Effective Post Emergent Crabgrass Killer Options

post emergent crabgrass killer

If you’ve noticed crabgrass invading your turf and lawn areas, it’s crucial to take action quickly. Controlling crabgrass through effective post-emergent methods can help maintain a healthy and weed-free lawn. In this article, we will explore some highly recommended post-emergent crabgrass killers to help you combat this pesky weed.

Crabgrass is known for maturing quickly, making it more difficult to control as it grows. That’s why utilizing post-emergent herbicides specifically designed for crabgrass control is essential. These herbicides target and kill crabgrass after it has emerged, providing effective results.

Maintaining a healthy turf stand is the first line of defense against crabgrass invasion. Mowing your lawn at a higher height and regular fertilization can help create a dense turf, making it harder for crabgrass to take hold.

Some highly effective post-emergent crabgrass killers include Drive (quinclorac), Acclaim Extra (fenoxaprop-ethyl), and Tenacity (mesotrione). These herbicides have proven track records in delivering results in controlling crabgrass at any growth stage. However, it’s important to note that post-emergent control is generally more effective when the crabgrass is younger.

By choosing the right post-emergent crabgrass killer and following proper lawn care practices, you can ensure your lawn remains healthy, vibrant, and free from the clutches of crabgrass. Are you ready to take your yard back? Let’s explore the importance of post-emergence control further in the next section.

Importance of Post-Emergence Control

Controlling crabgrass in lawns and turf areas requires effective post-emergence control. With its fast growth rate, crabgrass can quickly take over and compete with desirable grass species for space, nutrients, and sunlight. This makes it essential to address crabgrass growth as soon as it emerges.

Maintaining a dense and healthy turf is key to preventing crabgrass invasion, but even the best preventive measures can sometimes fail. This is where post-emergent herbicides come into play. These herbicides are specifically formulated to eliminate crabgrass after it has emerged, providing an effective solution for weed control.

Timing is crucial when it comes to post-emergence crabgrass control. Applying herbicides while crabgrass is still young and actively growing can enhance their effectiveness. In some cases, multiple applications may be necessary to achieve optimal results.

By implementing post-emergence control measures, you can significantly reduce the presence of crabgrass and ensure the health and aesthetics of your lawn or turf. Remember to follow the recommended lawn care practices in tandem with herbicide applications for the best outcome.

Recommended Herbicides for Post-Emergence Control

When it comes to effective post-emergence control of crabgrass, there are a few recommended herbicides that can help you tackle this pesky weed. One highly effective option is quinclorac, which is available in products like Drive. Quinclorac is known for its ability to control crabgrass at any growth stage. It is not only safe to use on new seedings but can also enhance the activity of other broadleaf herbicides when tank-mixed.

Another herbicide to consider for post-emergence crabgrass control is fenoxaprop-ethyl. While it may not be as effective on larger or more mature crabgrass, fenoxaprop-ethyl can still be a viable option for managing this invasive weed.

Mesotrione is also highly effective for post-emergence control of crabgrass. This herbicide targets a wide range of weeds, including crabgrass, and can help you achieve a weed-free lawn.

No matter which herbicide you choose, make sure to follow the label instructions for safe and effective use. It is recommended to apply herbicides when crabgrass is actively growing for optimal control.

Controlling Crabgrass at Establishment

When establishing new turfgrass, it is crucial to have effective control over crabgrass. The presence of crabgrass can hinder the growth and development of the newly seeded turfgrass. To prevent crabgrass growth during establishment, the use of pre-emergent herbicides is recommended.

Two effective pre-emergent herbicides for controlling crabgrass during establishment are Tupersan and Tenacity. These herbicides can be applied at the time of seeding to minimize weed invasion and provide the newly seeded turfgrass with a competitive advantage.

controlling crabgrass at establishment

The application of pre-emergent herbicides like Tupersan and Tenacity creates a barrier in the soil, preventing the germination and growth of crabgrass seeds. This significantly reduces the competition for nutrients, water, and sunlight, allowing the newly seeded turfgrass to establish successfully.

By controlling crabgrass at the establishment stage, you can ensure the long-term health and beauty of your lawn. Implementing pre-emergent herbicides as part of your turfgrass establishment process is an effective strategy to create a weed-free environment for your new turfgrass to thrive.

Other Post-Emergent Crabgrass Control Methods

Aside from herbicides, there are other effective methods for controlling crabgrass in your lawn. One option is hand pulling crabgrass, which can be particularly useful for small areas. After rainfall when the soil is moist, the roots of crabgrass are easier to remove, making hand pulling more successful.

Proper lawn care is also essential for preventing and controlling crabgrass. Regular mowing at a higher height helps shade the soil and prevent crabgrass seeds from germinating. Additionally, adequate fertilization promotes the growth of a dense and healthy turf that can outcompete crabgrass.

However, it’s important to note that hand pulling and lawn care practices may not be sufficient for larger areas with a significant crabgrass infestation. In these cases, herbicides are often necessary for effective control. By combining both manual control methods and herbicide applications, you can achieve optimal results in managing crabgrass.

Advantages of Hand Pulling Crabgrass

  • Effective in small areas
  • Allows for precise weed removal
  • No reliance on chemicals
  • Cost-effective

Tips for Lawn Care to Prevent Crabgrass

  1. Mow your lawn to a height of 3-4 inches
  2. Fertilize regularly to promote healthy turf growth
  3. Aerate to improve soil conditions and reduce crabgrass germination
  4. Overseed thin areas to promote dense turf cover
  5. Water deeply and infrequently to encourage deep root growth

Recommended Post-Emergent Herbicides for Crabgrass Control

When it comes to controlling crabgrass, there are several post-emergent herbicides available that can help you achieve effective results. These herbicides have been specifically formulated for crabgrass control and can be a valuable tool in your lawn maintenance routine. Below are some recommended options:

  • Pylex: Designed to target crabgrass and other grassy weeds, Pylex is known for its effectiveness and fast action. It can provide reliable control when applied according to the label instructions.
  • Acclaim Extra: This herbicide contains fenoxaprop-ethyl, which targets crabgrass and other annual grass weeds. Acclaim Extra is known for its selective action, meaning it targets the weed while leaving desirable grasses unharmed.
  • Drive XLR8: Drive XLR8 is a popular choice for post-emergent crabgrass control. Its active ingredient, quinclorac, targets crabgrass at any growth stage and provides long-lasting control.
  • Dismiss NXT: Dismiss NXT is another effective herbicide for crabgrass control. It contains sulfentrazone and quinclorac, providing a double action against crabgrass and other broadleaf weeds.

It’s important to remember that herbicides should always be used according to the label directions to ensure safe and effective control. Be sure to read and follow the instructions carefully to maximize the effectiveness of these recommended post-emergent herbicides.

What Post Emergent Crabgrass Killer Is Safe to Use on Bermuda Grass Lawns?

When looking for the best post emergent crabgrass killer safe for Bermuda grass lawns, it’s important to consider using a product specifically labeled as safe for Bermuda grass. It’s also crucial to follow the application instructions carefully. Remember to follow up with the best Bermuda grass fertilizer to promote healthy growth.


In conclusion, post-emergence methods play a crucial role in controlling crabgrass and maintaining a healthy and weed-free lawn. Effective herbicides such as Drive, Acclaim Extra, and Tenacity have proven to be reliable options for tackling crabgrass infestations. However, achieving optimal results requires following recommended lawn care practices and making multiple herbicide applications when necessary.

By diligently applying these post-emergent crabgrass killers and implementing proper lawn care techniques, you can transform your yard into a pristine, weed-free oasis. Remember to read and adhere to the label instructions of each product to ensure safe and effective use.

Don’t let crabgrass take over your lawn. Take control of the situation by utilizing these post-emergent herbicides and enjoy a beautiful, healthy lawn all year round.

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