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

#1 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 (2)
Price: $99.99
Rating: ★★★★★
ASIN: B0DFDLZ4GS
Score: 97%
Overview:
Syngenta Tenacity Herbicide is a versatile liquid weed killer designed for effective pre-emergent and post-emergent control of a wide range of weeds in lawns and turf grasses. With its active ingredient, Mesotrione, this herbicide targets 46 different broadleaf weed and grass species, making it a powerful tool for maintaining healthy and attractive lawns. Its formulation allows for application at various growth stages of the weeds, providing flexibility for homeowners and landscapers alike.
The product's broad-spectrum weed control capability is particularly noteworthy, as it addresses common lawn nuisances such as crabgrass, clover, and dandelions. However, the absence of user reviews may leave potential buyers uncertain about its effectiveness and ease of use. Nonetheless, Tenacity's dual-action approach ensures that both existing weeds and those that may emerge are managed effectively, promoting a greener, healthier lawn.
Pros:
- Broad-Spectrum Control: Effectively targets 46 different weed species, providing extensive coverage.
- Flexible Application: Can be used both pre-emergent and post-emergent, allowing for versatile lawn care.
- Active Ingredient: Contains Mesotrione, known for its efficacy in controlling tough weeds.
Cons:
- Application Complexity: Requires careful application timing and methods, which may be challenging for novice users.
- Potential Turf Damage: If misapplied, it could harm desirable grasses, necessitating precise usage.

#2 Ranked
Prodiamine 65 Wdg 5lbs Pre-emergent Grass Broadleaf Weeds ( Generic Barricade )
Price: $87.21
Rating: ★★★★☆
ASIN: B015BSNZP2
Score: 95%
Overview:
Prodiamine 65 WDG is a pre-emergent herbicide designed for effective control of both grass and broadleaf weeds. Manufactured by Quali-Pro, this product is particularly useful for homeowners and professionals managing established turf-grasses, lawns, and ornamental plantings. It targets a wide range of pests, including common weeds like crabgrass, chickweed, and foxtails, making it a versatile choice for various landscaping needs. With a shelf life of up to three years when stored properly, this herbicide offers a long-lasting solution for weed prevention.
Prodiamine 65 WDG is suitable for use in diverse environments, including sod nurseries and Christmas tree farms, which enhances its appeal to a broad audience. However, it is important to note that this product is not intended for use on golf course putting greens. Users will appreciate its efficacy in preventing weed growth before it starts, but should always refer to the product label for specific application guidelines and safety instructions.
Pros:
- Effective Weed Control: Targets a wide variety of common weeds, ensuring comprehensive coverage.
- Long Shelf Life: Can last up to three years when stored correctly, providing value for users.
- Versatile Application: Suitable for multiple environments, including lawns, nurseries, and ornamental plantings.
Cons:
- Limited Use: Not recommended for golf course putting greens, which may limit its appeal for some users.
- Requires Precise Application: Users must carefully follow label instructions to ensure effectiveness and safety.

#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: 94%
Overview:
Scotts WeedEx Prevent with Halts is a pre-emergent grassy weed killer designed to effectively prevent crabgrass and other winter weeds from taking root in your lawn. With a coverage area of 5,000 square feet per 10.06-pound bag, this product is ideal for homeowners looking to maintain a healthy, weed-free lawn throughout the growing season. It is recommended for application in early spring or fall, targeting various weed species, including Poa annua, henbit, and chickweed.
The formulation is specifically designed to stop crabgrass before it germinates, making it a proactive choice for lawn care enthusiasts. However, users should be cautious when applying it to sensitive grass types, as it is not suitable for Dichondra and Bentgrass. Overall, Scotts WeedEx Prevent with Halts offers a robust solution for preventing common grassy weeds, helping to ensure a vibrant lawn.
Pros:
- Effective Prevention: Stops crabgrass and other weeds before they germinate, ensuring a healthier lawn.
- Season-Long Protection: Provides continuous coverage when applied in early spring or fall.
- Large Coverage Area: One bag effectively covers 5,000 square feet, making it suitable for larger lawns.
Cons:
- Limited Grass Compatibility: Not safe for use on Dichondra and Bentgrass, which may restrict its application for some users.
- Timing Sensitivity: Requires precise application timing for optimal effectiveness, which may be challenging for some homeowners.

#4 Ranked
Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 10,000 sq. ft., 20.12 lbs.
Price: $43.49
Rating: ★★★★☆
ASIN: B08L6T3B4H
Score: 88%
Overview:
Scotts Halts Crabgrass & Grassy Weed Preventer is a pre-emergent weed killer designed to protect lawns from a variety of common weeds, including crabgrass, foxtail, and chickweed. It is particularly effective when applied in early spring or fall, preventing the germination of weeds and promoting a healthy lawn. The product covers up to 10,000 square feet, making it suitable for both small and large yards. Its versatility allows for use on all grass types, except for Dichondra and Bentgrass, providing a broad application for homeowners looking to maintain their lawns.
The formulation of Scotts Halts ensures that it remains effective even after exposure to rain or snow, which is a significant advantage for users in varying climates. However, the product does have limitations, such as its ineffectiveness against existing weeds, as it only prevents germination. Additionally, it may not be suitable for all grass types, which could limit its appeal for some users. Overall, Scotts Halts Crabgrass & Grassy Weed Preventer is a reliable option for lawn care enthusiasts seeking to keep their lawns weed-free throughout the growing season.
Pros:
- Effective Prevention: Prevents the germination of multiple types of weeds, ensuring a healthier lawn.
- Weather Resistant: Performance is unaffected by rain, snow, or freezing temperatures post-application.
- Wide Coverage: One bag covers up to 10,000 sq. ft., making it efficient for larger lawns.
Cons:
- Limited to Prevention: Does not eliminate existing weeds; only prevents new growth.
- Grass Type Restrictions: Not suitable for use on Dichondra or Bentgrass, limiting its applicability.
- Timing Sensitivity: Requires precise timing for application to be effective, which may be challenging for some users.

#5 Ranked
Liquid Harvest Mesotrione - 8oz - Mesotrione Concentrate (Compare to Tenacity) - Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses
Price: $39.99
Rating: ★★★★☆
ASIN: B09JL4ZXQZ
Score: 84%
Overview:
Liquid Harvest Mesotrione is a concentrated herbicide designed to combat a variety of weeds in lawn and turf grasses. It features Mesotrione, which acts quickly upon application but may take up to three weeks to fully eradicate targeted weeds. This product is particularly effective against 46 broadleaf species and grasses, making it a versatile choice for maintaining healthy lawns. While it has specific activation requirements, such as needing water within ten days of application, it can be used on a range of grass types, including Kentucky Bluegrass and Tall Fescue.
The herbicide's mode of action involves inhibiting photosynthesis in susceptible plants, allowing it to control both pre-emergent and post-emergent weeds effectively. However, it is important to note that certain grass types are not compatible with Mesotrione, which limits its use in some lawn care scenarios. Overall, Liquid Harvest Mesotrione presents a powerful solution for weed management, although users should be aware of its specific application guidelines and limitations regarding grass types.
Pros:
- Fast Acting: Begins to work immediately upon application, providing quicker results.
- Broad Spectrum: Targets 46 different weed species, offering versatility for various lawn situations.
- Effective on Dormant Grass: Can be applied on dormant bermudagrass to eliminate weeds without harming the grass.
Cons:
- Delayed Results: Full weed death may take 2-3 weeks, requiring patience from users.
- Water Activation Required: Needs rainfall or manual watering, which can be a limitation in dry conditions.
- Grass Type Restrictions: Not suitable for all grass types, limiting its application in diverse lawns.
Product Information & Tips
Overview
Bermudagrass is a popular choice for lawns and sports fields due to its durability and resistance to heat. However, maintaining a healthy Bermudagrass lawn requires proactive measures, particularly in weed management. Pre-emergent herbicides are essential tools for controlling weeds before they have a chance to germinate, thus ensuring the grass can thrive without competition.
Choosing the best pre-emergent for Bermudagrass involves considering various factors including effectiveness, safety, application timing, and environmental impact. With numerous products available on the market, homeowners and lawn care professionals must evaluate their options carefully to select the most suitable herbicide for their specific needs.
Key Criteria
1. Effectiveness Against Common Weeds:
- A pre-emergent should target the specific types of weeds prevalent in Bermudagrass lawns, such as crabgrass and foxtail, to ensure optimal control.
2. Application Timing:
- Understanding when to apply pre-emergents is crucial, as they must be applied before weed seeds germinate, typically in early spring or fall for effective results.
3. Safety for Bermudagrass:
- The selected herbicide must be safe for use on Bermudagrass, ensuring it does not cause damage to the grass while effectively controlling weeds.
4. Residual Activity:
- A longer residual activity means the herbicide will continue to prevent weed growth for an extended period, reducing the need for reapplication and saving time and resources.
5. Environmental Impact:
- Consideration of the environmental effects of the herbicide, including its potential to affect non-target plants and wildlife, is important for sustainable lawn care practices.
Frequently Asked Questions
Q1: What is a pre-emergent herbicide?
A1: A pre-emergent herbicide is a chemical treatment applied to the soil to prevent weed seeds from germinating and establishing.
Q2: When should I apply pre-emergent for Bermudagrass?
A2: Pre-emergent should typically be applied in early spring, before soil temperatures reach 55°F, or in late summer for fall germinating weeds.
Q3: Can I use pre-emergent on new Bermudagrass?
A3: Yes, but it is crucial to wait until the grass is well-established, usually after it has been mowed at least 2-3 times, before applying pre-emergent.
Q4: How long does pre-emergent last?
A4: The effectiveness of pre-emergent can vary, but most products provide control for 8 to 12 weeks, depending on the formulation and environmental conditions.
Q5: Are there organic options for pre-emergent?
A5: Yes, there are organic pre-emergent options available, such as corn gluten meal, which can help suppress weed growth without synthetic chemicals.