---
product_id: 16247060
title: "Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White"
brand: "primesource"
price: "€ 104.83"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/16247060-primesource-quinclorac-1-5l-select-liquid-crabgrass-killer-64-ounces
store_origin: IE
region: Ireland
---

# Selective herbicide Liquid form Covers 500 sq ft Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White

**Brand:** primesource
**Price:** € 104.83
**Availability:** ✅ In Stock

## Summary

> 🌿 Unleash the Green: Your Lawn Deserves It!

## Quick Answers

- **What is this?** Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White by primesource
- **How much does it cost?** € 104.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/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

- • **Easy to Use:** Liquid formulation makes application a breeze!
- • **Transform Your Turf:** Say goodbye to pesky weeds and hello to a pristine lawn!
- • **Versatile Application:** Safe for both residential and non-residential turfgrass.
- • **Broad Spectrum Control:** Targets a wide range of weeds including crabgrass, dandelions, and more.
- • **Powerful Active Ingredient:** Contains 18.92% Quinclorac for maximum effectiveness.

## Overview

Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer is a powerful selective herbicide designed to effectively control a variety of broadleaf and grassy weeds in both residential and non-residential turfgrass. With a coverage area of 500 square feet and an active ingredient concentration of 18.92% Quinclorac, this liquid formulation ensures a lush, weed-free lawn with minimal effort.

## Description

Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White

## 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 |
|---------------|-------|
| Coverage | 500 square feet |
| Item Form | Liquid |
| Liquid Volume | 64 Fluid Ounces |
| Item Weight | 0.01 Ounces |
| Active Ingredients | Quinclorac, Herbicide |

## Product Details

- **Brand:** Primesource
- **Item Weight:** 0.01 Ounces
- **Liquid Volume:** 1.5E+3 Milliliters
- **Item Form:** Liquid
- **Active Ingredients:** Herbicide, Quinclorac

## Images

![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 1](https://m.media-amazon.com/images/I/61PZDEtQ3GL.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 2](https://m.media-amazon.com/images/I/71hiF6GpalL.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 3](https://m.media-amazon.com/images/I/71fzBFvrp9L.jpg)
![Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White - Image 4](https://m.media-amazon.com/images/I/71wGxokY1dL.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.

## 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 Ireland*
*Store origin: IE*
*Last updated: 2026-02-18*