Top 5 Best Lawn Weed Killers Reviews

If you have a lawn and you want to kill weed, a lawn weed killer is the best choice. Of course, you cannot use common weed killers, or your lawn will be killed too. Lawn weed killers are only engineered to kill weeds in your lawn but not kill the lawn, so they are selective herbicides.

When it comes to choose the best weed killer for lawns, sprays are better than granule and powdered types. When the liquid is sprayed on a plant, the leaves of the plant will absorb the liquid as soon as possible. Of course, killers that contain organic and are non-toxic are good. However, before applying them to your lawn, first you need to carefully read its label directions and then follow them strictly, especially when it comes to pets and kids. Most chemically prepared lawn killers contain 2,4-D which is also the main ingredient. 2,4-D was used as a jungle defoliant. Although it is USADA rated safe, it is highly recommend wearing gloves during spraying. Of course, you also need a dust mask to prevent inhaling harmful fumes. When applying, you also need to pay attention to the gusts of wind, because the wind might carry some of the formula onto the plants which you don’t plan to kill.

Best Lawn Weed Killer

If you need a lawn weed killer, the best lawn killer you choose should kill all lawn weed types, including dandelions, clover, chickweed, crabgrass, as well as other broadleaf weeds. Crabgrass is the most common weed type in a lawn, so killing it is very important. And it is not easy to distinguish crabgrass from regular lawn grass types, because they are genetically similar to each other. We’ve made this list of top 5 best lawn weed killers for you to choose from, based on their effectiveness, safety, ratings and customer reviews.

1. Bayer Advanced 704140 All-in-One Lawn Weed and Crabgrass Killer Concentrate

If you are looking for the best lawn weed killer to kill crabgrass in your lawn, this one is the best for you. It is recommended to add a teaspoon of liquid soap to the killer, because this can make it more effective. The mixture will stick to crabgrass leaves easily and effectively. Broadleaf weeds will be killed after 1 application, while crabgrass needs 2 or 3 application to kill it. After one hour of application, it is rain safe. However, it is not recommended to mow for 2 days before or after application. It is also recommended to apply it after 2 or 3 days of watering or rain. Pay attention to these tips and it is more effective. Although there are other weed killers for laws, not one can be better than this.

2. Ortho Weed B Gon Max Plus Crabgrass Control

This best weed killer for lawns can effectively control all the weeds in a lawn. This weed killer comes in ready-to-use varieties and concentrate. After only one application, broadleaf weeds can be effectively killed. To kill crabgrass, more than 2 applications will do better. Before applying it, make sure the grass leaves are dry. And it is rain safe and you can water your lawn after one hour. Of course, don’t mow 2 days before or after. You can trust it.

3. Garden Weasel AG Crabgrass Killer

This product is perfect for those who need the safest lawn weed killer to kill crabgrass. The main ingredient is powdered cinnamon, so it is organic and safe to wildlife, pets and kids. EPA even proves it is safe to use. To make it more effective, you should apply it in the morning when there is dew on the grass leaves. You just need to sprinkle its powder towards the crabgrass. After 2 to 4 days, you will see the crabgrass begin to wither and die. It is also effective to many other weeds, like basket grass, clover and chickweed. However, it may be not effective to kill other broadleaf weeds. You can read its label carefully to make sure it can kill the weeds in your lawn.

4. Southern Ag 2,4-D Amine Weed Killer Selective Broadleaf Weed Control

If you don’t want to pay much money for a weed killer, we also choose this Southern AG 2,4-D Amine Weed Killer on our list. It will be the best bargain. This killer contains a 46% of 2,4-D weed killer. This means even if you use less, you will also get the same effective results. It is effective to kill all broadleaf weeds, as well as many woody plants. However, it is not effective to kill crabgrass. If you mainly need a killer to kill crabgrass, this is not the right one.

5. Spectracide Weed Stop For Lawns Plus Crabgrass Preventer Granules

For some people who want ease of use in the best weed killer for lawn, this one is your best choice. You can put its granules in a spreader and it can kill more than 200 types of different broadleaf weeds. Similar to Southern AG 2,4-D, it also doesn’t kill crabgrass. However, if you apply it in the spring, it is able to kill crabgrass before crabgrass begins to sprout. However, as a granule, it may be not effective than a spray. Therefore, it is highly recommend applying several applications to get the right results. And this one is very cheap.


If you are looking for the best weed killer for lawns, you can choose one of them. If you want to kill all the weeds, you also can find the best weed killer on another article.