Controlling Creeping Bentgrass: Tips and Techniques

You may love to have a beautiful lawn, but it can be frustrating when creeping bentgrass takes it over. This invasive species is hardy and aggressive, spreading quickly and choking out other grasses. Fortunately, there are effective control strategies you can use to get rid of this unwanted plant. In this article, we'll explore the best techniques for controlling creeping bentgrass and restoring your lawn to its former beauty.

The Basics of Creeping Bentgrass

Creeping bentgrass (Agrostis stolonifera) is a cool-season grass that's often used on golf courses and athletic fields. It's prized for its fine texture and ability to create a smooth playing surface. However, it can also be a nuisance in lawns and gardens, where it spreads by above-ground runners called stolons. Creeping bentgrass is tolerant of close mowing, drought, and cold temperatures, making it difficult to control.

Six Strategies for Controlling Creeping Bentgrass

1. Hand Pulling

If you have only a few patches of creeping bentgrass, hand pulling may be an effective control method. Use a garden trowel or weeding tool to dig up the stolons and roots, being careful not to disturb surrounding plants. Make sure you remove all the plant material, including any pieces that may have broken off during the digging process. Dispose of the plant material in a sealed plastic bag to prevent it from re-rooting.

Hand pulling can be effective for small infestations of creeping bentgrass.

2. Solarization

Solarization is a non-chemical control method that uses the heat of the sun to kill creeping bentgrass. To solarize an area, cover it with clear plastic sheeting and secure the edges with soil or rocks. Leave the plastic in place for six to eight weeks during the hottest part of the summer. The heat will build up under the plastic and kill the grass, as well as many weed seeds and disease organisms.

Solarization can be an effective way to control creeping bentgrass without chemicals.

3. Chemical Control

Chemical control is the most common method for controlling creeping bentgrass. Herbicides containing glyphosate or fluazifop-p-butyl are effective on this species. Glyphosate kills the entire plant, while fluazifop-p-butyl targets only the grasses and leaves other plants unharmed. Follow label instructions carefully and apply the herbicide when the grass is actively growing. Avoid spraying on windy days or when rain is expected within 24 hours.

Glyphosate herbicide can be effective for controlling creeping bentgrass.

4. Overseeding

Overseeding with a more desirable grass species can help to crowd out creeping bentgrass. Choose a species that's adapted to your climate and soil conditions, and make sure it has a similar growth rate and texture to the grass you're trying to replace. Apply the seed at a rate of two to three pounds per 1,000 square feet, and keep the area well watered until the new grass is established.

Overseeding with desirable grasses can help to control creeping bentgrass.

5. Cultural Practices

Cultural practices like proper mowing, fertilization, and irrigation can help to reduce the incidence of creeping bentgrass. Mow at a higher height to shade out the grass, and avoid mowing during hot, dry periods. Fertilize regularly with a nitrogen-rich fertilizer to encourage the growth of desirable grasses. Irrigate deeply and infrequently to encourage deep root growth and discourage shallow-rooted weeds like creeping bentgrass.

Cultural practices like proper mowing and fertilization can help to reduce the incidence of creeping bentgrass.

6. Combination Approach

The most effective control strategy for creeping bentgrass may be a combination of several methods. For example, you could start by hand pulling small patches, then solarize the area to kill any remaining grass and seeds. Afterward, overseed with desirable grasses and follow cultural practices to promote their growth. If necessary, use chemical controls selectively to target any remaining creeping bentgrass.

A combination of control methods may be necessary to effectively manage creeping bentgrass.

Creeping bentgrass can be a persistent and frustrating problem in lawns and gardens, but with the right control strategies, you can regain control of your green spaces. Whether you choose hand pulling, solarization, chemical control, cultural practices, or a combination approach, the key is to be persistent and diligent in your efforts. By following these tips and techniques, you can enjoy a healthy, lush lawn free of this invasive species.

: grass control, lawn restoration, weed management, turfgrass maintenance