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Item #:
121713061
Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces), White
Item #:
121713061
€ 86
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 2 items left in stock.
Order now and get it around Tuesday, September 01
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Quinclorac 1.5L Select™ safely controls a variety of broadleaf and grassy weeds on many types of turf.
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What Stands Out
Effective Crabgrass Control
Primesource Quinclorac provides targeted action against crabgrass, effectively eliminating it at the source, ensuring a healthy and vibrant lawn throughout the growing season.
Concentrated Formula
With a potent 1.5L concentration, this liquid solution ensures maximum coverage and efficiency, allowing homeowners to achieve professional-grade results with minimal effort.
User-Friendly Application
Designed for easy use, this liquid killer promotes straightforward application methods, making it accessible for both novice and experienced gardeners to manage lawn care with confidence.
Product Details
| Brand Name | Primesource |
| UPC | 794504353969 |
| Manufacturer | Prime Source |
| Unit Count | 64 Fluid Ounces |
| Included Components | Herbicide |
| Model Number | 51507PS1405 |
| Part Number | 51507PS1405 |
| Liquid Volume | 1500 ml |
| Item Form | Liquid |
| Coverage | 500 square feet |
| Active Ingredients | Herbicide, Quinclorac |
| Brand | Primesource |
| Package Weight | 5.8 Pound |
| Country of Origin | This item will be imported from US |
| What is in the box | Primesource Quinclorac 1.5L... For more details, please check description/product details |
Who Should Buy?
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Homeowners
Ideal for homeowners dealing with stubborn crabgrass and seeking an effective solution for their lawns.
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Golf Courses
Beneficial for golf course maintenance teams looking to maintain green spaces free from crabgrass infestations.
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Landscape Professionals
Perfect for landscape professionals who need efficient weed management in various landscapes and turf areas.
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Vegetable Gardens
Not suitable for use in vegetable gardens as it may affect edible plants negatively.
Product Description
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Customer Questions & Answers
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Question:
What is Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer?
Answer: Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer is an effective herbicide specifically designed to combat crabgrass and other stubborn weeds in various types of lawns. The active ingredient, Quinclorac, works by inhibiting the growth of weeds, ultimately leading to their death. It's particularly beneficial for maintaining a healthy lawn as it can target tough weeds without harming your grass. For best results, apply it during the early stages of weed growth, and ensure that the lawn is adequately watered for optimal absorption. -
Question:
How do you use Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer?
Answer: To use Primesource Quinclorac, first dilute the liquid as per the instructions on the label, typically mixed with water in a sprayer. Next, apply the solution to areas where crabgrass and other target weeds are observed. It's advisable to use this product when temperatures are above 60°F and when the grass is actively growing, as this enhances its effectiveness. For maximum control, make sure to cover the entire area uniformly for even distribution and monitor the area after application for signs of weed control. -
Question:
Is Primesource Quinclorac safe for all types of grass?
Answer: Primesource Quinclorac is safe for many established grass types, including Kentucky bluegrass, fescue, and ryegrass. However, it may not be suitable for all grass varieties, particularly sensitive types like bentgrass. Always check the product label for specific grass type guidelines before application to ensure compatibility, as misuse can result in damage. Test a small area first if you are concerned about grass reaction to the herbicide, and monitor the treated area closely after application to observe the effects. -
Question:
When is the best time to apply Primesource Quinclorac?
Answer: The best time to apply Primesource Quinclorac is during the early stages of crabgrass growth, typically in late spring when temperatures consistently rise above 60°F. Applying during this time increases the likelihood of effective weed control as younger weeds are more susceptible to herbicide treatment. If necessary, a second application may be performed a few weeks later for persistent weeds. Monitoring your lawn regularly will help determine the optimal times for application and enhance your success in keeping your lawn weed-free. -
Question:
Can I use Primesource Quinclorac in the garden?
Answer: Primesource Quinclorac is designed specifically for use on lawns and is not intended for vegetable or flower gardens. Using it in non-target areas could harm beneficial plants, compromising your garden's growth. If you're dealing with weeds in garden beds, consider using alternative herbicides that are safe for ornamental plants or manually removing the weeds. Always read product labels carefully before use to ensure safe application and to protect your garden from unintended damage. -
Question:
How quickly does Primesource Quinclorac work?
Answer: Primesource Quinclorac begins working within a few days after application, with visible results typically seen within 7 to 14 days. The speed of weed browning and death may vary based on environmental conditions such as temperature and rainfall. For optimal results, ensure consistent watering and avoid mowing the lawn immediately after application. This waiting period allows the product to be absorbed effectively, leading to better weed control over time. -
Question:
Can I apply Primesource Quinclorac before or after rain?
Answer: It is recommended to apply Primesource Quinclorac when rain is not expected within 24 hours to allow for optimal absorption and efficacy. However, if it rains shortly after application, the herbicide may still work, but you may need to reapply depending on the amount of rainfall. To ensure the herbicide is absorbed correctly, choose a dry day for application, and monitor weather forecasts to avoid unexpected rainfall shortly after treatment. -
Question:
What safety precautions should I take while using Primesource Quinclorac?
Answer: While using Primesource Quinclorac, always wear protective gear such as gloves, goggles, and a mask to reduce exposure to the herbicide. Ensure that children and pets are kept away from the treated area until it dries. Read the safety instructions provided on the product label carefully to understand specific precautions and procedures. Store the herbicide safely in its original container, away from food and out of reach of children and pets, to avoid accidental exposure. -
Question:
How do I store Primesource Quinclorac?
Answer: To store Primesource Quinclorac properly, keep it in the original container with the label intact. Store it in a cool, dry place away from direct sunlight and extreme temperatures, as these conditions can degrade its effectiveness. Avoid storing it near food or in living spaces to ensure safety. If stored correctly, Primesource Quinclorac can maintain its potency for up to several years, making it a reliable option for periodic treatments during the growing season. -
Question:
Where can I buy Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer?
Answer: You can buy Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer from Ubuy. They offer a reliable platform for purchasing various products, including gardening supplies like herbicides. Ubuy provides convenient shipping options and customer service support, ensuring a smooth shopping experience for your weed control needs.
Primesource Weed Killers 51507PS1405 Editorial Review
Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces) is an effective solution for combating crabgrass, making it a top choice among users. Many have reported successful applications using this herbicide, particularly when combined with the recommended methylated seed oil, which helps enhance its performance on stubborn weeds. One user highlighted the efficiency of the product, stating it killed up to 98% of crabgrass after just one application, without harming their lawn grass. This liquid formulation allows for easy coverage over 500 square feet, ensuring extensive yard treatment. Users have also found it beneficial against other unwanted weeds, making it versatile for lawn care.
Customer Reviews & Ratings
730 customers ratings
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5 Star
71%
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4 Star
13%
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3 Star
7%
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2 Star
1%
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1 Star
8%
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Pros
- Effective crabgrass control in one application
- Safe for fescue grass when applied correctly
- Can treat up to 500 square feet
- Works well with methylated seed oil
- No need to pull dead weeds manually
Cons
- Handling precautions make it less convenient to apply
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Top selling Quinclorac Crabgrass Killer in Ireland
Last Updated on August 17, 2026
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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€ 86
Order now and get it around Tuesday, September 01
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 2 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Selective, post-emergent herbicide for broadleaf and grassy weeds.
- Can be applied to both residential and non-residential turf.
- Effective against multiple weeds, including crabgrass and dandelion.
- Safe for application 7 days before seeding and up to 28 days after emergence.
- Contains 18.92% active ingredient Quinclorac.
- Easy to use for effective weed management.
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