---
product_id: 341587732
title: "Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack"
brand: "primesource"
price: "$13.37"
currency: USD
in_stock: false
reviews_count: 8
url: https://www.desertcart.ec/products/341587732-primesource-quinclorac-1-5-select-drive-xlr8-liquid-crabgrass-killer
store_origin: EC
region: Ecuador
---

# 18.92% Quinclorac 7.5 oz liquid Vector Blue indicator Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack

**Brand:** primesource
**Price:** $13.37
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Unleash the Green: Your Lawn's Best Defense Against Crabgrass!

## Quick Answers

- **What is this?** Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack by primesource
- **How much does it cost?** $13.37 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/341587732-primesource-quinclorac-1-5-select-drive-xlr8-liquid-crabgrass-killer)

## 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

- • **Versatile Use:** Perfect for residential lawns, golf courses, and sod farms alike.
- • **Eco-Friendly Formula:** Non-toxic to people, pets, and the environment—spray with peace of mind.
- • **Precision Application:** Vector Blue spray pattern indicator ensures no spot is missed.
- • **Efficient Surfactant Combo:** Maximize coverage and minimize waste with our non-ionic surfactant.
- • **Powerful Crabgrass Control:** Harness the strength of 18.92% Quinclorac for unbeatable results.

## Overview

PrimesourceQuinclorac 1.5 Select is a powerful liquid crabgrass killer featuring 18.92% Quinclorac, designed for both residential and non-residential turfgrass applications. The 7.5-ounce formula includes a unique Vector Blue spray pattern indicator, ensuring precise application while being non-toxic to people and pets. The included non-ionic surfactant enhances product adherence, making it an efficient choice for maintaining pristine lawns, golf courses, and sod farms.

## Description

Quinclorac 1.5L liquid herbicide is the latest technology in providing unsurpassed crabgrass control. However Quinclorac 1.5L treats and controls a wide variety of other grasses and broadleaf weeds in residential lawns, commercial establishments, golf courses, military and other institutions, as well as parks, athletic fields and many others . When compared to a dry flowable formulation, the new liquid formulation offers superior results. It is strongly recommended to use Methylated Seed oil as an adjuvant to help the herbicide be absorbed by the weeds. Yield Titan’s Vector Blue Spray Pattern Indicator is a high-quality spray colorant that highlights the area where chemical spray has already been sprayed. Whether it is insecticide, herbicide, or fungicide, Vector will eliminate the chances of overlapping and will make sure that entire has been covered. It is Easy to identify because of its visible natural colorant and eliminates the chances of waste or skips. Vector is water-soluble for turf, ornamental or aquatic applications of liquid pesticides and fertilizers. The solution can be washed away after a few washes with any soap. The solution will lose its color over time when exposed to heat and sunlight. Yield Titan's 80/20 Surfactant for Herbicides Non-Ionic Increase Product Penetration This non-ionic surfactant is used for enhanced coverage and penetration of chemical sprays such as herbicides, pesticides, Fertilizers, Fungicides and Defoliants. Active Ingredients: Non-Ionic Surfactant-----80 Percent Inter Ingredients----------20 Percent Total-----------------------100 Percent

## Features

- Quinclorac 18.92%
- Residential and Non-Residential Turfgrass, Golf Course, Sod Farms
- Vector Blue is Non toxic to people, animals and the local environment
- Indicates where spray mixtures have been applied
- Vector blue and Surfactant will prevent you from wasting product and ensure your applications stick to desired growth

## Product Details

- **Brand:** Primesource
- **Liquid Volume:** 7.5 Fluid Ounces
- **Item Form:** Liquid
- **UPC:** 696218191045
- **Manufacturer:** Primesource

## Images

![Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack - Image 1](https://m.media-amazon.com/images/I/51AXkJhgUuS.jpg)
![Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack - Image 2](https://m.media-amazon.com/images/I/61cJqc0idsS.jpg)
![Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack - Image 3](https://m.media-amazon.com/images/I/71WOiN+EO4S.jpg)
![Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack - Image 4](https://m.media-amazon.com/images/I/71KvKDdkTpS.jpg)
![Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack - Image 5](https://m.media-amazon.com/images/I/81eZ42fKciS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works if you use it right
*by T***B on July 14, 2023*

The pictures were taken on the third day after application. You can see the crab grass is dying while leaving other grasses unharmed. I've seen people complain about it not working and that's because they are using it on mature crabgrass with well established roots. For best results spray it when it's less than 2-3 inches long. Once it reaches 5-6 inches, it's recommended that you wait until the next season.A couple of tips I've developed over the years:1. Spray when it's young (see above).2. Use a surfactant. The leaves are too waxy to hold onto the spray.3. Use multiple applications 1-2 weeks apart. If the roots are well established you will kill only part of them and the plant will recover. Multiple applications also gets any new sprouts since the last application.4. Use a spray dye so you can see how well you've covered the plant. All leaves need to be saturated. If you don't cover all leaves with herbicide the weed seems to recover. The dye also helps to see where you've sprayed. and where you haven't.

### ⭐⭐⭐⭐⭐ By crabcrass
*by J***C on June 23, 2024*

Worked on a southern Bermuda lawn like a charm....takes a couple of weeks but smokes crabgrass ...did not harm grass...will stun the crap out of Dallis grass...I combined it with Celsius

### ⭐⭐ This is not a remedy for bent grass and will kill st.augustine
*by J***K on May 29, 2025*

I purchased this as a remedy to eliminate bent grass and torpedo grass, I was told it would brown my St. Augustine and eliminate the others. It did the complete opposite, in fact the bent grass and other weeds seemed to thrive. A costly mistake in many ways.

## Frequently Bought Together

- Primesource Quinclorac 1.5 Select (Drive XLR8) Liquid Crabgrass Killer 7.5 Ounces with Yield Titan's Vector Blue Concentrated Spray Pattern Indicator and Non-Ionic Surfactant Combo Pack
- Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White
- Prime Source Celsius WG - 0.226 oz Easy Mix Packet-Post Emerge Weed Control

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-06*