--- product_id: 110126047 title: "Quinclorac 1.5 Select Liquid Crabgrass Killer 7.5 Ounces" brand: "primesource" price: "S$78" currency: SGD in_stock: true category: "Primesource" url: https://www.desertcart.sg/products/110126047-quinclorac-1-5-select-liquid-crabgrass-killer-7-5-ounces store_origin: SG region: Singapore --- # Up to 90 days weed control Selective post-emergent action Covers 1000 sq ft per bottle Quinclorac 1.5 Select Liquid Crabgrass Killer 7.5 Ounces **Brand:** primesource **Price:** S$78 **Availability:** ✅ In Stock ## Summary > 🌿 Kill weeds, not your vibe — stay flawless all season long! ## Quick Answers - **What is this?** Quinclorac 1.5 Select Liquid Crabgrass Killer 7.5 Ounces by primesource - **How much does it cost?** S$78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/110126047-quinclorac-1-5-select-liquid-crabgrass-killer-7-5-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 - • **Trusted & Rated:** Highly rated by users with a 4.3-star average, making it a reliable choice for lawn care pros. - • **Safe for New Growth:** Apply from 7 days before seeding to 28 days after emergence without harming tolerant grass varieties. - • **Dual Absorption Power:** Absorbed through foliage and roots for thorough, systemic weed elimination. - • **Long-lasting Weed Defense:** Enjoy up to 3 months of effective crabgrass and broadleaf weed control without reapplication. - • **Precision Turf Protection:** Formulated for both residential and commercial turf, including golf courses and sod farms, ensuring your lawn stays pristine. ## Overview Primesource Quinclorac 1.5 Select is a powerful, selective liquid herbicide designed to control crabgrass and broadleaf weeds in turfgrass. With 18.92% active quinclorac, it offers up to 90 days of post-emergent control, safe for use on various turf types including golf courses and sod farms. Its systemic action targets weeds through both foliage and roots, ensuring comprehensive eradication while being safe for newly seeded or overseeded lawns. ## 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. Quinclorac 1.5L Select™ is an auxin agonist and is classified as a quinoline carboxylic acid. It is absorbed by foliage and roots and translocated throughout the plant. The control symptoms exhibited by broadleaf weeds include leaf and stem curl or twisting, and chlorosis. Susceptible grasses demonstrate stunting, chlorosis, and gradual reddening followed by necrosis and death. Apply Quinclorac 1.5L Select™ to actively growing weeds as post-emergent broadcast or spot sprays using the turf species, rate and growth stages indicated on the label. The use of Quinclorac 1.5L Select™ before or after seeding or overseeding a turf area will not significantly interfere with the turfgrass seed germination and growth of those grass types identified as tolerant or moderately tolerant on the label. ## Features - Quinclorac 18.92% - Residential and Non-Residential Turfgrass, Golf Course, Sod Farms - Provides up to 90 days of control ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KYVGH9V | | Active Ingredients | Herbicide, Quinclorac | | Best Sellers Rank | #61,155 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #348 in Weed Killers | | Brand Name | Primesource | | Coverage | 1000 square feet | | Customer Reviews | 4.3 4.3 out of 5 stars (472) | | Included Components | Herbicide | | Item Form | Liquid | | Item Weight | 7.8 Ounces | | Liquid Volume | 7.5 Fluid Ounces | | Manufacturer | Prime Source | | Model Number | 51507PS1275 | | Part Number | 51507PS1275 | | UPC | 653341837097 | | Unit Count | 7.5 Ounce | ## Product Details - **Active Ingredients:** Herbicide, Quinclorac - **Brand:** Primesource - **Item Form:** Liquid - **Item Weight:** 7.8 Ounces - **Liquid Volume:** 7.5 Fluid Ounces ## Images ![Quinclorac 1.5 Select Liquid Crabgrass Killer 7.5 Ounces - Image 1](https://m.media-amazon.com/images/I/71g1HgB9wUS.jpg) ## Questions & Answers **Q: Will this product eliminate tprpedo grass without damaging surronding Bermuda grass?** A: This product is safer to use on Bermuda than Tenacity. It did not kill my Bermuda. See my review for pics. **Q: Why are there two containers in one? One container has a .5 oz of liquid and the other container has 7.5 oz of liquid. Which liquid is which?** A: The product comes with a specialized container called a tip and pour. It allows the user to measure the amount of product to be dispensed from the container. To use, simply squeeze the bottle and the liquid will fill the smaller reservoir to the desired application amount. **Q: How long before you should mow** A: Per the Manufacturer's directions: DO NOT mow 2 days before or after applying Quinclorac 1.5L Select to maximize weed control and minimize potential turf injury. Clippings from the first three mowings after application should be left on the treated area. **Q: When can you spray this on your grass** A: Quinclorac is a post emergent poison- I recommend applying early spring-early summer (depending on your region and when your last frost is). ## Frequently Bought Together - Primesource Quinclorac 1.5 Select Liquid Crabgrass Killer 7.5 Ounces - Southern Ag Methylated Seed Oil (MSO) Surfactant (Quart - 32oz) - Southern Ag Surfactant for Herbicides Non-Ionic, 16oz, 1 Pint --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/110126047-quinclorac-1-5-select-liquid-crabgrass-killer-7-5-ounces](https://www.desertcart.sg/products/110126047-quinclorac-1-5-select-liquid-crabgrass-killer-7-5-ounces) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-07-18*