---
product_id: 16247060
title: "Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White"
brand: "primesource"
price: "€ 179.64"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fr/products/16247060-primesource-quinclorac-1-5l-select-liquid-crabgrass-killer-64-ounces
store_origin: FR
region: France
---

# Selective post-emergent herbicide Covers up to 500 sq ft Controls 15+ tough weed species Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White

**Brand:** primesource
**Price:** € 179.64
**Availability:** ✅ In Stock

## Summary

> 🌱 Own the green space, not the weeds!

## Quick Answers

- **What is this?** Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White by primesource
- **How much does it cost?** € 179.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/16247060-primesource-quinclorac-1-5l-select-liquid-crabgrass-killer-64-ounces)

## Best For

- primesource enthusiasts

## Why This Product

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

## Key Features

- • **Generous Coverage:** One 1.5L bottle treats up to 500 sq ft of turf
- • **Versatile Application:** Safe for residential & commercial turf, pre- and post-seeding use
- • **Broad Spectrum Control:** Eliminates crabgrass, foxtail, clover, dandelion, and more
- • **Precision Turf Protection:** Targets crabgrass & broadleaf weeds without harming your lawn
- • **Powerful Active Ingredient:** 18.92% Quinclorac for fast, effective weed control

## Overview

Primesource Quinclorac 1.5L Select is a selective, post-emergent liquid herbicide formulated with 18.92% Quinclorac. Designed for both residential and commercial turf, it effectively controls a wide range of grassy and broadleaf weeds including crabgrass, foxtail, clover, and dandelion. With coverage up to 500 square feet, it can be applied safely from 7 days before seeding to 28 days after weed emergence, ensuring a pristine, weed-free lawn.

## Description

Quinclorac 1.5L Select™ is a selective, post-emergent herbicide that can be applied to many types of turf, both residential and non-residential, to control a variety of weeds. Quinclorac 1.5L Select™ can be applied from 7 days before seeding and up to 28 days after emergence on selected weeds.

## Features

- KEY FEATURE: Selective, post-emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds
- USE SITES: Residential Turfgrass & Non-Residential Turfgrass
- EFFECTIVE AGAINST: Crabgrass (large & smooth), Foxtail (giant, green & yellow), Kikuyugrass, Signalgrass (broadleaf), Torpedograss, Bindweed (field), Clover (hop, red & white), Daisy (english), Dandelion, Dollarweed, Geranium (Carolina), Morningglory spp., Speedwell (common, slender & thymeleaf)
- ACTIVE INGREDIENT: Quinclorac 18.92%

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Active Ingredients | Herbicide, Quinclorac |
| Asin | B00Z7XF438 |
| Best Sellers Rank | #44,504 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #284 in Weed Killers |
| Brand Name | Primesource |
| Coverage | 500 square feet |
| Customer Reviews | 4.4 4.4 out of 5 stars (733) 4.4 out of 5 stars |
| Included Components | Herbicide |
| Item Form | Liquid |
| Item Weight | 0.27 g |
| Liquid Volume | 1500 ml |
| Manufacturer | Prime Source |
| Model Number | 51507PS1405 |
| Part Number | 51507PS1405 |
| Unit Count | 64 Fluid Ounces |
| Upc | 794504353969 |

## Product Details

- **Active Ingredients:** Herbicide, Quinclorac
- **Brand:** Primesource
- **Item Form:** Liquid
- **Item Weight:** 0.27 g
- **Liquid Volume:** 1500 ml

## Images

![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 1](https://m.media-amazon.com/images/I/71-hrjpVj+L.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 2](https://m.media-amazon.com/images/I/91MWwvZoMhL.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 3](https://m.media-amazon.com/images/I/81J8LUKS0iL.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 4](https://m.media-amazon.com/images/I/81DZa9oZM3L.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 5](https://m.media-amazon.com/images/I/81EwnH26R2L.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this kill other weeds in the lawn?  Dandelion, ground ivy, or violets?**
A: Here is a weed list.. It may not be all inclusive but should answer your question..
Barnyardgrass
Bindweed, field
Clover, hop
Clover, red
Clover, white
Crabgrass, large
Crabgrass, smooth
Daisy, English
Dandelion, common
Dollarweed
Foxtail, giant
Foxtail, green
Foxtail, yellow
Geranium, Carolina
Kikuyugrass
Medic, black
Morningglory spp.
Signalgrass, broadleaf
Speedwell, common
Speedwell, slender
Speedwell, thymeleaf
Torpedograss
Violet, wild

Thanks for considering using Keystone Pest Solutions to purchase this product!

**Q: does it work on zoysia grass without damaging the zoysia?**
A: The instructions say yes which is why I purchased it.  Just. completed the first application last week and you can see the torpedo grass turning yellow and no damage to the zoysiia grass.  This product requires multiple treatments (every 14 days) until torpedo grass is dead so will see how the remaining treatments work.

**Q: The instructions say "for use in new york state by spot treatment only". can it not be used elsewhere?**
A: It can be used elsewhere. States dictate how a product can be used in their state. Those instructions apply to New York. New York cannot broadcast spray. They can only spot spray. Please read and follow all label instructions. Thank you.

**Q: can this product be mixed with other weed killers ?**
A: Quinclorac can be mixed with other herbicides, but you need to review all product labels to determine mixing order and compatibility.  Also, be sure to use Methylated Seed Oil (MSO) as a surfactant when using Quinclorac.  Be sure the other herbicides allow MSO as a surfactant.

## Customer Reviews

### ⭐⭐⭐⭐⭐ review
*by  on Reviewed in the United States August 17, 2026*

just as listed

### ⭐⭐⭐⭐⭐ War on Crabgrass, I won!
*by  on Reviewed in the United States October 21, 2025*

Works better than anything else that I have tried on Crabgrass! I mixed 4 Oz with 2 gallons of water, added two tables spoons of Dawn dish soap and spot sprayed with my 2-gallon hand sprayer. I could see each crabgrass plant, so I did not need any dye to see what I was spraying. 3 days later, crabgrass is dying, lawn grass is untouched and a week later the crabgrass plants rot! No need to pull them up or disturb the other grasses. I'm now crabgrass free!

### ⭐⭐⭐⭐⭐ It Just Works
*by  on Reviewed in the United States August 9, 2024*

If you are looking for a post emergent to kill Crabgrass this is the stuff. It may take 2 treatments but is will do the job. It is expensive but you get what you pay for and 1.5L of this will last a long time.

## Frequently Bought Together

- Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White
- Southern Ag Methylated Seed Oil (MSO) Surfactant (Quart - 32oz)
- Southern Ag Surfactant for Herbicides Non-Ionic, 16oz, 1 Pint

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-09-01*