What Weeds Does 2,4-D Kill in Lawn? Before It’s Too Late

What-Weeds-Does-24-D-Kill-in-LawnAre you looking to get rid of weeds on your lawn? If so, you might be wondering what specific weeds 2,4-D kills. Well, 2,4-D is a weed killer that is commonly used to control a variety of plants, including lawns.

This herbicide works by inhibiting the plant’s growth and preventing it from moving or spreading. As a result, 2,4-D can kill specific weeds that growth could be affected.

Keep this information in mind if you’re looking to use this herbicide to kill weeds on your lawn.

What Weeds Does 2,4-D Kill in Lawn – Safety Tips

2,4-D is an herbicide that kills many types of weeds and grasses. Many people are looking for the question of does 2,4-D kills grass. It works by disrupting the plant’s ability to manufacture proteins.

2,4-D can be used on lawns, gardens, and around the home to kill broadleaf weeds such as dandelions, clover, and plantain. In addition to killing broadleaf plants, 2,4-D also kills grasses, but only if they’re young and actively growing. If you apply it at the wrong time of year or in cold weather when the grass isn’t growing, it won’t work against your lawn.

Applying 2,4-D on Lawns

You can apply 2,4-D on your lawn. The most important thing is to ensure that you are using it correctly and according to the instructions on the label. If you don’t follow those instructions, it can cause damage to your lawn.

It’s also important to know what type of weeds you have so that you can properly target them with 2,4-D. If you don’t know what kind of weed you have, it’s better not to use this chemical because it may damage your grass instead of killing off the unwanted plant(s).

Cautions For Usage

Protective Clothing

Always wear protective clothing when working with herbicides such as 2,4-D. This includes long pants and sleeves as well as gloves and eye protection. Make sure all items are specifically designed for this type of chemical so they won’t leach into your skin or eyes while using them. Also, ensure that your clothing is washed separately from another laundry, so it doesn’t come into contact with anything else until it has been thoroughly rinsed out.

Newly Seeded Lawns

2,4-D is not recommended for use on newly seeded or sodded lawns.

Children Or Pets Surrounding

It’s safe for use around pets and children when used according to directions. However, avoid spraying it on your pet’s favorite spot or where children play.

Does 2,4-D Kill Grass

2,4-D is a broadleaf herbicide that kills most broadleaf weeds. It works by interrupting photosynthesis and inhibiting cell division, causing the weeds to die. This weed killer is nonselective and will kill any plant it comes in contact with, including grasses. Therefore, it must use carefully and as directed on the label. Be aware that 2,4-D degrades quickly in sunlight.

Instructions Are Necessary to Read

2,4-D weed killer is not safe to use on all types of weeds. It kills broadleaf plants such as dandelions, clover, and crabgrass but does not kill the grass. Before applying this herbicide to your lawn, check with your local nursery or garden center to see which weeds it will kill and where it can use.

Chemicals Used in

2,4-D weed killer is a systemic herbicide that works by entering the plant’s vascular system and preventing oxygen from reaching the plant’s foliage. When this happens, the plant dies within two to four days.

The active ingredient in 2,4-D is 2,4-dichlorophenoxyacetic acid (2,4-D). Other chemicals in this family include triclopyr and dicamba. These herbicides are used on lawns or fields to kill broadleaf weeds such as dandelions (Taraxacum officinale), clovers (Trifolium spp.), and crabgrass (Digitaria spp.).

List of Weeds May Effect

A common weed killer that contains this active ingredient is Ortho Weed B Gon Weed Killer for Lawns & Gardens.

2,4-D can be used to kill many types of weeds. However, some weeds are more resistant to 2,4-D than others.

The following are some of the most common weeds that 2,4-D will kill:

Alfalfa Bermuda grass Box Elder Canada thistle
Chickweed Clover Coffee senna (Cassia occidentalis) Common morning glory (Ipomoea purpurea)
Corn speedwell (Veronica arvensis) Crabgrass (Digitaria spp.) Curly dock (Rumex Crispus) Dandelion (Taraxacum officinale)
Millet Perennial ryegrass coffee weed Sunflower
Box elder Hemp Water shield Sweet clover


Weeds Doesn’t Kill By 2,4-D

2,4-D does not kill all weeds. Some grassy weeds have shown resistance to this herbicide.

You may resort to other weed control methods if these weeds are present on your lawn.

The following is a list of common lawn weeds that 2,4-D won’t kill:

  • Bermuda grass
  • Centipede grass
  • Nutsedge (yellow and purple)
  • Annual bluegrass
  • Bentgrass
  • Bluegrass
  • Crabgrass

Rest other weeds that are not so common but which may irritate your lawn, are:

Quackgrass Foxtail Goldenrod Canada thistle Dog fennel
Pineapple weed Goosegrass Horsetail Oxalis (red)
Italian ryegrass Johnson grass Milkweed Ripgut grass Russian knapweed Bracken fern Buttonwillow Baby tears Bermuda grass Blackberry
Wild barleys Saltbush Sandbur Soft chess Tansy ragwort Alkali mallow
Poison oak Watergrass Wild oats Yarrow


Facts to Know

Weed and Feed Products

2,4-D is an effective broadleaf herbicide that can be used on most turf grasses, including Bermuda grass and Kentucky bluegrass. It works by causing extensive cell death in the target plants but does not harm grassroots or rhizomes (underground stems). This means that it doesn’t have any lasting effects on your lawn once applied, so there’s no need to worry about reseeding or replanting after using 2,4-D.

Mixing with other products

It is often used with other herbicides, such as triclopyr and clopyralid. These are sometimes referred to as “weed and feed” products because they will kill the weeds while fertilizing your lawn at the same time.

It’s important to use the right type of 2,4-D for your particular lawn because some formulations are not safe for all types of grasses.

Right Formula of Mixing

  • The most effective way to apply 2,4-D is with a sprayer. 
  • You should mix it with water following the manufacturer’s instructions on the label and use it on your lawn when the temperature is above 60 degrees Fahrenheit and when there are no rain clouds in sight.
  • Avoid applying the herbicide when temperatures are below 50 degrees Fahrenheit or above 80 degrees Fahrenheit because this may harm your grass or other plants on your property.


Thanks for spending your time on our article and reading with keen interest. In this article, we have given a list of those weeds which may kill by using 2,4-D. Besides successful killing, there are a few weeds that are stubborn and didn’t kill by this chemical spray.

So that we have provided you the names of those too, it will be easier for you to save time and mix other products with 2,4-D while using. We highly appreciate you if you share your precious knowledge with us.

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