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Ortho

Ortho Home Defense Insect Killer for Lawn & Landscape Ready-To-Spray - Hose-End Applicator, Kill Ants, Ticks, Mosquitoes, Fleas & Spiders, 32 fl. oz.

  • Based on 20,823 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Jun 23
Order within 16 hours and 49 minutes
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Size: 32 oz.


Style: Ready to Spray


Features

  • LONG-LASTING INSECT CONTROL: This home defense bug spray for outdoors starts killing within minutes and keeps on killing ants, spiders (excluding black widow), and American dog ticks for 3 months
  • BUG SPRAY FOR HOME YARDS: Easily apply insect spray by connecting a garden hose to the attached sprayer
  • WHERE TO USE: Use this pest control spray on lawns, around your home perimeter, and on ornamentals, flowers, trees, shrubs and listed vegetables and fruit trees
  • OUTDOOR BUG KILLER: Kill 235 listed bugs, including ants, ticks, armyworms, mosquitoes, fleas, spiders and periodical cicadas with Ortho Home Defense Insect Killer for Lawn & Landscape Ready-To-Spray insecticide
  • BUG BARRIER COVERAGE: Ortho Home Defense Insect Killer for Lawn & Landscape provides treatment for a 5,300 sq ft lawn, 1,400 sq ft of foundation/perimeter, or across 2,700 square feet of foliage

Description

Ortho Home Defense Insect Killer for Lawn & Landscape Ready-To-Spray kills bugs outside before they come inside. This outdoor ant spray kills up to 235 kinds of listed bugs, while creating a bug barrier to stop them before they enter your home as part of a home perimeter pest control program for the DIY homeowners. Use this outdoor home defense bug spray on lawns, around your home perimeter, ornamentals, flowers, trees, shrubs, listed vegetables and fruit trees. Ideal for yards and as part of a DIY lawn care program. To apply, just use just connect the bottle to your garden hose, turn on the water, and slide the lever to "ON". The bug spray is non-staining and odor-free, starts killing outdoor insects within minutes. The Ortho home defense spray product also helps with insect prevention by protecting against ants, fleas, spiders (excluding black widow) and American dog ticks for up to 3 months. Use this flea and tick spray lawn insecticide as directed for long-lasting protection to protect homes and lawns. One 32 fl. oz. bottle of Ortho Home Defense Insect Killer for Lawn & Landscape treats up to 5,300 sq. ft. of lawn, 1,400 sq. ft. of foundation or perimeter, or across 2,700 sq. ft. of foliage including ornamentals, flowers, trees, shrubs and listed vegetables and fruit trees.

Item Form: Spray


Item Weight: 32 Ounces


Liquid Volume: 32 Fluid Ounces


Brand: Ortho


Target Species: Dog


Brand Name: Ortho


UPC: 071549017385


Global Trade Identification Number: 85


Part Number: 173810


Model Number: Home Defense


Item Type Name: 32Oz Rts Hd Insct Killer


Unit Count: 1.0 Count


Included Components: SCOTTS ORTHO ROUNDUP 0173810 32OZ Ready-to-Use Insect Killer


Manufacturer: The Scotts Company LLC


Item Form: Spray


Target Species: Dog


Item Weight: 32 Ounces


Liquid Volume: 32 Fluid Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Good
Size: 32 oz. Style: Ready to Spray
Works good I get it every year
Reviewed in the United States on May 29, 2026 by david pounds
    • UPDATED: Fleas are complicated. ORIG: Fleas living and prospering after 3 spaced spraying sessions
Size: 32 oz. Style: Ready to Spray
EDIT: I gave this product only 2 stars originally. But after doing research and following recommendation I managed to resolve my backyard flea problem with this product. The problem with fleas is that they sort of "hibernate" in hard shell cocoons. And its impossible to create a chemical product which is safe (non-toxic) and kills fleas in all stages: larvae, cocoon, adult. If you make such product, it would be highly toxic for humans too. With my overly simplistic approach I sprayed 3 times, but I just did nothing in between these spraying sessions. Teenage fleas hide in impenetrable cocoons and can stay there for months. They get out of their cocoons when there is a potential meal walking nearby. So I decided to combine the poison with luring the fleas out of their cocoons. I walked around the backyard, stomping and slightly jumping to cause surface vibration. Then I sprayed the yard. Now, after couple of such sessions the fleas are finally and completely gone. Summary. This poison is just a good tool. But you also need to know how to use it correctly. ORIGINAL: I have a tiny backyard closed with a fence. A few stray cats visited and left some guerrilla combatants in a form of fleas. I made sure that cats couldn't trespass anymore and decided to use this product to kill fleas. I sprayed once. No result, same amount of fleas. Sprayed second time after a week. Less fleas, but still a lot. Waited another week and sprayed the third time. Three days past, there are much less fleas, but I still caught 3 fleas jumping on me. And even a single flee is too much. I must be zero. This product definitely doesn't work. Remind you, there are no more cats. ... show more
Reviewed in the United States on October 7, 2023 by GT
    • Works on Spotted Lantern Flies
Size: 32 oz. Style: Ready to Spray
We planted a maple tree 8/2022 & noticed the spotted lantern flies started hanging on it this year, 2023. I was worried they would destroy my new tree & found a YouTube video showing this spray was being sold with little hang tags stating this does work on lantern flies (not sure where, mine didnt come with one). I gave it a shot & it worked! Only thing is it kills bees & other insects :( It hooks up to the hose pretty easy. My tree is about 12 ft tall this year & it was impossible to spray the top branches but I guess they hang down closer to the trunk, idk but it worked so far! ... show more
Reviewed in the United States on August 24, 2023 by Stacey Bartock
    • Works well
Size: 32 oz. Style: Ready to Spray
Great product
Reviewed in the United States on May 21, 2026 by Sue
    • Did not keep ants away
Size: 32 oz. Style: Ready to Spray
Did not work for me.
Reviewed in the United States on May 6, 2026 by Maria L
    • Works great!!
Size: 32 oz. Style: Ready to Spray
Works great!
Reviewed in the United States on May 29, 2026 by Mary Taylor
    • Love this product
Size: 32 oz. Style: Ready to Spray
I trust ortho products for all my insect needs.
Reviewed in the United States on May 20, 2026 by Penny Farwwll
    • If You Have Dogs: Helpful For Lawn Flea And Tick Control
Size: 32 oz. Style: Ready to Spray
Fleas and ticks are rampant in the San Francisco Bay Area. We've found Ortho Home Defense Lawn & Landscape to be a helpful tool in managing fleas and ticks on our dogs. It is easy to apply via spraying through attachment on your hose. Flea Note: Fleas are frustrating pests to get rid of, as they can live for a LONG time before hatching. So frustrating! You need to maintain an ongoing spray schedule to keep these pests under control in your lawns. One spray and done doesn't work for fleas. I highly recommend this product. ... show more
Reviewed in the United States on March 24, 2025 by Mary Rae Fouts

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