Crabgrass can spread quickly if not managed after it sprouts. This guide highlights effective post-emergent and related crabgrass products to help homeowners maintain healthy, weed-free lawns. Each section covers product features, usage, and what to consider before buying, so you can choose the right option for your yard.
| Product | Type | Area Covered | Key Benefit | Ideal For |
|---|---|---|---|---|
| BASF Drive XLR8 Crabgrass Killer | Post-Emergent Herbicide | Varies by dilution | Up to 30 days residual; rapid action | Crabgrass and broadleaf weeds in lawns and turf |
| Scotts WeedEx Prevent with Halts | Pre-Emergent Crabgrass Preventer | 5,000–5,000 sq ft typical | Season-long crabgrass prevention; stops new sprigs | New weed germination prevention in spring and fall |
| Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food | Pre-Emergent with Fertilizer | 12,000–15,000 sq ft | Prevents listed weeds and feeds lawn | Weed prevention + lawn nutrition |
| Scotts Turf Builder Halts Crabgrass Preventer | Pre-Emergent Weed Killer | 10,000–14,000 sq ft | Pre-emergent barrier against crabgrass | Spring pre-emergent protection for established lawns |
| 0-0-7 Safeguard Pre-Emergent Lawn Fertilizer | Pre-Emergent Fertilizer | Varies by bag size | Prevents weeds and forms weed barrier | Long-lasting weed germination prevention |
BASF Drive XLR8 Crabgrass Killer
BASF Drive XLR8 is a post-emergent herbicide designed to control crabgrass and other broadleaf weeds in turf. Its water-based formulation promotes quick uptake by plants and offers up to 30 days of residual control. The product is rainfast in under an hour, allowing for timely rain or irrigation after application. It targets a broad spectrum of weeds, making it suitable for lawns with multiple weed challenges. When applying, follow label directions for mixing and application rates to ensure safe use on your specific turfgrass type.
Scotts Halts Crabgrass & Grassy Weed Preventer
This Scotts product is a pre-emergent option designed to prevent crabgrass and other grassy weeds from germinating. It’s formulated for early spring application and remains effective through the season, including fall when weed pressure shifts. The product can also handle certain moss and broadleaf considerations, with performance unaffected by rain, snow, or freezing conditions after application. It is most effective when applied to a dry lawn at the recommended rate and watered in as directed.
Scotts Halts Crabgrass & Grassy Weed Preventer (2-Pack)
Another Scotts option, this 2-pack provides pre-emergent barrier protection to prevent crabgrass and listed weeds in the lawn. It emphasizes early spring and fall application timings, with performance continuing through seasonal weed cycles. The product emphasizes prevention rather than post-emergent treatment, making it a practical companion to post-emergent controls for a broader lawn-warfare strategy.
Scotts WeedEx Prevent with Halts
Scotts WeedEx Prevent with Halts combines prevention with weed control for crabgrass and other grassy weeds. It’s designed to stop crabgrass before it starts and is suitable for early spring applications. For best results, apply as directed on the product label, considering your lawn size and grass type to optimize coverage and minimize impact on desirable turf.
Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food
This product provides a combination of pre-emergent weed prevention and lawn fertilizer to promote a quick green-up after winter. It helps prevent listed weeds, including crabgrass and other common lawn invaders, and includes guidance to apply during dry lawn conditions in early spring before high temperatures rise. The added fertilizer helps support turf health as weeds are kept at bay.
Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food
This variant of Scotts Turf Builder Halts combines crabgrass prevention with lawn food to promote early-season growth without inviting crabgrass. It’s aimed at homeowners seeking a combined approach—prevention plus nutrition—delivering a stronger, weed-resistant lawn. Apply during early spring when soil temperatures begin to rise for best results, while following label directions for lawn size and application timing.
Buying Guide
- Post-emergent vs. pre-emergent: Post-emergent products (like BASF Drive XLR8) target existing crabgrass, while pre-emergents (e.g., Scotts Halts and WeedEx Prevent) prevent new crabgrass germination. Consider a combined strategy if your lawn has both established weeds and future germination pressure.
- Active ingredients: Quinclorac-based products can provide quick control of crabgrass and some broadleaf weeds but may be less effective on some grasses. Read label compatibility with your specific turf type (cool-season vs. warm-season).
- Residual and reapplication: Some products offer residual control (e.g., up to 30 days). Plan reapplication timing based on local climate and mowing plans to avoid turf stress.
- Area coverage and bag size: Choose products sized for your lawn area to minimize waste and ensure complete coverage. Pre-emergents often cover larger areas per bag with longer intervals between applications.
- Fertilizer combination: Some products include lawn fertilizer, which can aid green-up but may require careful timing to prevent over-fertilization. Match with your lawn’s nutrient needs and maintenance schedule.
- Environmental considerations: Apply during appropriate weather windows; avoid excessive runoff into storm drains. Follow label directions for safety and environmental stewardship.
- Application guidelines: Dry lawn vs. wet conditions, watering requirements after application, and mowing restrictions after treatment all impact efficacy. Always follow product labels for best results.
- Cost and convenience: Pre-emergents may require seasonal timing, while post-emergents require proximity to weed growth. Weigh convenience, timing, and budget when planning purchases.