---
product_id: 18535989
title: "Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz"
brand: "black flag"
price: "₨43273"
currency: LKR
in_stock: true
reviews_count: 8
category: "Black Flag"
url: https://www.desertcart.lk/products/18535989-extreme-flea-killer-plus-growth-regulator-rtu-for-insects-1
store_origin: LK
region: Sri Lanka
---

# Up to 7 months growth regulator 1 gal covers 750 sq ft Kills fleas, eggs & larvae Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz

**Brand:** black flag
**Price:** ₨43273
**Availability:** ✅ In Stock

## Summary

> 🛡️ Take back your space—flea-free living starts here!

## Quick Answers

- **What is this?** Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz by black flag
- **How much does it cost?** ₨43273 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/18535989-extreme-flea-killer-plus-growth-regulator-rtu-for-insects-1)

## Best For

- black flag enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Home Use:** Safe for carpets, upholstery, rugs & hard-to-reach baseboards
- • **Large Coverage Area:** One gallon treats up to 750 square feet for whole-home defense
- • **Trusted Brand Legacy:** Black Flag’s proven formula delivers fast, reliable insect control
- • **Long-Lasting Protection:** Nylar growth regulator prevents adult fleas for up to 7 months
- • **Complete Flea Lifecycle Control:** Targets fleas, eggs, larvae & ticks for total eradication

## Overview

Black Flag Extreme Flea Killer Plus Growth Regulator is a powerful, ready-to-use spray designed to eliminate fleas, flea eggs, larvae, ticks, carpet beetles, and dust mites. Featuring Lambda-Cyhalothrin and Pyriproxyfen (Nylar), it breaks the flea life cycle to prevent adult fleas for up to 7 months. Ideal for indoor use on carpets, upholstery, rugs, and baseboards, one gallon covers 750 square feet, making it perfect for comprehensive home flea control. Trusted by thousands, it offers fast, effective, and long-lasting protection without staining furnishings.

## Description

Insects invading your corner of the world? Whatever insect you're fighting, Black Flag products are dedicated to providing the tools you need to regain control. With formulas that act fast & never back down, Black Flag insect controls have been arming homeowners in the battle against invading bugs for more years than any other brand. Black Flag flea & Tick spray Plus growth regulator home treatment kills fleas, flea eggs, flea larvae & ticks indoors. Use it on carpets, upholstery, rugs & hard-to-reach places like baseboards & moldings. This formula contains Nylar insect growth regulator to break the flea life cycle by preventing fleas from developing into biting adults forup to 7 months. It also controls carpet beetles & dust mites. When used as directed, this product will not stain furnishings or carpeting. Inspect the treatment area for fleas two weeks after the initial treatment & reapply if necessary. If ticks are present, spray directly to kill. For long-term flea control, apply 1 gallonper 750 square'. Use as part of a comprehensive flea & Tick treatment plan that includes coordinated treatment of the home, yd & pet. Treatment & prevention work together, so it's key to treat all three areas simultaneously. This integrated pest management approach involves inspection, cleaning & targeting eggs, larvae & adults with the appropriate insecticides. Follow-up treatments are almost always necessary.

Review: It really works, seriously! - This actually works to eliminate fleas! I had tried everything prior to buying this product & nothing seemed to even put a dent in the sudden flea issue on my patio. These fleas were literally living in the cracks of the brick floor on my front porch. I don’t have an animal that would be the cause of this, so idk where this flea population suddenly came from. It was brutal, every time I was out on the porch, I was being bit on my feet & ankles. Fleas were jumping into my fuzzy slippers & I even brought 2 inside my house by accident. Over the course of a week, I tried covering the entirety of the porch with borax, which I did 2 days in a row. I then tried an essential oil based insecticide that claimed to kill fleas (it didn’t) which I used 2 days in a row. Then for the next 2 days, I covered every floor brick & the walls on the porch, with home defense. Which usually will easily kill every type of bug. All this to no avail, after 7 days & 6 separate treatments, I walked outside & had 4 fleas on my foot within a minute. So I researched & learned they can live & breed in the dirt or grime buildup between patio bricks. My porch is pretty regularly cleaned, so I didn’t think it was built up enough to foster flea eggs. Regardless, I spent 4 hrs blasting every speck of dirt out of in between the bricks, plus the walls were sprayed down. After it dried, I saturated the entire porch once again, but now with this flea & tick spray. It does have kind of a strong smell as you spray it, make sure to wear gloves & maybe a mask. The like tube between sprayer & bottle is like an inch long, so you have to carry the jug in one hand & spray with the other. Even trying to keep my distance, I must’ve breathed the overspray in my nose a bit, cause it really irritated my sinuses & caused a sneezing fit. The smell was present for a few hours after, but it wasn’t bad. After all that effort.. I was so happy, it actually worked! Between the intense cleaning & applying this spray, to every crack, every brick surface & the perimeter of the porch. I almost couldn’t even believe it. No more fleas in the last few days since using this product! I do anticipate spraying again though, probably within a week, just in case there’s any eggs still in the cracks. At the same time I ordered this spray, I also ordered these little traps that have a sticky glue sheet & a heat light above them to attract the fleas. I put those out at night, on the same day that I sprayed this, as those sticky sheets would show if there were still any living on the porch, even if not jumping on me. Luckily, I have not found any fleas in the sticky trap, just mosquitoes. Hooray for this spray! Don’t waste your time with any other products, just use this first! I wish I would’ve, it would have saved me from a dozen itchy flea bites on my ankles.
Review: Works great for knocking down a flea infestation - The Black Flag Extreme Flea Killer Plug Growth Regulator spray worked great for knocking down a flea infestation inside. My relative does not have any pets but someone's cat kept coming into their backyard. That cat must have had a major flea infestation because the whole backyard was soon hopping with fleas that would jump on your legs (summer, so wearing shorts) and bite. And even worse, these blood sucking fleas would "hitch" a ride on your clothes so the fleas infested the inside of the house! Vacuuming several times a day was helping, but there were still tons hopping, biting, laying eggs and hatching the future blood suckers! Along with the constant vacuuming, this Black Flag spray helped to knock down the fleas substantially. Within a few days, there were noticeably less fleas (and bites!) and the visible ones were very weak. The IGR Growth Regulator in this spray probably also helped to cut down the fleas, since they couldn't mature to the egg laying life cycle, so within a month of spraying and constant vacuuming, it appears that the inside flea infestation is gone. However, the backyard still had the flea infestation which required another product purchased from desertcart which also worked well. The only problem though is that the spray attachment that comes with this product is junk and does not work! Ended up putting the Black Flag into another spray bottle so Black Flag really needs to address the issue of this useless spray attachment! So, if you have a flea infestation inside this Black Flag spray (make sure you read and follow the label directions!) is recommended along with constant vacuuming.

## Features

- HOME FLEA TREATMENT: Ideal for carpets, upholstery, rugs, baseboards and moldings
- KILLS FLEAS, FLEA EGGS, FLEA LARVAE AND TICKS: Use as part of a comprehensive flea and tick treatment program – also kills carpet beetles and dust mites
- CONTAINS NYLAR: Insect growth regulator breaks the flea cycle – prevents fleas from developing into biting adults for up to 7 months
- FOR LONG-TERM FLEA CONTROL: Apply 1 gallon per 750 square feet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PVN1ST8 |
| Active Ingredients | Lambda-Cyhalothrim,Pyriproxyfen |
| Best Sellers Rank | #1,511 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #65 in Insect & Pest Repellent Sprays |
| Brand | Black Flag |
| Brand Name | Black Flag |
| Customer Reviews | 4.2 out of 5 stars 4,725 Reviews |
| Global Trade Identification Number | 00891549110936 |
| Included Components | bottle |
| Item Form | Spray |
| Item Type Name | Flea and Tick Killer |
| Item Weight | 8 Pounds |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | United Industries |
| Model Number | HG-11093 |
| Part Number | HG-11093 |
| Target Species | Insects |
| UPC | 891549110936 891549110752 |
| Unit Count | 128.0 Fluid Ounces |
| Warranty Description | See Manufacturers Website |

## Product Details

- **Active Ingredients:** Lambda-Cyhalothrim,Pyriproxyfen
- **Brand:** Black Flag
- **Item Form:** Spray
- **Item Weight:** 8 Pounds
- **Liquid Volume:** 128 Fluid Ounces

## Images

![Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz - Image 1](https://m.media-amazon.com/images/I/71yynXToCNL.jpg)
![Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz - Image 2](https://m.media-amazon.com/images/I/71uBGK1DAiL.jpg)
![Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz - Image 3](https://m.media-amazon.com/images/I/816QMnfULML.jpg)
![Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz - Image 4](https://m.media-amazon.com/images/I/81vfMwF0OJL.jpg)
![Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz - Image 5](https://m.media-amazon.com/images/I/A1kbNY5XhVL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Why is there a lot of "vine customer review of free product ?" they all have a 4 to 5 star review while the ones who really bought had 1star reviews.**
A: They get paid to give good reviews of products, thats why becky got so butthurt and figured calling you “chad” was enough of an insult for pointing out their lack of integrity because of their disingenuous gig job giving disingenuous reviews.

**Q: Can some one answer please?can i used this products with my cats and my dog in my house or have to take them to the other place?this is toxic for them**
A: I have both cats & dogs...just keep them off of the area until it's "completely dry"...then it's all good after that.

**Q: is it safe to spray on mattress?**
A: I've sprayed it on the sides of my mattress didn't have any problems with it.

**Q: How long does it take to kill a flea? I've trapped some live fleas in a plastic bag and sprayed them. That was 7 hours ago and they are still alive.**
A: I was a little disappointed in its killing power myself. As itself being a black flag product I thought it should do a better job.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It really works, seriously!
*by S***S on October 18, 2025*

This actually works to eliminate fleas! I had tried everything prior to buying this product & nothing seemed to even put a dent in the sudden flea issue on my patio. These fleas were literally living in the cracks of the brick floor on my front porch. I don’t have an animal that would be the cause of this, so idk where this flea population suddenly came from. It was brutal, every time I was out on the porch, I was being bit on my feet & ankles. Fleas were jumping into my fuzzy slippers & I even brought 2 inside my house by accident. Over the course of a week, I tried covering the entirety of the porch with borax, which I did 2 days in a row. I then tried an essential oil based insecticide that claimed to kill fleas (it didn’t) which I used 2 days in a row. Then for the next 2 days, I covered every floor brick & the walls on the porch, with home defense. Which usually will easily kill every type of bug. All this to no avail, after 7 days & 6 separate treatments, I walked outside & had 4 fleas on my foot within a minute. So I researched & learned they can live & breed in the dirt or grime buildup between patio bricks. My porch is pretty regularly cleaned, so I didn’t think it was built up enough to foster flea eggs. Regardless, I spent 4 hrs blasting every speck of dirt out of in between the bricks, plus the walls were sprayed down. After it dried, I saturated the entire porch once again, but now with this flea & tick spray. It does have kind of a strong smell as you spray it, make sure to wear gloves & maybe a mask. The like tube between sprayer & bottle is like an inch long, so you have to carry the jug in one hand & spray with the other. Even trying to keep my distance, I must’ve breathed the overspray in my nose a bit, cause it really irritated my sinuses & caused a sneezing fit. The smell was present for a few hours after, but it wasn’t bad. After all that effort.. I was so happy, it actually worked! Between the intense cleaning & applying this spray, to every crack, every brick surface & the perimeter of the porch. I almost couldn’t even believe it. No more fleas in the last few days since using this product! I do anticipate spraying again though, probably within a week, just in case there’s any eggs still in the cracks. At the same time I ordered this spray, I also ordered these little traps that have a sticky glue sheet & a heat light above them to attract the fleas. I put those out at night, on the same day that I sprayed this, as those sticky sheets would show if there were still any living on the porch, even if not jumping on me. Luckily, I have not found any fleas in the sticky trap, just mosquitoes. Hooray for this spray! Don’t waste your time with any other products, just use this first! I wish I would’ve, it would have saved me from a dozen itchy flea bites on my ankles.

### ⭐⭐⭐⭐⭐ Works great for knocking down a flea infestation
*by Y***I on September 20, 2023*

The Black Flag Extreme Flea Killer Plug Growth Regulator spray worked great for knocking down a flea infestation inside. My relative does not have any pets but someone's cat kept coming into their backyard. That cat must have had a major flea infestation because the whole backyard was soon hopping with fleas that would jump on your legs (summer, so wearing shorts) and bite. And even worse, these blood sucking fleas would "hitch" a ride on your clothes so the fleas infested the inside of the house! Vacuuming several times a day was helping, but there were still tons hopping, biting, laying eggs and hatching the future blood suckers! Along with the constant vacuuming, this Black Flag spray helped to knock down the fleas substantially. Within a few days, there were noticeably less fleas (and bites!) and the visible ones were very weak. The IGR Growth Regulator in this spray probably also helped to cut down the fleas, since they couldn't mature to the egg laying life cycle, so within a month of spraying and constant vacuuming, it appears that the inside flea infestation is gone. However, the backyard still had the flea infestation which required another product purchased from Amazon which also worked well. The only problem though is that the spray attachment that comes with this product is junk and does not work! Ended up putting the Black Flag into another spray bottle so Black Flag really needs to address the issue of this useless spray attachment! So, if you have a flea infestation inside this Black Flag spray (make sure you read and follow the label directions!) is recommended along with constant vacuuming.

### ⭐⭐⭐⭐ “Great Product, Terrible Sprayer – Here’s the Fix!”
*by S***Z on August 25, 2025*

Black Flag Extreme Flea Killer definitely works — but only if you apply it the right way. The reason I didn’t give 5 stars has nothing to do with the product itself, but with the cheap onboard sprayer it comes with. I bought two gallons and both sprayers broke almost instantly. On my first attempt, hardly any product came out, which made it ineffective (and this was even after I had my carpets professionally cleaned). Instead of leaving a bad review, I decided to take a different approach. I went to Harbor Freight and picked up a $13.99 hand pump garden sprayer (1¼ gallon). I poured the product into that, resprayed all my carpets, and bam! It worked exactly as all the 5-star reviews say. So here’s my advice: don’t rely on the sprayer it comes with. Get yourself a garden sprayer, apply it thoroughly, and you’ll have a win-win situation — a product that truly delivers results and peace of mind knowing your flea problem is under control.

## Frequently Bought Together

- Black Flag Extreme Flea Killer Plus Growth Regulator RTU for Insects, 1-gal, 128 Oz
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- Adams Flea & Tick Home Spray with Precor, Kills Fleas, Flea Eggs, Flea Larvae, Bed Bugs, Ticks, Ants, Cockroaches, Spiders, Mosquitoes And Many Other Listed Nuisance Pests In The Home, 24 Fl Oz

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-05-14*