Hi-Yield Grass Killer

Hi-Yield Grass Killer, manufactured by VPG, is a systemic selective herbicide that quickly eliminates grassy weeds such as Bermudagrass or Foxtails without injuring flowers, shrubs, trees, and other ornamental foliage.

As a systemic herbicide, the product can be sprayed over desirable plants infested with grassy weeds or directly on weeds to effectively eliminate the listed weeds within a short period.

Hi-Yield Grass Killer is a successful product that kills weeds within several days, but it can be increased with the addition of an oil concentrate.

Tools Needed

You will need to use a backpack, pump, or hose-end sprayer.

How to Use

• Step 1: Wait to mow your yard several days before application. The height of your weed should be 1 foot before spraying. Determine how much Hi-Yield Grass Killer you need by measuring the square footage of the treatment area. To do this, measure the length and width of the application site in feet and multiply them together (length X width = square footage). Hi-Yield Grass Killer can be applied at the rate of 1 oz. of product per gallon of water per 1,800 sq. ft. For a hose-end sprayer application, add 1 oz. of product per 1 oz. of oil concentrate surfactant per 1,800 sq. ft. For the addition of surfactant during broadcast or pump sprayer applications, mix 1 oz. of product plus 1 oz. of oil concentrate surfactant per 1 gallon of water per 1,800 sq. ft.
• Step 2: Fill your broadcast or pump sprayer halfway with the required amount of water, then add the appropriate amount of Hi-Yield Grass Killer. Fill the sprayer the rest of the way with the remaining amount of water and agitate until well mixed until you are ready to spray. For a hose-end sprayer, attach the sprayer to the end of your garden hose and fill it with the measured amount of product and surfactant.
• Step 3: Apply Hi-Yield Grass Killer to areas where unwanted grassy weeds are growing, preferably on a fan-spray setting for backpack or pump sprayers to ensure even application. For areas around sensitive plants, performing a spot treatment with a handheld pump sprayer is recommended to avoid spray drift.

Where to Use

Hi-Yield Grass Killer can be used on and around flowers, plant beds, landscapes, evergreens, individual shrubs, trees, fruits, vegetables, ornamental groundcovers, and bedding plants within residential lawns. Refer to the label to learn which specific vegetables and fruits can be treated with this product.

This product does not control sedge (including Nutsedge or Nutgrass), Annual Bluegrass, or broadleaf weeds. Red Fescue, Chewings Fescue, Hard Fescue, and Dichondra Turfs are also tolerant to this product.

When to Use

Use during warm-weather when rainfall is predicted within 24 hours after application. Apply this product when grassy weeds are actively growing, not exceeding the minimum of days from application to harvest when used on vegetables and fruits.

Cool-weather, drought, and heat stress will slow the activity and results of Hi-Yield Grass Killer.

Safety Information

Hi-Yield Grass Killer is safe to use around children or pets when applied according to the product label instructions. Always wear the appropriate personal protective equipment (PPE) when mixing or applying this product.

Do not allow people or pets to come into contact with the treated area until the spray has dried. 

Special Considerations

This product must not be applied near or on Azaleas (var. Snow), Japanese Privet, Potentilla, Snow in Summer, Red Oak, White Oak, and ornamental grass.

Applications on listed fruits and vegetables can only be done with a tank-type sprayer. Second reapplications may be necessary for these listed fruits and vegetables, except for peanuts, root vegetables, and strawberries.