One Shot Weed & Grass Killer - 1 gal (AccuShot® Refill)

Spectracide® One-Shot™ Weed & Grass Killer with AccuShot® Sprayer works fast to kill unwanted weeds and grass. This powerful formula kills from the leaves to the roots and prevents regrowth for up to five months. Plus, it works quickly, with visible results same day. Clear out unwanted vegetation on walkways, driveways and patios. Avoid spraying this product onto desirable plants, lawn grasses, shrubs or trees. Spectracide® One-Shot™ Weed & Grass Killer's formula gives you control over weeds and grass, roots and all.

This formula refills your Spectracide® One-Shot™ Weed & Grass Killer with AccuShot® Sprayer. The extendable sprayer gives you precise control and a continuous spray. For best results apply during warm, sunny weather when weeds are actively growing and temperatures are above 60 degrees Fahrenheit. This formula is rain safe within 1 hour. Do not allow people or pets to touch treated plants until the spray has dried.

  • KILLS & PREVENTS WEEDS: One application kills and prevents weeds for up to 5 months
  • FAST-ACTING: Visible results same day
  • KILLS THE ROOT: Kills weeds and grasses down to the root
  • ACCUSHOT® REFILL: For use with refillable Spectracide® One-Shot™ Weed & Grass Killer2 With AccuShot® Sprayer bottle
  • ACCUSHOT® SPRAYER: Extendable sprayer gives you precise control and a continuous spray

Active Ingredients

Diquat Dibromide 0.090%
Imazapyr, Isopropylamine salt 0.148%
Dicamba, Dimethylamine salt 0.030%
Other Ingredients: 99.732%
Total: 100.00%
  1. Remove cap and replace with reusable AccuShot cap and Sprayer. Make sure sprayer cap is tightly closed before use.
  2. Twist nozzle to adjust spray from CLOSE to SPRAY or STREAM.
  3. Slide switch on hose plug counterclockwise to "OPEN."
  4. When priming the sprayer, hold sprayer level to the ground. Sprayer may not prime if it is held at an angle. Once primed, it will spray in any direction.

For use with reusable AccuShot Sprayer from Spectracide One-Shot™ Weed & Grass Killer2

  1. Aim toward target site, and away from people and pets.
  2. To improve accuracy, use slider to extend wand.
  3. Press the trigger to spray.
  4. Release the trigger to stop spray.

Twist nozzle completely to CLOSE position. 2. Turn hose plug switch clockwise to "CLOSED." 3. Secure sprayer tip down in holster. 4. Failure to adjust nozzle completely to CLOSE position and properly secure sprayer in holster may result in leakage and damage to property or injury to people or animals.

Keep reusable AccuShot Sprayer for use with Spectracide One-Shot™ Weed & Grass Killer3.

Use screwdriver to open battery compartment. 2. Remove used batteries and insert four new AA batteries in correct positions as marked per diagram inside of battery compartment. NEVER insert the positive end where the negative end belongs and vice versa. ALWAYS use a complete set of new batteries of the same type when replacing batteries. NEVER mix alkaline, carbon-zinc or rechargeable batteries. 3. Securely close battery compartment door. 4. Always follow manufacturer’s speci cations for use and disposal of batteries.


  • DO NOT submerge in water.
  • Before each use, inspect sprayer carefully, making sure hose is  exible and not kinked, worn or cracked and that all connections are tight. When storing sprayer for prolonged periods, remove batteries.

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
STOP. Read Entire Label Before Use.

Pets and people may re-enter treated area once sprays have dried.


  • DO NOT apply this product in a way that will contact any person or pet, either directly or through drift.
  • Keep people and pets out of the area during application.
  • Apply on a sunny day with temperatures above 60°F.
  • DO NOT apply to or allow product to drift onto desirable plants.
  • Only apply to areas where no vegetation is desired for one year.
  • Avoid product runoff to nearby desirable plants.
  • Protect desirable plants with a piece of plastic or cardboard.
  • If desirable plants are accidentally sprayed, wash plants with water immediately.
  • DO NOT apply near bodies of water, including  sh pools, ponds, lakes or streams.
  • DO NOT apply over the root systems of desirable plants. For trees and shrubs, DO NOT apply closer than twice the distance from the trunk to the dripline, as roots may be within this area.
  • DO NOT apply to slopes in landscape, as movement on soil surfaces may damage desirable plants downslope.
  • DO NOT apply next to a fence if desirable vegetation is growing on the other side, or if future planting is intended.
  • DO NOT use before planting lawns, fruits, vegetables,  owers or other plants because this product remains active in soil for up to one year.
  • In soils with heavy clay, weed control may exceed one year.
  • DO NOT use on desirable lawns.
  • The single max use rate is 1 gal of product per 500 sq ft (equivalent to 0.007 lb diquat dibromide, 0.012 lb imazapyr, isopropylamine salt and 0.002 lb dicamba, dimethylamine salt per 500 sq ft).
  • The maximum yearly use rate is 3 gal of product per 500 sq ft (a total of 0.021 lb diquat dibromide, 0.036 lb imazapyr, isopropylamine salt and 0.006 lb dicamba, dimethylamine salt per 500 sq ft).
  • The maximum number of applications per year is three.
  • The minimum reapplication interval is three months.


  1. Measure area to be treated.
  2. Calculate total area. To calculate total area:
  3. Apply evenly to areas where no vegetation or plant growth is desired for at least 12 months.


Apply to the following areas: driveways, gravel areas, patios, parking areas, brick walks, gravel walks, fence lines, curbs, rock landscapes, mulch areas and cracks in sidewalks where no vegetation is desired.


Use only where no vegetation growth is desired for at least one year. In soils with heavy clay, weed control may exceed one year. Re-treatment every three months may be necessary in areas of heavy rainfall. Does not kill all seeds, woody and semi-woody plants, and propagules in the soil, including tubers and rhizomes.

Pesticide Storage: Store in cool, dry area away from heat or open flame.
Pesticide Disposal: Nonrefillable container. DO NOT reuse or refill this container. If empty: Place in trash or offer for recycling if available. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.
If in Eyes:
  • Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye.
  • Call a Poison Control Center or doctor for treatment advice.
If on Skin or Clothing:
  • Take off contaminated clothing.
  • Rinse skin immediately with plenty of water for 15-20 minutes.
  • Call a Poison Control Center or doctor for treatment advice.
Have the product container or label with you when calling a Poison Control Center or doctor, or going for treatment. You may also contact 1-800-917-5438 for emergency medical treatment information.
Hazards to Humans and Domestic Animals
Causes moderate eye irritation. Avoid contact with eyes or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. Prolonged or frequently repeated skin contact may cause allergic reactions in some individuals.
Environmental Hazards
This pesticide is toxic to aquatic invertebrates. To protect the environment, DO NOT allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters. Applying this product in calm weather when rain is not predicted for the next 24 hours will help ensure that wind or rain does not blow or wash pesticide off the treatment area. Rinsing application equipment over the treated area will help avoid runoff to water bodies or drainage systems.
NOTICE: To the extent consistent with applicable law, buyer assumes all responsibility for safety and use not in accordance with directions.
Questions & Comments?
Call 1-800-917-5438 or visit our website at