Best Fertilizer Weed Killers of 2026

Steven Taylor Avatar
Steven Taylor
Last Updated: Jan 15, 2026

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Fertilizer weed killers are a popular solution for homeowners who want to keep their lawns healthy and free of unwanted weeds. These products are designed to provide essential nutrients to the grass while also killing off weeds, making them an efficient two-in-one solution. Fertilizer weed killers come in various forms, including granules, sprays, and liquids, making them easy to apply to the lawn. They are also available in different strengths and formulas, allowing users to choose the best option for their specific needs. Overall, fertilizer weed killers are an effective and convenient way to maintain a beautiful lawn.

At a Glance: Our Top Picks

Scotts Turf Builder WinterGuard Fall Weed & Feed3 Cover #TOP 1
Scotts Turf Builder WinterGuard Fall Weed & Feed3
ftb score rating icon 9.8
Liquid Harvest Lazer Blue Cover #TOP 2
Liquid Harvest Lazer Blue
ftb score rating icon 9.7
Scotts Turf Builder Weed & Feed5 Cover #TOP 3
Scotts Turf Builder Weed & Feed5
ftb score rating icon 9.5

Top 5 Fertilizer Weed Killers

Scotts Turf Builder WinterGuard Fall Weed & Feed3

Scotts - 22446
4,000 sq. ft.
Scotts Turf Builder WinterGuard Fall Weed & Feed3 Cover
Scotts Turf Builder WinterGuard Fall Weed & Feed3, Weed Killer Plus Fall Fertilizer, 4,000 sq. ft., 11.43 lbs.

Scotts Weed & Feed3 is a powerful lawn care product that combines weed control and grass fertilization to ensure a beautiful and healthy lawn. With its ability to kill over 50 different types of lawn weeds, including clover, dandelion, and plantain, this product effectively eliminates unwanted plants from your lawn. Additionally, it provides essential nutrients to your grass, promoting its growth and ensuring a lush green appearance. The convenience of applying Scotts Weed & Feed3 to a moist lawn during the fall, when weeds are actively growing, allows for maximum effectiveness. Suitable for various grass types, including Bahiagrass, Bermudagrass, and Centipedegrass, this product covers an area of 4,000 sq. ft. Invest in Scotts Weed & Feed3 for a weed-free and vibrant lawn next spring.

What We Like
Weed killer and fertilizer combined
Kills over 50 types of lawn weeds
Promotes grass growth and appearance

Liquid Harvest Lazer Blue

00125
Blue
8 Fl Oz
Liquid Harvest Lazer Blue Cover
Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator 8 Ounces Perfect Weed Dye, Herbicide Fertilizer Marking Turf Mark and Marker

Liquid Harvest Lazer Blue is a concentrated spray pattern indicator that helps prevent over-application, detects product drift, and is easy to use without additional equipment. It is versatile and improves application accuracy by providing a visual guide. By using Lazer Blue, you can save time and money while optimizing your product usage.

What We Like
Prevents over-application
Detects product drift
Easy to use

Scotts Turf Builder Weed & Feed5

Scotts - 25021A
4,000 sq. ft.
Scotts Turf Builder Weed & Feed5 Cover
Scotts Turf Builder Weed and Feed5, Weed Killer Plus Lawn Fertilizer, Controls Dandelion and Clover, 4,000 sq. ft., 11.32 lbs.

Scotts Weed & Feed5 is a powerful weed killer and lawn fertilizer that not only eliminates existing weeds but also nourishes your lawn, making it thicker and preventing future weed growth. This product is best applied when weeds are actively growing and the daytime temperatures range between 60°F and 90°F. With its ability to control over 50 different lawn weeds, including dandelion, clover, and plantain, Scotts Weed & Feed5 is suitable for use on various grass types such as Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass. One 11.32 lb. bag can cover up to 4,000 sq. ft., providing comprehensive coverage for your lawn. Its weed-killing and fertilizing properties make it a convenient and effective solution for maintaining a healthy and weed-free lawn.

What We Like
Kills existing weeds
Feeds and thickens the lawn
Controls over 50 lawn weeds
#TOP 4

Yard Mastery 0-0-7 Granular Prodiamine Herbicide

PRODIAMINE-007
18lb
Yard Mastery 0-0-7 Granular Prodiamine Herbicide Cover
0-0-7 Granular Prodiamine Pre-Emergent Herbicide Fertilizer - 18lbs Covers 6,000 sq ft at 3 lbs/1,000 sq ft - Great for preventing crabgrass, POA annua (Annual Bluegrass), and More

The Yard Mastery Prodiamine Weed Preventer is designed to keep your lawn free from pesky weeds like crabgrass and annual bluegrass. By using this product, you can effectively stop these common weeds from growing, which helps maintain a healthy, green lawn throughout the year. It works well with all types of grass, including popular varieties like Bermudagrass, Zoysia, and Tall Fescue, so it fits many lawn types. The product contains a special ingredient that targets weeds in both spring and fall, giving you reliable protection across seasons. This makes lawn care easier and your yard more enjoyable.

What We Like
Effective weed prevention
Works on all grass types
Targets crabgrass and annual bluegrass
Seasonal weed control
#TOP 5

Quali-Pro MSM Turf Herbicide 8oz

MSM Turf 8
Blue
Quali-Pro MSM Turf Herbicide 8oz Cover
Quali-Pro MSM Turf Herbicide 8oz

Quali-Pro Turf Herbicide is a high quality formulation specifically designed for controlling broadleaf and grassy weeds on ornamental turf. It is ideal for use on lawns, parks, cemeteries, golf courses, and sod farms. With its low use rates, this herbicide delivers highly effective results on warm season turf. It is effective against a wide range of weeds including clover, dollarweed, bahiagrass, foxtail, henbit, bittercress, chickweed, and buckhorn. The herbicide is absorbed through the surface and roots, effectively stopping weed growth. It has been university tested and proven to be highly effective. With Quali-Pro Turf Herbicide, you can easily maintain a weed-free and beautiful turf with minimal effort.

What We Like
Effective against a wide range of weeds
Low use rates for highly effective results
Absorbed through surface and roots to stop weed growth
Buying Guide Image

How to Choose the Best Fertilizer Weed Killers

Introduction to Fertilizer Weed Killers

Fertilizer weed killers, also known as herbicides, are a popular choice for gardeners and homeowners looking to maintain a healthy and weed-free lawn or garden. However, with so many different products on the market, it can be difficult to know which one is right for your needs. In this article, we will provide some tips on how to choose the best fertilizer weed killer for your situation.

Factors to Consider When Choosing a Fertilizer Weed Killer

There are a few key factors to consider when choosing a fertilizer weed killer. First and foremost, you should consider the type of weeds you are trying to eliminate. Different herbicides are designed to target specific types of weeds, so it's important to choose one that is effective against the weeds you are dealing with.

Another important factor to consider is the size of the area you are treating. Some herbicides are better suited for small areas, while others are better for large areas. Additionally, you should also consider the time of year and the climate in your region. Some herbicides are more effective in certain seasons or climates than others.

Types of Fertilizer Weed Killers

There are several different types of fertilizer weed killers on the market, each with its own unique benefits and drawbacks. Here are some of the most common types:

  • Contact herbicides: These herbicides are applied directly to the weed, and are typically effective at killing the weed within a few days. However, they do not prevent new weeds from growing, and they can also damage or kill nearby plants if applied improperly.

  • Systemic herbicides: These herbicides are absorbed by the weed and spread throughout its entire system, making them effective at killing the entire plant, including the roots. However, they can take several weeks to work, and they can also damage or kill nearby plants if applied improperly.

  • Pre-emergent herbicides: These herbicides are applied to the soil before weeds begin to grow, and they prevent weed seeds from germinating. They are typically effective at preventing weeds for several months, but they do not kill existing weeds.

Choosing the Right Fertilizer Weed Killer for Your Needs

When choosing a fertilizer weed killer, it's important to carefully consider the factors discussed above. Take the time to research the different options available, and consult with a knowledgeable expert, such as a gardening store employee or a professional landscaper, to find the best product for your needs.

Additionally, be sure to carefully read and follow the instructions on the herbicide label. Herbicides can be harmful to humans, pets, and the environment if used improperly, so it's important to use them safely and responsibly.

Conclusion

Choosing the right fertilizer weed killer can be a daunting task, but by considering the factors discussed above and taking the time to do your research, you can find the best product for your needs and keep your lawn or garden healthy and weed-free.

Frequently Asked Questions (FAQs)

1. Does fertilizer with weed killer work?

Yes, fertilizer with weed killer can be effective in controlling invasive weeds in your lawn. It is safe and practical to use this type of product if your yard is mostly grass and if crabgrass or broadleaf weed varieties are overtaking your lawn. The weed killer in the fertilizer will eliminate the unwanted plants, allowing your grass to reestablish itself.

2. When should I put fertilizer and weed killer on my lawn?

For best results, apply weed and feed in the spring after weeds start appearing. If you need to apply it again, wait until fall to give your lawn time to recover before winter. Avoid applying weed and feed to a newly seeded lawn until it has been mowed at least twice.

3. What is the strongest homemade weed killer?

A potent homemade weed killer can be made by combining dish soap, white vinegar, and salt. The combination of these ingredients works together to effectively kill weeds.

4. What kills the toughest weeds?

Glyphosate-based herbicides, such as those found in the Resolva Pro Xtra Tough Weedkiller range, are highly effective for killing tough weeds, including perennial weeds and woody plants.

5. What kills weeds permanently but not grass?

Tenacity herbicide is a popular choice for killing weeds in lawns without damaging the grass. It is specially formulated for cool-season turf and can be used as both a pre and post-emergent herbicide for various broadleaf weed and grass species.

6. Should I apply weed killer or fertilizer first?

It is recommended to apply weed killer before adding fertilizers to your yard. Weeds can negatively affect the health of your grass and plants, so it's important to eliminate them first. While lawn fertilizers are designed to enhance the nutrients of your grass, they can be harsh on weeds.

7. What is the best month to put down weed and feed?

The best time to apply weed and feed products, including regular lawn fertilizers, is during the last week of March or early April.

8. How do you permanently stop weeds from growing?

To permanently prevent weed growth, you can try various methods, including pulling weeds by hand, applying heat to compost weeds, using salt as a weed killer, managing weeds through irrigation, maximizing gardening tools, allowing weeds to decompose, and using homemade vinegar weed killer.

9. How do I permanently get rid of weeds in my gravel driveway?

Rock salt can be an effective and natural weed killer for gravel driveways. Simply sprinkle rock salt on the ground surrounding the weeds, and within a few days, the salt will kill them off.

Editor's Notes

During our fertilizer weed killer research, we found 24 fertilizer weed killer products and shortlisted 5 quality products. We collected and analyzed 493,165 customer reviews through our big data system to write the fertilizer weed killers list. We found that most customers choose fertilizer weed killers with an average price of $20.00.

The fertilizer weed killers are available for purchase. We have researched hundreds of brands and picked the top brands of fertilizer weed killers, including Scotts, Liquid Harvest, Yard Mastery, Quali-Pro. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Steven Taylor Avatar

Steven Taylor grew up in a small town called Beaufort in South Carolina and his passion for building and woodworking has led him to master the latest garden gadgets. He always holds every chance to patch up or sand down his beloved garden. There are various novel technologies in his articles.