---
product_id: 80176254
title: "Home Defense Insect Killer for Cracks & Crevices - Spray Foam Kills Ants, Cockroaches, Fleas, Centipedes, Crickets, Boxelder Bugs & Other Listed Common Insects, Long-Lasting, 16 oz."
brand: "ortho"
price: "¥4658"
currency: JPY
in_stock: true
reviews_count: 8
category: "Ortho"
url: https://www.desertcart.jp/products/80176254-home-defense-insect-killer-for-cracks-and-crevices-spray-foam
store_origin: JP
region: Japan
---

# Kills pests up to 18 months Safe indoor & outdoor use Foam expands deep into cracks Home Defense Insect Killer for Cracks & Crevices - Spray Foam Kills Ants, Cockroaches, Fleas, Centipedes, Crickets, Boxelder Bugs & Other Listed Common Insects, Long-Lasting, 16 oz.

**Brand:** ortho
**Price:** ¥4658
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal your home with foam, not fear!

## Quick Answers

- **What is this?** Home Defense Insect Killer for Cracks & Crevices - Spray Foam Kills Ants, Cockroaches, Fleas, Centipedes, Crickets, Boxelder Bugs & Other Listed Common Insects, Long-Lasting, 16 oz. by ortho
- **How much does it cost?** ¥4658 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/80176254-home-defense-insect-killer-for-cracks-and-crevices-spray-foam)

## Best For

- ortho enthusiasts

## Why This Product

- Trusted ortho brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Acting Formula:** Eradicates spiders and crawling pests within seconds
- • **Long-Lasting Defense:** Protects your home from ants & roaches for up to 18 months
- • **Versatile Application:** Effective indoors and outdoors without staining surfaces
- • **Invisible Pest Barrier:** Foam spray reaches hidden crevices where bugs lurk
- • **Pet-Friendly Protection:** Safe for pets once dried, so your family stays secure

## Overview

Ortho Home Defense Insect Killer is a powerful foam spray designed to penetrate cracks and crevices, delivering long-lasting protection against ants, cockroaches, fleas, and other common household pests. Its non-staining formula works indoors and outdoors, creating an invisible barrier that kills pests for up to 18 months on non-porous surfaces. Fast-acting and pet-safe once dry, it’s the ultimate defense for a pest-free home.

## Description

Ortho Home Defense Insect Killer for Cracks & Crevices spreads deep into hard to reach places where pests crawl and hide. The spray kills ants, cockroaches, fleas, centipedes, crickets, boxelder bugs, fleas, ticks and other listed insects. Keeps killing American and German cockroaches and Argentine ants for up to 18 months (on non-porous surfaces). This crack and crevice spray with FoamGuard flows like a liquid, remains in place like a solid, and disappears in less than an hour. Protect your home indoors and out!

Review: Spiders hate it! Arachnophobes love it! - I'm glad this is seemingly non-toxic (enough) to pets as long as it's allowed to dry. While walking the perimeter of the house, spraying any spots that bugs might be able to crawl in through, I noticed something peculiar... All of our window screens on the first floor have a conveniently cat-sized hole ripped through them. It explains why I've found so many dang spiders in the house as of late, and why I have a seemingly never-ending supply of flies to swat. I don't mind the latter so much, mostly because of the satisfaction I get from it (stemming from my pure hatred of flies, as well as the 'thump' sound from hitting them mid-flight) but the spiders/webs left and right were driving me crazy! I don't wanna eat them in my sleep! As I went window to window, doorframe to doorframe, spraying a neat foam rectangle around each, I stumbled upon 2 (3?) different test subjects to help me see just how effective this product is. - Test subject #1: Jumping Spider Now, I really don't mind jumping spiders all that much. They're small, mostly stick to themselves, and curiously enough, I've never seen one weave a web. Alas, this poor laddie wandered right into my line of sight while I was treating the first window, so I gave it a go. I doused him thoroughly in the spray, and he didn't even try to jump! I would say he technically 'died' within a few seconds, as the last few seconds of movement were so minuscule, I doubt his spider-mind was able to comprehend much after the initial blast. All-in-all, it took the spray about 10 seconds to erase all signs of life from this almost-tolerable jumpy boi. Test subject #2: Demon-Spawn Tarzan (I hate this spider so much ew oh god gross looks so nasty) At the third window I went to treat, I walked through a web that got in my hair and face (I might buy the gallon next time) and I stopped to ins[p]ect myself (haha) for any spiders that might've got on me. Good thing I stopped and took a moment, because out of the corner of my eye, I see a little brown crawly boi swinging at me like the king of the jungle himself. I jumped back and gave him a tactical spritz (a tiny amount of fine mist, like a department store cologne sample) that undoubtedly made contact, but was so scarce that there was no visible sign of the spray on the demon afterwards. His nasty, evil legs started dancing like a madman, constantly stabbing at the air as if his last, dying wish were to give me nightmares and creepy-crawlies for days. I aimed the can to give him another spray as good measure, but before I even got the chance to double-dose him, he ceased - thank god. All-in-all, this nasty brown arachnid died in about 8 seconds after receiving just a tiny spritz of the product. Test subject #3: Satan's scavenger (winged feces-muncher) When I finally got to the shed, I was happily lining the corners with this wonder-foam when I heard a buzzing that was all too familiar, and all too close-by. A fly! He buzzed around stupidly in a 12-inch circle, making it easy enough to catch him in just a tiny bit of mist. This definitely bothered him, as he started flying more frantically, and charged towards me blindly a couple of times. Each time, he was met with another cloud of 0.03% Deltamethrin blasted in his direction. Now, being a fly and all, it was hard to tell how much of the product actually made contact with the ugly beast, but it's fair to assume that he got a slightly higher dose than #2 did. [The reason I marked #3 as (3?) is because this product was not marketed as a fly-killer, and I can't tell if it is effective as such. Besides, the can says to 'not spray into the air', so most fly-hunting with this product would be deemed irresponsible.] Sadly, I lost track of him when I stepped out of the shed for some fresh air, and was not able to locate him when I went back in. Did he die at my hands - er.. Spray? Or did he live to fly another few hours? The world will never know. I like to think he lived out the rest of his days getting rejected by potential dates all because of the funny smell I put on him. But that's just me. All-in-all, this product works great for killing spiders, and is cheaper than replacing your window screen every time your cat tears through it - Although it will probably not do much against mosquitos and flies; You need the ol'-fashioned zap-racket for those ones. The straw nozzle works great, and is so satisfying that I'm going to buy another can just for the fun of reinforcing my houses bug-barrier in another month! Will update then.
Review: Effective home protection - This home defense spray works very well. My family’s last apartment was on the ground level, so we dealt with all sorts of bugs coming in. Once we started using this product, our bug issues disappeared. We no longer live in an apartment on the bottom level, but we still use this spray. This exact product is effective, easy to use, affordable, and pet friendly. The only issue is they don’t sell this spray in stores.

## Features

- Ortho Home Defense Insect Killer for Cracks & Crevices is a spray foam that spreads deep into hard-to-reach places where bugs can hide, plus it's long-lasting and protects your home indoors and out
- KILLS HOME-INVADING PESTS: Kills those pesky ants, cockroaches, fleas, centipedes, crickets, boxelder bugs, fleas, ticks and other listed insects that like to crawl into your house
- LONG-LASTING: It keeps on killing German and American cockroaches and Argentine ants for up to 18 months and keeps killing carpenter ants for up to 1 month (on non-porous surfaces)
- INDOOR & OUTDOOR USE: The foam can be used inside your home or outside, and it's non-staining on surfaces that water would not stain
- EASY-TO-USE FOAM SPRAY: The foam spreads around objects and hard-to-reach areas that sprays can miss, and it expands and disappears, leaving an invisible home protective barrier

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #14,752 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #200 in Insect & Pest Repellent Sprays |
| Brand | Ortho |
| Customer Reviews | 4.3 out of 5 stars 5,148 Reviews |
| Global Trade Identification Number | 20071549020549 |
| Item Form | Spray |
| Item Weight | 1.12 ounces |
| Target Species | Insects |
| UPC | 071549020545 |

## Product Details

- **Brand:** Ortho
- **Item Form:** Spray
- **Item Weight:** 1.12 ounces
- **Target Species:** Insects
- **UPC:** 071549020545

## Images

![Home Defense Insect Killer for Cracks & Crevices - Spray Foam Kills Ants, Cockroaches, Fleas, Centipedes, Crickets, Boxelder Bugs & Other Listed Common Insects, Long-Lasting, 16 oz. - Image 1](https://m.media-amazon.com/images/I/81eV4-TTDkL.jpg)

## Questions & Answers

**Q: Does this kill wasps?**
A: We appreciate your question regarding Ortho Home Defense Insect Killer for Cracks and Crevices. Unfortunately, this product will not control wasps. We recommend that you try Ortho Home Defense Hornet and Wasp Killer. If you have any further questions, feel free to contact us at 866-324-9192.

**Q: Can anyone please give me a full list of insect names what this product can kill? Thanks so much!**
A: None! Do not purchase

**Q: invaded with tiny thin bugs do not hop or fly so not fleas ants or termites, no idea what they are, will this work?**
A: The only way you will know is to try it. It sure works on ants. I wear rubber gloves, spray it on a towel and wipe down areas where they are walking. Wash your hands well. You could go to your local college and ask the biology department if they could identify your bugs and find out what they are. I don't think that I would want to spray this into the air.

**Q: Does it kill moths?**
A: Home Defense Insect Killer for Cracks and Crevices is not registered to control moths.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Spiders hate it! Arachnophobes love it!
*by B***O on June 21, 2021*

I'm glad this is seemingly non-toxic (enough) to pets as long as it's allowed to dry. While walking the perimeter of the house, spraying any spots that bugs might be able to crawl in through, I noticed something peculiar... All of our window screens on the first floor have a conveniently cat-sized hole ripped through them. It explains why I've found so many dang spiders in the house as of late, and why I have a seemingly never-ending supply of flies to swat. I don't mind the latter so much, mostly because of the satisfaction I get from it (stemming from my pure hatred of flies, as well as the 'thump' sound from hitting them mid-flight) but the spiders/webs left and right were driving me crazy! I don't wanna eat them in my sleep! As I went window to window, doorframe to doorframe, spraying a neat foam rectangle around each, I stumbled upon 2 (3?) different test subjects to help me see just how effective this product is. - Test subject #1: Jumping Spider Now, I really don't mind jumping spiders all that much. They're small, mostly stick to themselves, and curiously enough, I've never seen one weave a web. Alas, this poor laddie wandered right into my line of sight while I was treating the first window, so I gave it a go. I doused him thoroughly in the spray, and he didn't even try to jump! I would say he technically 'died' within a few seconds, as the last few seconds of movement were so minuscule, I doubt his spider-mind was able to comprehend much after the initial blast. All-in-all, it took the spray about 10 seconds to erase all signs of life from this almost-tolerable jumpy boi. Test subject #2: Demon-Spawn Tarzan (I hate this spider so much ew oh god gross looks so nasty) At the third window I went to treat, I walked through a web that got in my hair and face (I might buy the gallon next time) and I stopped to ins[p]ect myself (haha) for any spiders that might've got on me. Good thing I stopped and took a moment, because out of the corner of my eye, I see a little brown crawly boi swinging at me like the king of the jungle himself. I jumped back and gave him a tactical spritz (a tiny amount of fine mist, like a department store cologne sample) that undoubtedly made contact, but was so scarce that there was no visible sign of the spray on the demon afterwards. His nasty, evil legs started dancing like a madman, constantly stabbing at the air as if his last, dying wish were to give me nightmares and creepy-crawlies for days. I aimed the can to give him another spray as good measure, but before I even got the chance to double-dose him, he ceased - thank god. All-in-all, this nasty brown arachnid died in about 8 seconds after receiving just a tiny spritz of the product. Test subject #3: Satan's scavenger (winged feces-muncher) When I finally got to the shed, I was happily lining the corners with this wonder-foam when I heard a buzzing that was all too familiar, and all too close-by. A fly! He buzzed around stupidly in a 12-inch circle, making it easy enough to catch him in just a tiny bit of mist. This definitely bothered him, as he started flying more frantically, and charged towards me blindly a couple of times. Each time, he was met with another cloud of 0.03% Deltamethrin blasted in his direction. Now, being a fly and all, it was hard to tell how much of the product actually made contact with the ugly beast, but it's fair to assume that he got a slightly higher dose than #2 did. [The reason I marked #3 as (3?) is because this product was not marketed as a fly-killer, and I can't tell if it is effective as such. Besides, the can says to 'not spray into the air', so most fly-hunting with this product would be deemed irresponsible.] Sadly, I lost track of him when I stepped out of the shed for some fresh air, and was not able to locate him when I went back in. Did he die at my hands - er.. Spray? Or did he live to fly another few hours? The world will never know. I like to think he lived out the rest of his days getting rejected by potential dates all because of the funny smell I put on him. But that's just me. All-in-all, this product works great for killing spiders, and is cheaper than replacing your window screen every time your cat tears through it - Although it will probably not do much against mosquitos and flies; You need the ol'-fashioned zap-racket for those ones. The straw nozzle works great, and is so satisfying that I'm going to buy another can just for the fun of reinforcing my houses bug-barrier in another month! Will update then.

### ⭐⭐⭐⭐⭐ Effective home protection
*by H***N on April 8, 2025*

This home defense spray works very well. My family’s last apartment was on the ground level, so we dealt with all sorts of bugs coming in. Once we started using this product, our bug issues disappeared. We no longer live in an apartment on the bottom level, but we still use this spray. This exact product is effective, easy to use, affordable, and pet friendly. The only issue is they don’t sell this spray in stores.

### ⭐⭐⭐⭐ The sprayer stop working
*by J***N on August 2, 2025*

Great stuff but I got mine on July 21st and have plenty left in the can but the top where you put your finger has already broke so it’s a big waste. I was going to order another can but a little liery about that breaking too. A good product though

## Frequently Bought Together

- Ortho Home Defense Insect Killer for Cracks & Crevices - Spray Foam Kills Ants, Cockroaches, Fleas, Centipedes, Crickets, Boxelder Bugs & Other Listed Common Insects, Long-Lasting, 16 oz.
- Ortho Home Defense Insect Killer for Indoor & Perimeter2 with Comfort Wand, Controls Ants, Roaches, and Spiders, 1.1 gal
- Ortho Home Defense Max Indoor Insect Barrier with Extended Reach Comfort Wand, Kills Ants, Roaches, Spiders, Fleas and Ticks, 1 gal.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/80176254-home-defense-insect-killer-for-cracks-and-crevices-spray-foam](https://www.desertcart.jp/products/80176254-home-defense-insect-killer-for-cracks-and-crevices-spray-foam)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-27*