Product Reviews
Best Grass and Weed Killer: Three Jobs, Three Products
NC State: glyphosate reaches the roots and has little or no soil residual. Contact killers do neither. Decide which of the three jobs you actually have.
Non-Selective Systemic Herbicide (41% with surfactant included)
Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons Review
★★★★☆ 4.4/5
our editor rating how we score4.8/5 from 468 shoppers at Amazon — their number, not ours.
$68–$82
Typical price · 2.5 gallons of 41% concentrate — acreage volume
Affiliate links — see our disclosure. Commissions never influence verdicts.
41% glyphosate with the surfactant already in it, at acreage volume — the cheapest route to a systemic kill if you have the area to justify 2.5 gallons.
Our Verdict
Straightforward and the best value in the non-selective category if the scale fits. Glyphosate is systemic, so unlike the contact burndowns sold for hardscape it reaches roots and kills perennials rather than pruning them, and Purdue notes it has no soil activity — meaning nothing is left behind to harm a subsequent seeding or to prevent one. Surfactant is already included, so there is no separate adjuvant to buy for general use. At 2.5 gallons the cost per treated acre is well below quart bottles, and 4.8 across 468 ratings is a strong score. The reservations are about scale and discrimination rather than performance. This is far more herbicide than a suburban lot needs and it does not improve in storage. And it is non-selective: anything green it contacts dies, which on a windy day near a hedge or a lawn edge is the failure mode. For a fence line, a gravel yard, or killing off a lawn before renovation on genuine acreage, this is the sensible buy.
✅ Pros
- Systemic, so it kills perennial roots where contact burndowns only remove foliage
- No soil residual, per Purdue — a treated area can be seeded without waiting on the chemical
- Surfactant included, so no separate adjuvant purchase for general use
- 4.8 across 468 Amazon ratings, and the lowest cost per acre in this category
⚠️ Cons
- 2.5 gallons is far more than a suburban lot will use before it ages
- Non-selective — anything green it touches dies, including the lawn edge and the hedge
- Prevents nothing: the seedbank germinates as normal after treatment
- Overkill if you only need to spot-treat a driveway
Product type
Non-Selective Systemic Herbicide (41% with surfactant included)
Active ingredient
Glyphosate 41% with surfactant
Price range
$68–$82
Coverage
2.5 gallons of 41% concentrate — acreage volume
Best for
Acreage-scale non-selective work — fence lines, gravel yards, and lawn kill-off before renovation
our editor rating
4.4 out of 5
Where our facts come from
Registration confirmed, label text not read
EPA Reg. No. 103810-1-37686
The registration exists and we confirmed it, but no label document was available to read. Treat the concentration and general use pattern as sound and take rates from the container itself.
What we found when we read it
Registration confirmed 2026-08-05 in EPA PPLS as "Glyphosate 4 Extra" under 103810-1-37686 — an exact product-name match, and a distinctive enough name to rely on. EPA states there is no label for the registration, so NO label text has been read and the 41% figure in this record comes from the retail listing rather than from a label. We have CORRECTED this record's brand: it previously read Tide, and the confirmed registration is a distributor pack under distributor number 37686, not a Tide registration — Tide's own glyphosate is a different product (84229-37, Tide Glyphosate 41% Plus) and must not be conflated with this one. Two other 41% glyphosates circulate under similar names, Alligare's 81927-9 Glyphosate 4 Plus and Albaugh's 42750-61, and neither is this product.
Where this page and the container disagree, the container wins — the label is the legal authority on rates and restrictions. How to read one yourself.
Common questions
Common Questions
How much does Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons cost?
Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons typically runs $68–$82, covering 2.5 gallons of 41% concentrate — acreage volume.
What does Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons treat?
Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons targets perennial weeds, lawn kill-off, fence line vegetation, gravel weeds.
What is the active ingredient in Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons?
Glyphosate 41% with surfactant, registered under EPA Reg. No. 103810-1-37686.
What is the biggest downside of Generic (distributor pack) Glyphosate 4 Extra, 2.5 Gallons?
2.5 gallons is far more than a suburban lot will use before it ages
Real feedback
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