Control Solutions Inc. 82004319 Eraser Weed & Grass Killer C

The Verdict

You’re staring at a fence line strangled by poison ivy, or a gravel driveway sprouting crabgrass like it’s going out of style. You want it dead — permanently. That’s exactly what Control Solutions Eraser Weed & Grass Killer C promises, and with 229 ratings averaging 4.6 stars, it’s delivering for most people. But let’s cut through the label claims and talk about what this concentrate actually does, how fast, and where it’ll bite you.

What’s Actually in the Jug

You get one gallon of amber concentrate in a sturdy jug with a child-resistant cap that doubles as a measuring cup. The active ingredient is glyphosate at 53.8% — the same workhorse chemistry found in Roundup, but at a significantly higher concentration than most retail formulations. This is professional-grade stuff, the kind landscapers buy in bulk.

As shown in the product image, the jug is plain and utilitarian. No fancy nozzle, no sprayer included. You’re expected to mix this yourself, and that’s the point — it’s a concentrate, not a ready-to-use product. One gallon mixes to 21 gallons of spray solution at the standard 5.5 ounces per gallon rate. That’s roughly 21,000 square feet of coverage, depending on how heavy you apply.

How It Performs in the Real World

Glyphosate is systemic, meaning it gets absorbed through the leaves and travels down to the root system. That’s why Eraser kills the whole plant rather than just browning the tops. Most buyers report visible wilting within 5-7 days, with complete kill in 2-4 weeks. One reviewer put it plainly: “Took about two weeks to fully see results, but everything it touched died. Completely. Including the roots.”

The 2-hour rainfast claim holds up in practice. That’s a genuine advantage over some competitors that wash away in 30 minutes if a sprinkle hits. For fence lines, driveways, patios, and along sidewalks, this is reliable.

The catch: You need a surfactant. Waxy-leaf weeds like poison ivy and mature broadleafs will bead the spray right off without it. A few drops of dish soap per gallon works, or buy a proper non-ionic surfactant. This is a hidden requirement that the label mentions but doesn’t emphasize enough. Skip it, and you’ll wonder why some weeds laugh at your application.

What Buyers Consistently Praise

The value proposition is the #1 theme in reviews. At roughly $40-50 per gallon, this makes 21 gallons of ready-to-use spray. Compare that to pre-diluted products at $8-10 per quart, and you’re saving 60-70% per application. One long-time buyer summed it up: “Been using this for three years. Nothing beats the price per gallon, and it kills everything I point it at.”

Buyers also repeatedly mention it works where other products failed. Johnsongrass, bindweed, wild blackberries — the tough stuff that laughs at vinegar-based organic sprays. Multiple reviewers specifically mention killing poison ivy and oak with repeat applications, which is no small feat.

Where It Falls Short

Patience is required. This is not a “spray and watch it die tomorrow” product. Full kill takes weeks, and some users mistake the slow start for failure. If you need instant gratification, look elsewhere.

The non-selective nature is a double-edged sword. One gust of wind, one careless spray near a flower bed, and you’ve got dead perennials. Several reviews mention this as a cautionary tale, not a product flaw, but it’s worth repeating: this stuff does not discriminate.

There’s also the surfactant issue I mentioned. Factor in an extra $10-15 for a proper surfactant if you’re tackling waxy-leaf species, or the product underperforms.

Who Should Buy This

Buy it if: You manage a property with persistent weed problems along fences, driveways, patios, or gravel areas. You’re comfortable mixing chemicals and storing a concentrate properly. You want professional results without paying landscaper prices.

Skip it if: You need quick cosmetic results for a one-time touch-up, you’re strictly organic, or you have a small yard where a quart of ready-to-use spray makes more sense than a gallon of concentrate sitting in your garage.

FAQ: Three Questions Shoppers Actually Ask

How long after spraying can I plant new grass or flowers? The label specifies waiting 7 days before seeding or planting in treated areas. The glyphosate deactivates on soil contact, but give it the full week for safety.

Is it safe around pets and kids? Once dry, it’s considered safe. The 2-hour rainfast window aligns with the drying time. Keep pets and children off treated areas until the spray has fully dried.

Will one application kill everything for good? Perennial weeds with deep roots may need a second application after 2-3 weeks. Annual weeds typically die with one dose. Seeds in the soil will still germinate — this kills growing plants, not future ones.

The Verdict

Rating: 4.6/5 — Control Solutions Eraser Weed & Grass Killer C is a professional-grade herbicide at a homeowner-friendly price. It’s not the fastest, and the surfactant requirement is an unadvertised extra cost, but nothing in this price range matches its kill spectrum and cost per gallon. For anyone with persistent weed problems on hardscape areas, this is the jug to keep in the garage.

Buy it if you want maximum value and are willing to wait 2-4 weeks for complete kill. Skip it if you need instant results or want a ready-to-use product without mixing.

Note: Prices fluctuate on Amazon. The 229 ratings at 4.6 stars have held steady over two years of sales, which says more than any single review could.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.