Top 5 Ranked Products
We analyzed millions of Amazon products to handpick the top recommendations just for you.

#1 Ranked
The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control - Covers up to 5,800 sq ft (18 lb)
Price: $43.88
Rating: ★★★★★
ASIN: B07NZ2BMMK
Score: 95%
Overview:
The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is a specialized product designed to prevent the growth of various weeds in lawns and gardens. With a coverage area of up to 5,800 square feet, this 18 lb granular formulation is particularly effective for early spring and fall applications. Its active ingredient, prodiamine at a concentration of 0.48%, offers professional-grade weed control, making it suitable for both residential and commercial use. The DG Pro formulation enhances its efficacy by ensuring a higher density of particles per square inch, which contributes to its superior performance in weed prevention.
This product is specifically engineered to combat both grassy and broadleaf weeds, including common nuisances like crabgrass and poa annua. However, it's important to note that Barricade does not eliminate existing weeds; its effectiveness lies solely in preventing new growth. Made in the USA, it reflects a commitment to quality and performance, appealing to users seeking reliable weed control solutions for their outdoor spaces.
Pros:
- Professional-Grade Efficacy: Contains 0.48% prodiamine for strong prevention against a variety of weeds.
- Wide Coverage: Effectively covers up to 5,800 sq ft, making it suitable for large areas.
- Advanced Formulation: DG Pro formulation allows for superior performance with more particles per square inch.
Cons:
- Seasonal Application: Best suited for early spring and fall, which may restrict usability throughout the year.
- Potential Over-Application Risks: Requires careful application to avoid damage to desirable plants if misused.

#2 Ranked
Preen Garden Weed Preventer - 22 lb. - Covers 3,520 sq. ft.
Price: $40.43
Rating: ★★★★☆
ASIN: B0BYT7NQC4
Score: 95%
Overview:
The Preen Garden Weed Preventer is a granular herbicide designed to inhibit weed growth in garden beds and landscaping areas. With a coverage of 3,520 square feet, this 22 lb. product provides a long-lasting solution, promising to stop weeds before they establish for up to three months. It is formulated to be safe around a wide variety of established plants, including over 200 types of flowers, vegetables, trees, and shrubs, making it a versatile choice for gardeners looking to maintain a healthy garden without harming their plants.
The product can be applied at any time during the spring, summer, or fall, offering flexibility for gardeners. However, it is important to note that this weed preventer does not kill existing weeds, which means that it is best used as a preventive measure rather than a solution for an already weed-infested area. Additionally, it is not suitable for use on lawns, limiting its application in mixed-use landscapes.
Pros:
- Long-lasting protection: Stops weeds before they start for up to 3 months.
- Plant-safe formulation: Safe for use around over 200 established flowers, vegetables, trees, and shrubs.
- Flexible application: Can be applied anytime in spring, summer, or fall.
Cons:
- Not effective on existing weeds: Does not kill existing weeds, requiring prior removal for best results.
- Limited to garden use: Not suitable for application on lawns, which may restrict its use in mixed garden areas.
- Granular application: May require additional effort for even distribution compared to liquid herbicides.

#3 Ranked
Scotts WeedEx Prevent with Halts, Crabgrass Preventer, Pre-Emergent Grassy Weed Killer, 5,000 sq. ft., 10.06 lbs.
Price: $24.98
Rating: ★★★★☆
ASIN: B07KXLD8VL
Score: 87%
Overview:
Scotts WeedEx Prevent with Halts is a pre-emergent grassy weed killer designed to effectively prevent crabgrass and other common weeds in your lawn. This product is particularly beneficial when applied in early spring, ensuring that it acts before the weeds germinate, thereby providing season-long protection. Additionally, it can be applied in the fall to combat winter weeds, making it a versatile option for year-round lawn care.
This product comes in a 10.06 lb. bag, which is capable of covering up to 5,000 square feet, making it suitable for medium to large lawns. However, it is essential to note that it should not be applied to certain grass types, including Dichondra and Bentgrass, which may limit its usability for some homeowners. Overall, Scotts WeedEx Prevent with Halts offers a proactive approach to weed management, focusing on prevention rather than reactive measures.
Pros:
- Season-Long Protection: Prevents crabgrass and other weeds throughout the growing season.
- Versatile Application: Can be used in both spring and fall for different types of weed prevention.
- Large Coverage Area: Covers 5,000 sq. ft., making it cost-effective for larger lawns.
Cons:
- Limited Grass Compatibility: Not suitable for use on Dichondra and Bentgrass lawns.
- Timing Sensitivity: Requires precise timing for application to be effective.
- Chemical Composition: May raise concerns for those preferring organic lawn care solutions.

#4 Ranked
Syngenta Tenacity Herbicide - Pre-Emergent and Post-Emergent Weed Control, 8-oz. Liquid Weed Killer for Lawns and Turf Grasses, Active Ingredient Mesotrione Herbicide
Price: $46.00
Rating: ★★★★☆
ASIN: B005DUTNF0
Score: 85%
Overview:
Syngenta Tenacity Herbicide is a versatile liquid weed control solution designed for both pre-emergent and post-emergent applications. With the active ingredient mesotrione, this herbicide effectively targets 46 different species of broadleaf weeds and grasses, making it a comprehensive option for lawn care. Unlike many other herbicides, Tenacity can be applied during seeding, allowing users to establish new lawns or overseed existing turf without the risk of damaging desired grass species. Its unique formulation, derived from a naturally occurring compound, ensures that it selectively eliminates unwanted weeds while preserving the health of the lawn.
The ease of use is another significant advantage of Tenacity, featuring a user-friendly measuring and pouring system that eliminates the hassle of lost syringes. With a proven track record, Tenacity has been trusted by lawn care professionals for over two decades, with a high satisfaction rate reported among users. This product is particularly beneficial for homeowners and lawn care operators looking to maintain a weed-free lawn without compromising the integrity of their turf.
Pros:
- Broad-Spectrum Weed Control: Effectively targets 46 weed species, providing extensive coverage.
- Application Flexibility: Can be used during seeding, allowing for new lawn establishment without damage.
- Selective Control: Prevents new weed emergence while protecting desired grass types.
Cons:
- Limited to Specific Turfgrass: Users must refer to the label for tolerant turfgrass species, which may limit application.
- Requires Precise Measurement: Although easy to measure, incorrect dosing can impact effectiveness.
- Potential for Environmental Concerns: As with all herbicides, there may be concerns regarding environmental safety and non-target species.

#5 Ranked
Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 5,000 sq. ft., 10.06 lbs. (2-Pack)
Price: $41.98
Rating: ★★★★☆
ASIN: B087QT2LFM
Score: 85%
Overview:
Scotts Halts Crabgrass & Grassy Weed Preventer is a pre-emergent weed killer designed to effectively prevent the germination of various lawn weeds, including crabgrass, foxtail, and spurge. This product is suitable for application in early spring or fall, ensuring comprehensive coverage throughout the growing season. Each 10.06 lb. bag treats an area of up to 5,000 sq. ft., making it a practical choice for homeowners looking to maintain a healthy lawn. Its formulation is compatible with all grass types, except for Dichondra and Bentgrass, allowing for versatile use across different lawn environments.
The effectiveness of Scotts Halts lies in its ability to create a barrier that inhibits weed growth before it starts. The product is resilient to weather conditions, as rain, snow, or freezing temperatures post-application do not diminish its performance. This characteristic provides users with peace of mind regarding application timing. However, it is important to note that the product does not target existing weeds, which may require separate treatment.
Pros:
- Prevention of Multiple Weeds: Effectively prevents a wide range of lawn weeds, ensuring a cleaner lawn.
- Weather Resilience: Performance is unaffected by rain or snow after application, allowing for flexible timing.
- Wide Coverage: Each bag covers 5,000 sq. ft., making it efficient for larger lawns.
Cons:
- Limited Grass Type Compatibility: Not suitable for use on Dichondra or Bentgrass, limiting its applicability.
- Timing Sensitivity: Requires specific timing for application to be effective, which may be challenging for some users.
Product Information & Tips
Overview
Zoysia grass is a popular choice for lawns due to its drought resistance and ability to thrive in various soil types. However, like all grass types, it is susceptible to weeds, which can hinder its growth and overall health. Pre-emergent herbicides are essential for preventing weed seeds from germinating, making them a vital tool for maintaining a healthy zoysia lawn.
Selecting the best pre-emergent for zoysia involves understanding the specific needs of this grass type and the types of weeds commonly found in its growing environment. Factors such as timing, application method, and the active ingredients in the herbicide play a crucial role in the effectiveness of weed control while ensuring the safety and health of the zoysia grass.
Key Criteria
1. Active Ingredients:
- The effectiveness of a pre-emergent herbicide largely depends on its active ingredients, which determine its ability to target specific weed species without harming zoysia grass.
2. Timing of Application:
- Proper timing is critical for the success of pre-emergent herbicides. Applying them too early or too late can result in ineffective weed control, so understanding the growth cycle of both zoysia and weeds is essential.
3. Soil Compatibility:
- Different pre-emergents may react differently in various soil types. It is important to choose a product that is compatible with the soil conditions where zoysia is grown to ensure maximum effectiveness.
4. Longevity of Control:
- The duration of weed prevention offered by a pre-emergent is vital. A longer-lasting product can reduce the frequency of applications needed throughout the growing season.
5. Safety for Zoysia:
- Some herbicides can negatively impact the health of zoysia grass. Selecting a pre-emergent that is specifically formulated for use with zoysia ensures that the grass remains healthy while controlling weeds.
Frequently Asked Questions
Q1: What is a pre-emergent herbicide?
A1: A pre-emergent herbicide is a chemical treatment that prevents weed seeds from germinating by creating a barrier in the soil.
Q2: When should I apply pre-emergent for zoysia grass?
A2: It is best to apply pre-emergent herbicides in early spring, just before the soil temperatures reach 55°F, which is when many weed seeds begin to germinate.
Q3: Can I use pre-emergent herbicides on newly seeded zoysia?
A3: No, pre-emergents should not be applied to newly seeded zoysia until it is established, typically after the grass has been mowed at least two to three times.
Q4: How often should I apply pre-emergent for zoysia?
A4: Generally, pre-emergent herbicides should be applied once in early spring and possibly again in late summer, depending on the product's longevity and the weed pressure.
Q5: Are there organic options for pre-emergent herbicides?
A5: Yes, there are organic pre-emergent options available, such as corn gluten meal, which can help suppress weed growth without synthetic chemicals.