9 Best Pre Emergent Crabgrass Killers 2025 in the United States

The Scotts Halts Crabgrass & Grassy Weed Preventer is a pre-emergent weed killer designed to target and prevent the germination of various lawn weeds including crabgrass, foxtail, and spurge. One of its key strengths is its broad coverage area, efficiently treating up to 10,000 sq. ft. of lawn with a single 20.12 lb. bag.

Its granular form allows for easy application, and it can be used on almost all grass types, except for Dichondra and Bentgrass, which provides versatility for different lawn owners. The product's timing flexibility is also noteworthy, as it can be applied in both early spring and fall, and its resistance to weather conditions like rain or snow after application ensures consistent performance.

Scotts Halts Crabgrass & Grassy Weed Preventer offers good coverage and ease of use, making it a useful option for lawn care.

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is a reliable product designed specifically for preventing weeds, not eliminating them. With 0.48% prodiamine, it offers professional-grade control and is best applied in early spring and fall. The granule form makes it user-friendly for homeowners who prefer an easy application process.

One of its standout features is the DG Pro formulation, which allows for more particles per square inch, ensuring better coverage and performance across up to 5,800 square feet. This makes it an excellent option for medium to large lawns. Additionally, being made in the USA adds a level of trust in its quality and consistency.

However, it’s important to note that it will not affect existing weeds, so users must ensure their lawn is weed-free before application. In terms of safety and environmental impact, the use of prodiamine is generally safe when applied correctly, but as with any herbicide, care should be taken to follow all instructions to avoid unintended harm to desirable plants and wildlife. This product is best suited for those looking to prevent a wide range of weeds, including crabgrass, in a proactive lawn care regimen.

The Preen Extended Control Weed Preventer offers a convenient solution for those looking to manage weed growth, including crabgrass, with minimal effort. One of its most impressive strengths is its long-lasting action, as it claims to block weeds for up to six months with just a single application. This makes it particularly appealing to those who prefer a 'set it and forget it' approach to lawn care. The product is formulated in granule form, which is generally easy to apply, thanks to a flip-top applicator cap that allows for a hassle-free distribution over the intended area.

Covering 805 sq. ft. with its 4.93 lb packaging, it's suitable for small to medium-sized areas, making it ideal for suburban homeowners. However, it's important to note that the product is not designed for use on flower seeds, lawns, vegetable gardens, or any food-producing plants. This limitation might not make it suitable for those looking to treat or maintain traditional lawns or edible gardens.

In terms of safety and environmental impact, users should follow the manufacturer's directions closely to avoid unintended harm to non-target plants or the surrounding environment. While it can be used around a wide variety of perennials, groundcovers, shrubs, and trees, its lack of availability in New York suggests there may be regulatory or environmental concerns. Potential buyers should consider the specific plants they wish to protect and the areas they need to cover before purchase, due to its specific application restrictions.