SKU: 5816531662

Certainty Herbicide Weed Killer

Sale price$125.99 Regular price$139.99
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

Certainty Herbicide Weed KillerCertainty Herbicide is a selective, post emergent herbicide designed to effectively target and control a wide range of stubborn weeds in warm season turf. It provides professional grade results while keeping desirable grasses healthy and thriving. Lawn Types Suitable for Certainty Herbicide Certainty is ideal for use on the following warm season turfgrasses: Bermudagrass Bahiagrass Buffalograss Centipedegrass Kikuyugrass Seashore paspalum St.

Certainty® Herbicide is a selective, post-emergent herbicide designed to effectively target and control a wide range of stubborn weeds in warm-season turf. It provides professional-grade results while keeping desirable grasses healthy and thriving.

Lawn Types Suitable for Certainty Herbicide

Certainty is ideal for use on the following warm-season turfgrasses:

  • Bermudagrass
  • Bahiagrass
  • Buffalograss
  • Centipedegrass
  • Kikuyugrass
  • Seashore paspalum
  • St. Augustinegrass
  • Zoysiagrass

This makes it a great choice for residential lawns, commercial landscapes, sod farms, and golf course applications.

Why Use Certainty Herbicide?

Certainty is specifically formulated to control hard-to-kill weeds without harming established turfgrass. It effectively manages:

  • Purple and yellow nutsedge
  • Kyllinga species
  • Globe and annual sedge
  • Tall fescue
  • Perennial ryegrass
  • Annual bluegrass (Poa annua)
  • Virginia buttonweed (suppression)

Its precision targeting allows for the removal of invasive weeds while maintaining the health of your lawn.

Best Time to Apply

For optimal results, apply Certainty when weeds are actively growing. Avoid mowing for at least two days before and after application to allow maximum absorption and effectiveness.

Mixing Rates and Application Guidelines

Proper mixing and application ensure the best results. Here are the recommended rates:

  • Sedge Control: Apply .028 ounces/1,000 sqft when weeds have reached the 3- to 8-leaf stage. If necessary, a second application of .028 ounces/1,000 sqft can be made four or more weeks after the first treatment.
  • Tall Fescue Control: Apply .028 ounces/1,000 sqft, followed by a second application of .028 ounces/1,000 sqft 21 to 28 days later. A single application of .045 ounces/1,000 sqft can also be used.
  • Dallisgrass Suppression (in Bermudagrass): Apply .028 ounces/1,000 sqft of Certainty combined with 2 lbs. of MSMA per acre and 0.25% nonionic surfactant (1 quart per 100 gallons of spray solution). A repeat application 2 to 4 weeks later improves results.
  • Annual Bluegrass (Poa annua) Control: Apply .028-.045 ounces/1,000 sqft, using the higher rate for dense infestations.
  • Overseeded Perennial Ryegrass Transition: Apply .028 ounces/1,000 sqft, followed by a second application 21 to 28 days later. For a single application, use 045 ounces/1,000 sqft.

For best results, always mix Certainty thoroughly with water and use a nonionic surfactant to improve herbicide absorption.

Certainty® Herbicide is the go-to solution for managing difficult-to-control weeds in warm-season turf. Its selective formulation ensures superior weed management without damaging desirable grasses. Whether you're tackling nutsedge, Poa annua, or invasive fescue, Certainty delivers professional-quality results, helping your lawn look its best year-round.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5816531662

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E J
Battle Creek, US
★★★★★ 5
Decent customer service
Color: Absolute Black, Size: Z1 Motor + Batteries
My frother worked well for a time and through several battery changes. Then the blending stick/wand fell off and completely detached from the handheld part/motor. I contacted customer service and they originally tried to get me to upgrade via a sales tactic and pay the difference for a 'premium model'. I said no thank you and did not ask for anything else. They contacted me back and offered to send me two of the ones I had so that I would have a back up - but without the batteries or stand. I did appreciate their prompt responses, just less gimmicks would have been nice.
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Reviewed in the United States on April 9, 2026
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Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
awesome company
Color: Black, Size: Z1 Motor + Batteries
I ordered one of the frothers and it stopped working in about 1 month. The company was so pleasant to work with and immediately sent me a new one to replace the one I had. They offered me an option of a rechargeable one with a little more cost or the battery powered free. I chose the battery powered and received it quickly. They are an awesome company with great prices and stand behind their products. Nice to see this in a company. Will be buying more items from them in the future!!
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Reviewed in the United States on May 4, 2026
K
Verified Purchase
kaity
Bozeman, US
★★★★★ 5
Small fan, serious power
Color: Black
I bought the Honeywell Turboforce Fan for my bedroom, and I’m honestly impressed with how powerful this little thing is. Don’t let the compact size fool you — it moves a lot of air. On the lowest setting it’s perfect for a gentle breeze while sleeping, and the higher settings can easily cool down a medium-sized room or help circulate AC much more efficiently. The 90-degree pivoting head is a great feature. I can angle it upward for better air circulation or point it directly at me when it’s extra hot. It’s lightweight, easy to move around, and doesn’t take up much space on a desk or nightstand. It can also be wall-mounted, which is a nice bonus. Noise level is reasonable. On low, it’s actually a pleasant white noise. Medium and high are louder, but not in an annoying way — just the sound of strong airflow. Build quality feels solid for the price, and it’s been running daily without any issues. For the cost, this fan seriously overperforms. If you need a compact, affordable, and powerful fan, this is a no-brainer. I’d absolutely buy it again.
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Reviewed in the United States on April 11, 2026
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Gianluca
Boise, US
★★★★★ 5
Great price and very quiet
Color: Black
I use the Honeywell TurboForce HT-900 in my home office to help with airflow around my computer setup, and it’s been a solid performer for the price. Despite its small size, it moves a surprising amount of air. On high, it pushes a strong, focused stream that actually reaches across the room. Medium is what I use most often since it balances good circulation with reasonable noise, and low is quiet enough to run in the background without being distracting. Noise levels are generally acceptable. Low and medium are fairly quiet with a consistent hum, while high is noticeably louder but still not unbearable for short bursts. It’s also very simple to position and use. The head tilts easily, so you can aim airflow exactly where you need it, and the compact size makes it easy to place on a desk without taking up much space. Overall, it’s a straightforward, no-frills fan that does its job well. Strong airflow, simple controls, and good value for the price.
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Reviewed in the United States on April 30, 2026
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Brandy Mullane
Grantham, US
★★★★★ 5
Powerful and long lasting
Color: Black
I purchased a blue colored one in May 2022 and it finally went out a few days ago. I ran this thing almost constantly as im going through menopause and it came to be a staple at my bedside. 4 years of running ALL THE TIME! Great little fan with a ton of airflow to keep me cool during night sweats. And it has just enough white noise to distract from outside noise. Also, the motor power never differentiated after using for so long. It was still strong. I just ordered another one to replace it and cant wait for it to arrive so I can sleep again! Only thing is they only have bakck or white instead of blue this time but thats ok as long as it performs.
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Reviewed in the United States on May 14, 2026

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