10 Best Lawn Pre Emergents 2026 in the United States

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is designed specifically for preventing weeds rather than eliminating existing ones. It is effective against a variety of grassy and broadleaf weeds, including crabgrass, poa annua, goosegrass, and henbit, making it versatile for maintaining a clean lawn. The product contains 0.48% prodiamine, a powerful herbicide, and is meant to be applied in early spring and fall, giving you a seasonal approach to weed prevention. Each 40-pound bag covers up to 12,880 square feet, offering extensive coverage for larger lawns or multiple applications.

The DG Pro formulation enhances the product's performance by providing more particles per square inch, ensuring better coverage and effectiveness. Additionally, being made in the USA adds a level of trust and quality assurance to the product. However, it is important to note that this product won't help with existing weeds, so you might need a separate solution for those. Furthermore, care should be taken to apply it correctly to avoid affecting desired plants.

The granular form makes it easy to spread, but handling a 40-pound bag might be cumbersome for some users. This pre-emergent is a robust and effective solution for those looking to prevent a wide range of weeds in their lawn.

Scotts Turf Builder Bonus S Southern Weed & Feed2 is a combination weed killer and lawn fertilizer, designed for southern lawns. It effectively targets a variety of common weeds like dollarweed, clover, and dandelion while also feeding the grass to promote strong root development.

This product is formulated specifically for use on grasses such as St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass, ensuring safety for these types of desired plants. With a coverage of 10,000 sq. ft., its 34.48 lb. bag can treat large lawn areas. It's crucial to apply this product to a dry lawn when both grass and weeds are actively growing, followed by immediate watering to activate its ingredients.

Users should be cautious as it is only suitable for specific grass types and may not be effective or safe for use on other varieties. Its powder form might not be as convenient for everyone, and care must be taken to follow application instructions properly to avoid damaging the lawn.

Scotts Halts Crabgrass & Grassy Weed Preventer is designed to help you maintain a weed-free lawn by preventing the germination of various lawn weeds. This product excels in controlling a wide range of weeds such as crabgrass, foxtail, spurge, barnyardgrass, and others listed for use in early spring and fall. It is especially effective against moss (except in California), Poa annua, henbit, corn speedwell, and chickweed during the fall season.

Convenience is a key strength, as you can apply it to a dry lawn in either early spring or fall, and it remains effective despite rain, snow, or freezing weather following the application. This granule-based product covers up to 10,000 square feet, making it suitable for larger lawns. However, it is important to note that it is not safe for use on Dichondra or Bentgrass lawns.

Weighing 20.12 pounds, it is a manageable size for most users. Given its broad coverage, ease of application, and long-lasting effectiveness, this weed preventer is a solid choice for those looking to maintain a pristine lawn.