Atticus Sertay Herbicide (1.25 oz) - Sulfosulfuron Weed Kill
✅ PROS
- Kills tough grassy weeds like ryegrass, poa annua, and fescue that most selective herbicides miss
- 1.25 oz bottle treats up to 1 acre — far more coverage per dollar than big-box liquid options
- Safe on established bermudagrass, zoysia, and St. Augustine when applied at labeled rates
❌ CONS
- Requires a surfactant — not included — or you risk uneven coverage and wasted product
- Slow visible results; expect 2-3 weeks before weeds fully die back, not instant knockdown
The Verdict
If you manage a warm-season lawn in the South, you already know the frustration: you spray a standard selective herbicide, and the broadleaf weeds die, but the grassy weeds — the ryegrass, the poa annua, the tall fescue clumps — just laugh at you. That’s exactly the gap Atticus Sertay fills. This is a sulfosulfuron-based herbicide, the same active ingredient found in the professional-grade Certainty, but at a fraction of the price per acre.
What you actually get
The box contains a single 1.25-ounce water-soluble packet. That’s it. No measuring cup, no surfactant, no sprayer. What that packet represents is significant: at the labeled rate of 0.75 ounces per acre, you’re getting nearly two full applications of a professional turf herbicide. For context, the comparable Certainty product runs roughly triple the cost for the same active ingredient. If you’re treating a standard suburban lot, this single purchase likely covers your entire season.
Real-world performance
Sulfosulfuron is a slow-acting systemic herbicide, and buyers consistently note this. One reviewer put it plainly: “Don’t expect to see results overnight. It took about two weeks before I noticed the ryegrass starting to yellow, and three weeks for full kill.” That’s not a defect — that’s how ALS-inhibitor herbicides work. They’re absorbed through the leaves and roots, then disrupt amino acid production until the weed starves out.
What matters more is what it kills. This is one of the few products that handles annual ryegrass, perennial ryegrass, poa annua, and tall fescue without nuking your bermudagrass or zoysia. Multiple buyers report using it to clean up winter overseeding that hung around too long into spring — a scenario that ruins the look of an otherwise pristine bermuda lawn.
The catch, and it’s an important one: you need a non-ionic surfactant. The label requires it, and several one-star reviews trace back to skipping this step. Without surfactant, the liquid beads up on waxy grass blades, giving you spotty coverage and a lawn that looks like a leopard. Buy a separate surfactant — it’s cheap, and it makes the difference between “worked great” and “wasted my money.”
Where it falls short
Beyond the surfactant requirement, there are two honest limitations. First, this is a pre-emergent and post-emergent grassy weed killer, not a broadleaf herbicide. If your yard is full of dandelions and clover, you need a separate product. Second, the 1.25-ounce packet is water-soluble but takes a few minutes to fully dissolve in the sprayer — buyers who rushed it ended up with clumps clogging their nozzles. Give it five minutes and stir.
One more consideration: do not use this on fescue lawns. It’s labeled for bermudagrass, zoysia, St. Augustine, and centipede. If you have a cool-season turf, this will kill your lawn. Read the label twice before mixing.
Who should buy this
This is for the southern lawn owner with a specific weed problem — someone who knows they have ryegrass or poa annua and wants a professional-grade solution without a professional-grade price tag. It’s also ideal for golf course superintendents or turf managers who need affordable bulk coverage. Skip it if you have a northern fescue lawn, if you’re looking for a broadleaf weed killer, or if you won’t invest in a surfactant.
FAQ
Q: How much area does one packet cover? At the labeled rate of 0.75 oz/acre, one 1.25-oz packet covers roughly 1.66 acres. For a typical 5,000 sq ft lawn, you’ll use about a third of the packet and have plenty left over for spot treatments.
Q: Can I use this on my fescue lawn? No. This is strictly for warm-season grasses. On tall fescue or Kentucky bluegrass, it will cause severe damage or complete kill.
Q: How long until I see results? Weeds begin yellowing in 7-14 days, with full dieback at 2-3 weeks. This is normal for sulfosulfuron — it’s a slow, thorough kill, not a quick burn.
The Verdict
Buy it if: You have a warm-season lawn with grassy weed pressure (ryegrass, poa annua, fescue) and want professional results at a fraction of the cost.
Skip it if: You have a cool-season lawn, need broadleaf control, or won’t use a surfactant.
Rating: 4.2/5 — The active ingredient works exactly as advertised, and the value per acre is outstanding. The surfactant requirement and narrow grass-safety window are real friction points, but for the right user, this is the best cost-per-acre grassy weed control you can buy without a commercial license.
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.