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Say Goodbye to Crabgrass with Ortho Crabgrass Killer

ortho crabgrass killer

What is Ortho Crabgrass Killer?

Ortho Crabgrass Killer is a powerful herbicide that helps to eliminate crabgrass from lawns and gardens. It contains a potent formula that targets the roots of crabgrass, preventing it from growing back in the future.

How Does Ortho Crabgrass Killer Work?

Ortho Crabgrass Killer works by penetrating the soil and attacking the root system of crabgrass. It contains a special active ingredient called quinclorac, which is highly effective at killing crabgrass without harming other plants in the area.

When Should You Use Ortho Crabgrass Killer?

The best time to use Ortho Crabgrass Killer is in the spring or early summer when the crabgrass is actively growing. Apply the herbicide on a dry day, when there is no rain in the forecast for at least 24 hours. This will give the product enough time to penetrate the soil and kill the crabgrass.

How to Use Ortho Crabgrass Killer

To use Ortho Crabgrass Killer, follow these simple steps:

  1. Identify the areas where crabgrass is growing.
  2. Mix the herbicide according to the instructions on the label.
  3. Apply the herbicide evenly over the affected areas using a sprayer or spreader.
  4. Wait at least 24 hours before watering the area to allow the herbicide to take effect.


When using Ortho Crabgrass Killer, it's important to take the following precautions:

  • Wear protective clothing, including gloves and a mask, when applying the herbicide.
  • Keep children and pets away from the area until the herbicide has dried completely.
  • Avoid spraying the herbicide on windy days to prevent drift onto other plants.

Benefits of Using Ortho Crabgrass Killer

Using Ortho Crabgrass Killer has several benefits, including:

  1. High effectiveness at killing crabgrass without harming other plants.
  2. Easy to use with clear instructions provided on the label.
  3. Long-lasting effects that prevent crabgrass from growing back for up to six months.
  4. Safe for use on most types of grass and ornamental plants.

Alternatives to Ortho Crabgrass Killer

If you're looking for an alternative to Ortho Crabgrass Killer, there are several options available. For example:

  • Scotts Halts Crabgrass & Grassy Weed Preventer: A pre-emergent herbicide that prevents crabgrass from germinating in the first place.
  • Green Gobbler Vinegar Weed & Grass Killer: A natural herbicide that uses vinegar as its active ingredient.
  • Spectracide Weed Stop For Lawns Plus Crabgrass Killer: A selective herbicide that targets crabgrass and other weeds while leaving your lawn unharmed.

In if you're struggling with crabgrass in your lawn or garden, Ortho Crabgrass Killer is an effective solution that can help you eliminate this pesky weed once and for all. By following the instructions on the label and taking the necessary precautions, you can use this herbicide safely and easily to achieve a beautiful, weed-free lawn.


Q1. Is Ortho Crabgrass Killer safe for pets?

A1. Ortho Crabgrass Killer is generally safe for pets after it has dried completely. However, it's best to keep pets away from the area while applying the herbicide and until it has dried.

Q2. How long does Ortho Crabgrass Killer take to work?

A2. Ortho Crabgrass Killer typically takes 1-2 weeks to working, but it can take up to four weeks for the effects to become fully visible.

Q3. Can I use Ortho Crabgrass Killer on my vegetable garden?

A3. No, Ortho Crabgrass Killer should not be used on vegetable gardens or other edible plants. It is designed for use on lawns and ornamental plants only.

Q4. Will Ortho Crabgrass Killer harm my grass?

A4. No, Ortho Crabgrass Killer is safe for most types of grass and will not harm your lawn when used according to the instructions on the label.

Q5. Can I plant new grass after using Ortho Crabgrass Killer?

A5. Yes, you can plant new grass after using Ortho Crabgrass Killer. Wait at least six months after applying the herbicide to plant new grass or other plants in the treated area.

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