Hi-Yield Super Concentrate Killzall Weed & Grass Killer - Covers Large

In this review the Hi-Yield Super Concentrate Killzall is judged on reach and ease of use for homeowners and property managers who need to clear weeds over large areas. The bottom line: if you need a concentrated liquid that treats a lot of ground per bottle and works on grasses, broadleaf weeds and woody brush species, this product delivers coverage and a fast-drying surfactant system. It is not for lawns and requires a separate sprayer accessory, but for driveways, fence lines and large beds it is a practical, economical choice.

Key Features

• Controls multiple plant types: Effective on grasses, broadleaf weeds and woody brush species, making it useful for varied problem areas.
• Not for lawns: Labeled specifically to avoid lawn use, so it is suitable for non-turf areas like gravel, pavement edges and fence lines.
• Double-surfactant formula: A double-surfactant mixture dries on the plant fast to promote quick uptake and visible weed decline.
• High coverage per bottle: One gallon of concentrate can treat up to 25,600 sq ft, which reduces trips to the store and lowers per-square-foot cost.
• Concentrated liquid: The concentrate format makes it easy to mix to the needed strength for spot or broad application with a sprayer accessory.
• Label guidance: The product label contains application instructions to help match dilution and timing to the target species.

Who It's For

This product suits homeowners, landscapers and property owners who need to treat large non-lawn areas quickly and economically. People maintaining fence lines, driveways, gravel paths, industrial lots or large garden beds will value the high coverage per gallon and the concentrate format that reduces packaging waste and storage space.

It is not for people who want a lawn-safe solution or those who prefer ready-to-use sprayers that include the applicator in the package. Also, anyone who expects instant browning overnight should be aware that weed kill time can vary and follow-up may be required for heavy woody brush.

Pros & Cons

Pros

• High concentration and coverage makes it cost-effective for large properties.
• Works on a broad range of weeds, grasses and some woody brush species.
• Double-surfactant formulation helps the product dry on plants and start working faster.
• Easy to measure and mix for targeted or broadcast spraying when a sprayer is available.

Cons

• Not safe for lawns, limiting use to non-turf areas.
• Requires a separate spraying accessory and label reading for correct application, so beginners may need extra setup time.

Specifications

Brand	Hi-Yield
Product type	Concentrated weed and grass killer
Volume	1 gal
Coverage	Up to 25,600 sq ft per 1 gal
Targets	Grasses, broadleaf weeds, woody brush species
Application	Requires spraying accessory; see label

Our Verdict

The Hi-Yield Super Concentrate Killzall is a strong choice for anyone needing a high-coverage, concentrated weed control for non-lawn areas. Its double-surfactant mix and broad target list make it versatile and economical for large properties, though buyers should plan to purchase a sprayer and follow label directions closely.

Frequently Asked Questions

Can this be used on lawns?
No, the product label specifies do not use on lawns; it is intended for non-turf areas.

How much area does one gallon treat?
One gallon of the concentrated liquid can treat up to 25,600 sq ft when mixed and applied per the label instructions.

Do you need special equipment to apply it?
Yes, a spraying accessory is required for application since the product is a concentrate designed for mixing and spraying.