Centipede lawns require targeted weed control that protects their delicate root systems while keeping the lawn healthy. The following picks are designed for St. Augustine and centipede grasses, offering pre-emergent and post-emergent options, selective weed killers, and combined weed control with fertilization. This guide highlights products with proven performance, easy application, and clear labeling for safe use in centipede environments.
Summary of chosen products:
- Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide
- The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control
- Hi-Yield Atrazine Weed Killer
- Scotts Turf Builder Weed & Feed3, Weed Killer Plus Lawn Fertilizer
- Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate
Atrazine-Based Weed Killer For St. Augustine And Centipede

Product overview focuses on targeted control of common weeds in St. Augustine and centipede grass. The formula is designed to suppress or eliminate broadleaf and grassy weeds that frequently invade warm-season lawns. With a fast-acting approach, this option can be suitable for pre-emergent or post-emergent needs depending on timing and label directions. Always follow label instructions for safe use on centipede and nearby ornamentals.
Key features include coverage of approximately 3,720 square feet per quart and compatibility with St. Augustine or centipede grasses. The product’s weight and packaging indicate a compact, consumer-friendly option that’s easy to store. Users should be mindful of soil conditions and irrigation routines to maximize efficacy and minimize turf stress.
Considerations: Atrazine products require careful application to avoid runoff and non-target areas. Not all centipede lawns respond equally to atrazine, so assess turf health and local guidelines before use. This product is best suited for established weed patterns and may not provide broad-spectrum lawn prevention on newly seeded lawns.
Barricade Granular Pre-Emergent For Lawns

The Andersons Barricade is a professional-grade granular pre-emergent designed to prevent weeds from taking hold in the lawn. It’s not intended to eliminate existing weeds but excels at stopping future weed growth when applied at appropriate times in early spring or fall. The product contains prodiamine, a proven active ingredient for crabgrass, poa annua, goosegrass, and other common turf invaders.
With patented DG Technology, the granules dissolve rapidly after watering, delivering active ingredients into the soil for maximum impact. This option can be part of a longer-term weed management plan in centipede or St. Augustine lawns where early prevention matters. Good irrigation improves performance, and timing around core aeration or overseeding can enhance compatibility with centipede turf management.
Considerations: Pre-emergents do not cure existing weeds and require timing alignment with local climate. User should avoid applying to stressed lawns and adhere to the label’s instructions regarding application rates and irrigation schedules. Best results come from a seasonal plan that targets peak weed germination windows.
Atrazine-Based Weed Tool For Centipede Grass

Hi-Yield’s Atrazine Weed Killer targets several common lawn weeds while remaining suitable for use on St. Augustine and centipede grass. Atrazine can be effective for seasonal suppression of annual bluegrass, chickweed, and other broadleaf competitors. This product is considered a selective option for warm-season lawns that require targeted weed control without heavy disturbance to the turf itself.
Reference features indicate a focus on broadleaf and some grassy weed management with compatibility notes for centipede environments. Application timing and rates are critical to minimize turf injury and ensure weed suppression aligns with lawn growth cycles. Always read the label for crop and turf compatibility before application.
Considerations: Atrazine products must be applied according to local regulations and label directions. Avoid application on stressed or drought-affected lawns, and be mindful of proximity to water sources as atrazine can move through runoff if misapplied.
Weed Killer Plus Fertilizer For Lawns

Scotts Turf Builder Weed & Feed3 combines weed control with lawn fertilizer to not only suppress listed weeds but also strengthen turf against future invasions. This product claims effectiveness against a broad set of common lawn weeds such as dandelion, clover, plantain, and others. It’s designed to be applied during actively growing periods when temperatures are favorable for weed uptake and lawn growth.
Key benefits include weed control plus feeding, helping to thicken the turf and crowd out future weeds. The product label suggests a max application frequency and guidance on when to apply, especially in warmer climates. For centipede lawns, ensure the product’s formulation is compatible with warm-season grass to minimize stress and potential discoloration.
Scotts Liquid Weed Control With Lawn Fertilizer

This liquid formulation provides quick weed control with a nitrogen boost to promote greener, thicker turf. The targeted weed list includes dandelion, clover, ground ivy, henbit, chickweed, plantain, and other broadleaf varieties. The spray-ready format makes it convenient for spot treatments and larger-scale applications when weeds are actively growing.
Considerations: Liquid weed killers work quickly but may require more frequent reapplication if new weeds emerge. Follow label directions for dilution and application timing to protect centipede lawns from potential burn or stress during hot weather. Consistent watering after application helps with uptake and results.
Spectracide Weed Stop For Lawns Concentrate

Spectracide Weed Stop is formulated for St. Augustinegrass varieties and centipede lawns, aiming to control emerged weeds and prevent future growth when used as directed. The concentrate form allows for controlled mixing and application, enabling homeowners to tailor coverage to lawn size and weed pressure. The label highlights effectiveness against a range of broadleaf weeds while preserving lawn health during normal use windows.
Key points include targeted action against common invaders without harming the turf when applied correctly. Always adhere to label instructions to minimize risk to beneficial plants and aquatic systems, particularly in areas with runoff concerns or near water sources.
Buying Guide: Key Purchase Considerations For Centipede Lawns
- Weed type and timing: Pre-emergents prevent seed germination, while post-emergents tackle existing weeds. Identify your weed species and choose products that align with their life cycles and centipede tolerance.
- Turf compatibility: Centipede and St. Augustine grasses have distinct needs. Select formulations labeled safe for warm-season lawns, and avoid products with harsh ingredients that can stress or burn centipede turf.
- Active ingredient strategy: Atrazine and prodiamine provide different control profiles. Consider rotation to prevent resistance and minimize environmental impact. Follow local regulations regarding herbicide usage.
- Application timing and frequency: Many products require seasonal timing (spring/fall) and limit applications per year. Adhere to label directions to optimize results and lawn health.
- Fertilization synergy: Some products combine weed control with fertilizer, delivering growth and color benefits. Use these when your lawn can benefit from both weed suppression and nutrient support, but avoid over-fertilizing.
- Watering and irrigation: Proper irrigation helps activate pre-emergents and ensures post-emergents reach the root zone. Adjust irrigation after application to maximize efficacy and minimize runoff.
- Safety and environment: Always read the label for safety instructions, protective gear recommendations, and environmental cautions. Keep pets and children away until safe re-entry times are advised.
- Long-term lawn health: Combine preventive and curative strategies with proper mowing height, aeration, and overseeding when appropriate to strengthen centipede lawns against weeds over time.
Incorporating a balanced approach—selecting the right product type, applying at proper times, and maintaining healthy lawn practices—helps centipede lawns resist weed pressure while preserving turf quality. Consider starting with a pre-emergent to curb weed establishment, followed by targeted post-emergent treatments as needed. Always follow the product label for best results and local guidance.