---
product_id: 410441652
title: "Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control"
brand: "ortho"
price: "A$113"
currency: AUD
in_stock: true
reviews_count: 5
category: "Ortho"
url: https://www.desertcart.com.au/products/410441652-ortho-home-defense-max-bed-bug-and-flea-killer-powder
store_origin: AU
region: Australia
---

# Up to 8 months control Kills bed bugs & fleas on contact Targets cracks & crevices Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control

**Brand:** ortho
**Price:** A$113
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your domain with precision and power — pest-free living starts here!

## Quick Answers

- **What is this?** Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control by ortho
- **How much does it cost?** A$113 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/410441652-ortho-home-defense-max-bed-bug-and-flea-killer-powder)

## 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

- • **Safe & Unscented:** Formulated without fragrance to keep your home fresh while protecting your space.
- • **Seamless Integration:** Part of Ortho’s 3-step system for total bed bug detection and eradication.
- • **Precision Application:** Easily apply powder into hard-to-reach cracks and crevices where pests hide.
- • **Broad-Spectrum Control:** Effectively eliminates a wide range of pests including ants, cockroaches, spiders, and scorpions.
- • **Long-Lasting Pest Defense:** Enjoy up to 8 months of relentless protection against bed bugs, fleas, and more.

## Overview

Ortho Home Defense Max Bed Bug & Flea Killer Powder is a powerful, unscented powder designed for targeted application in cracks and crevices, delivering up to 8 months of control against bed bugs, fleas, and a broad spectrum of household pests. Easy to apply and part of a comprehensive 3-step pest control system, it ensures professional-grade protection for your home’s toughest hiding spots.

## Description

Product Description Kill bed bugs, fleas, and other listed insects where they hide with Ortho Home Defense Max Bed Bug & Flea Killer Powder. It kills and controls bed bugs, fleas, ants, silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed insects for up to 8 months. This bed bug powder is the third step in the Ortho 3-step bed bug solution system. Use step 1 to detect bed bugs with Ortho Home Defense Max Bed Bug Trap and step 2 for room treatment with Ortho Home Defense Max Killer (both sold separately). Ortho Home Defense Max Bed Bug & Flea Killer Powder kills bed bugs, fleas, ants, silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed bugs in areas that are hard to spray like the cracks and crevices of bed frames, along baseboards, near window frames, in closets and other places bugs travel and like to hide. It's easy to use this bed bug powder, simply apply directly from the bottle or with a hand duster. Directions This product is intended for applications with a hand duster, or from the container to hiding and runway areas and other places where insects are found. In living areas, make applications in such a manner as to avoid deposits on exposed surfaces or introducing the material into the air. To avoid the possibility of staining, do not use on carpets, upholstery and other fabrics. Do not apply as a broadcast application indoors. To apply insecticide directly into cracks and crevices, use a bulbous duster, or other suitable equipment Apply lightly and uniformly to infested area. Pay particular attention to cracks and crevices; service ducts; false floors and ceilings, wallvid around electrical and telephone fittings and equipment; around water and sewer pipes; under and behind cabinet, refrigerators and sinks; around windows and door frames; along baseboards; in attics and crawl spaces. The amount to be applied will vary with the site but usually be in the range of 2-3 grams of product per square yard (or 0.5 lb. per 1,000 square feet). Ants, Boxelder Bugs Cockroaches (Including Both Resistant and Non-resistant Strains), Crickets, Fleas, Firebrats and Silverfish: Apply thoroughly to all areas where these pests crawl and hide, especially in those areas described above. For Ants, apply to ant trails, around doors and windows, and other places where ants enter premises. Centipedes, Ground Beetles, Millipedes, Scorpions, Spiders and Sowbugs: Apply dust along and behind baseboards, to window and door frames, corners, pipes, storage locations, attics, crawl spaces, and other areas where these pests may enter or crawl. Webbing Clothes Moths: Use as a crack and crevice treatment in closets and other storage areas where these pests are found. Carpet Beetles (Black, Furniture, Common and Varied): Dust where these insects are found, for example: under edges of foor coverings, behind baseboards, under rugs and furniture and in closets. Do not apply as a broadcast application to floors or for coverings, including carpeting. Bed bu Safety Warning May be harmful if absorbed through the skin. Causes moderate eye irritation. Avoid contact with skin, eyes, or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet.

Review: Works, just be careful.
Review: dust

## Features

- Use biocides safely. Always read the label and product information before use.
- Ortho Home Defense Max Bed Bug & Flea Killer Powder kills by contact and provides long-lasting control, killing bed bugs and fleas in the difficult to spray places where they like to hide
- LONG-LASTING: Provides up to 8 months of control for bed bugs, fleas, ants, silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed bugs
- WHERE TO USE: Use in tough to reach areas where bed bugs or fleas like to travel and hide including cracks and crevices in bed frames, wall mouldings, in closets, and under cupboards; to avoid staining do not use on carpets or fabrics
- EASY TO USE: Evenly apply the bed bug powder with a hand duster or squeeze it directly from the bottle to apply in cracks and crevices; for best results, apply lightly and uniformly to infested areas
- A BED BUG SOLUTION SYSTEM: Use with Step 1 Ortho Home Defense Max Bed Bug trap to detect bed bugs, and Step 2 Ortho Home Defense Max Bed Bug Killer to kill bed bugs quickly (sold seperately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0812KTXBR |
| Best Sellers Rank | 184,893 in Garden ( See Top 100 in Garden ) 665 in Bed Bug, Flea & Mite Control |
| Brand | Ortho |
| Brand Name | Ortho |
| Customer Reviews | 4.3 out of 5 stars 1,631 Reviews |
| Global Trade Identification Number | 00071549438906 |
| Included Components | Ortho - 71549438906 |
| Item Form | Powder |
| Item Nype Name | Ortho Home Defense Max -Kills on Contact, Provides Up to 8 Months of |
| Item Volume | 12 Fluid Ounces |
| Item Weight | 12 Ounces |
| Item form | Powder |
| Item volume | 12 Fluid Ounces |
| Manufacturer | Ortho |
| Number of Items | 1 |
| Number of items | 1 |
| Scent | Unscented |
| Scent Name | Unscented |
| UPC | 071549438906 |
| Unit Count | 340.0 gram |
| Unit count | 340.0 gram |

## Product Details

- **Brand:** Ortho
- **Item form:** Powder
- **Item volume:** 12 Fluid Ounces
- **Number of items:** 1
- **Scent:** Unscented

## Images

![Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control - Image 1](https://m.media-amazon.com/images/I/71GmebLppxL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control - Image 2](https://m.media-amazon.com/images/I/71DZ+7d92RL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control - Image 3](https://m.media-amazon.com/images/I/71T30kP19sL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control - Image 4](https://m.media-amazon.com/images/I/817d67tCGKL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control - Image 5](https://m.media-amazon.com/images/I/81wBUlI1pgL.jpg)

## Questions & Answers

**Q: Does this product have residual effects, meaning do you have to spray the bugs directly to kill them or if they crawl through it later will it kill?**
A: Sometimes there will be bugs crawling out. Makes it easier target to kill.

**Q: Can i spay mattress or clothing with this**
A: Clothing should be washed to get rid of bugs when possible. Heat kills them just as well as chemicals, though heat doesn't have keep working later. Just put any fabric or pillows that fit into a dryer in on the hottest setting for the longest amount of time on the machine. You can wash and dry it normally after, though only using the dryer on completely dry fabric is needed.

**Q: What's the difference in this Ortho Max and the original ortho in which I've purchased three times and now they've hiked the price of double sometime?**
A: The difference is that Ortho Home Defense Max Bedbug, Flea, & Tick Killer uses Bifenthrin, Imidacloprid, & Piperonyl Butoxide.  Ortho Home Defense Bedbug, Flea, & Tick Killer uses phenoxybenzyl, dimethyl, cyclopropanecarboxylate, N-Octyl bicycloheptene dicarboximide, & Imidacloprid. Ortho Home Defense Insect Killer uses Bifenthrin, & Zeta-Cypermethrin.

**Q: Does this Kill even after its dried?**
A: Thank you for your question regarding Ortho Home Defense Max Bed Bug, Flea and Tick Killer. Insects must come in contact with the insecticide either at time of application when it is wet or after it has dried during the period of residual control. The residual is around 2 weeks. If you have any further questions, feel free to contact us at 866-324-9192.

## Customer Reviews

### ⭐⭐⭐⭐ Works, just be careful.
*by S***X on 28 January 2026*



### ⭐⭐⭐⭐ dust
*by N***E on 2 February 2026*



### ⭐⭐⭐⭐⭐ Three exterminators could not do what Ortho and I did. Bedbug free one year!
*by J***Y on 12 September 2025*



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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-02*