How To Get Rid Of Bermuda Grass In St. Augustine?

Are you disheartened by bermuda grass taking over your lush green st Augustine lawn?

Invading Bermuda grass is a common and hurting problem in the South, where the st. Augustine lawns are all along. To get rid of bermudagrass in st. Augustine grass is not much easy but many realistic strategies can help to get over this problem.

Before getting directly into the methods for controlling Bermuda grass, let’s get a bit of knowledge on Bermuda grass growth pattern. Understanding the growth pattern will literally help you in managing it with a substantial amount of diligence.

Bermuda grass is a fast-growing, smooth turf grass that is primarily growing in golf and playing stadiums. Furthermore, it needs more maintenance and fertilizer for proper growth. It spreads via seed, stolon (above ground runners), and rhizomes (underground root system). 

Controlling bermudagrass in st. Augustine grass can be overwhelming for you because both belong to the grass family so any herbicide will kill both of them. 

That’s why we build this guide on some strategic methods to get rid of bermudagrass in st. Augustine lawns.

Let’s get started.

Bermuda grass taking over st Augustine

Controlling the bermudagrass in St. Augustine lawns can be approached in two ways as suppressing or limiting the bermudagrass growth and killing it to the end. Both of these methods have unique modes of action and impact on the st. Augustine grass.

A good technician will go for only a realistic approach by utilizing the pre-emergent herbicides to kill the spreading bermudagrass – that is actually impossible to control permanently because of runners.

Controlling Bermuda grass in St. Augustine

Before sticking to a method for getting rid of Bermuda grass in lawns, you need to quantify the extent of Bermuda grass in your lawn. On the basis of observation, there come two types of invasion of Bermuda grass.

  • Least invasion

If the invasion of bermudagrass is less and present on some spots of lawn then it can be controlled by keeping st. Augustine turf healthy enough to suppress the Bermuda grass. 

To keep the st. Augustine grass healthy, mow the lawn at the highest setting, and this approach will stop the low heightened Bermuda blades and suppress their growth.

Furthermore, increased irrigation times will help st. Augustine to remain healthy and grow more than bermudagrass.

  • Extensive invasion

If the invasion of Bermuda grass in st. Augustine lawn is of extreme level then removing the part of turf and resodding is the better option.

The best option here is to start by applying non-selective herbicides to the extremely affected parts and kill the whole turf and remove the old one. Then re sod these parts by buying new and fresh sod.

controlling Bermuda Grass In

Methods to get rid of bermudagrass 

1. Ornamec Bermuda grass killer – PBI Gordon – Ornamec Over The Top Grass Herbicide

Ornamec Bermuda grass killer is a post-emergent herbicide for controlling the unwanted grasses in lawns, trees, and shrubs. 

It is also known as an Over-the-top herbicide as it works as post-emergent control for killing almost 500 species and a variety of plants and grasses. 

Ornamec Bermuda grass killer selectively kills the emerged annual grasses as well the perennial grasses like Bermudagrass, johnsongrass, quackgrass.

The best practice to use this miracle herbicide is Over-the-top applications on groundcovers, ornamentals, and flower beds.

2. Round-up for killing Bermuda grass

The round-up herbicide is majorly used for killing weeds and herbs in any type of crops, lawns, and flower beds. Glyphosate is the active ingredient in Roundup that acts on the actively growing plants and moves to tissues of plants.

It will inhibit the very specific enzymes to produce the proteins for growth and plants go to yellowing and eventually death in some days. To control invasive plants like Bermuda grass, repeated applications are often needed with the spot treatment.

3. Managing Bermuda Grass Naturally 

Controlling the Bermuda grass from infesting your lawn through natural means is the most realistic approach. In this technique, the primary or true turf grass is to keep healthy by providing all means of growth like fertilizer and irrigation.

To prevent the Bermuda grass in st. Augustine lawn, mowing of lawn at highest mowing height, irrigating the lawns with 6 inches of water twice a week with proper fertilization are the techniques.

4. Vinegar solution for killing Bermuda grass

Another effective method for killing Bermuda grass in lawns and flower beds is by spraying Vinegar solution. 

To get maximum results, the application of a 10% vinegar solution on the grass or weeds would be enough to eradicate them organically.

But there is a caution in adopting this method that vinegar is a non-selective weed killing method so it would also kill your lawn grass too along with Bermuda grass.

Does roundup kill Bermuda grass?

Yes, the roundup is the best Bermuda grass killer. Glyphosate is the active agent of roundup that actively kills the grass weeds in lawns and flower beds.

The best time to apply roundup is during spring to fall because Bermuda grass is in a state of dormancy during these days. You just need to spray the roundup on leaves for ensuring maximum absorption. 

What herbicide kills Bermuda grass?

Glyphosate is the most active and best herbicide for killing Bermuda grass. Bermuda grass is a tough and persistent grass in terms of killing, as it spreads by runners and rhizomes. So, the only effective solution for killing Bermuda grass is using glyphosate.

What is the best Bermuda grass killer?

Ornamec 170 herbicide is the best Bermuda grass killer. It is a selective herbicide that kills the targeted plants and grasses only and does not disturb the other plants. It is an effective herbicide for killing perennial grasses like Bermuda grass.

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