbs. I wouldnt have a problem repeating this every month or every few months with how inexpensive it is. Overall, I am very happy.
                    • Recommended
                    19 found this review helpful
                    Showing 1-10 of 9,000 reviews