Protect your lawn from crabgrass and other weeds with the right pre-emergent. This guide highlights five reliable options that target germinating weeds while fitting different yard sizes and needs. We compare coverage, active ingredients, and application notes to help you choose the best pre-emergent for corn-focused lawns and gardens.
| Product | Coverage | Active Ingredient | Notes |
|---|---|---|---|
| The Andersons Barricade Professional-Grade Granular (40 lb) | Up to 12,880 sq ft | Prodiamine 0.48% | DG Technology for rapid soil movement |
| The Andersons Barricade Professional-Grade Granular (18 lb) | Up to 5,800 sq ft | Prodiamine 0.48% | Compact option with same active |
| Yard Mastery 0-0-7 Dimension (18 lb) | Up to 6,000 sq ft | Dithiopyr 0-0-7 | Plus fertilizer base for potassium uptake |
| Scotts Halts Crabgrass & Grassy Weed Preventer (10,000 sq ft) | Up to 10,000 sq ft | Prodiamine-based | Spring and fall application guidance |
| Yard Mastery 0-0-7 Dimension (45 lb) | Up to 15,000 sq ft | Dithiopyr 0-0-7 | Large-property option |
The Andersons Barricade: 40 lb Professional-Grade Pre-Emergent
This granular pre-emergent is designed to prevent a wide spectrum of weeds before germination, including crabgrass, poa annua, and goosegrass. It contains 0.48% prodiamine for professional-grade weed control and uses patented dispersible granule technology to dissolve quickly upon watering, moving the active ingredient into the soil for maximum impact. It is specifically marketed for early spring and fall applications and is intended to prevent existing weeds from developing.
The Andersons Barricade: 18 lb Professional-Grade Pre-Emergent
This lighter option maintains the same weed-prevention profile with prodiamine and DG Technology for rapid soil action. It covers up to 5,800 sq ft, making it suitable for smaller lawns or targeted applications. The product aims to prevent a broad list of grassy and broadleaf weeds and is intended for spring or fall use to curb germination before weed emergence.
Yard Mastery Dimension 0-0-7 (18 lb): Crabgrass Prevention
This pre-emergent uses Dithiopyr to prevent crabgrass and many broadleaf weeds before they germinate, covering up to 6,000 sq ft. The product combines weed prevention with a 0-0-7 fertilizer base to support potassium uptake in established turf without encouraging rapid growth. It is well-suited for small-to-medium lawns seeking reliable early-season control.
Yard Mastery Dimension 0-0-7 (45 lb): Large-Scale Pre-Emergent
This larger bag targets up to 15,000 sq ft and provides pre-emergent protection against crabgrass and broadleaf weeds using a Dithiopyr formulation. It is designed for larger properties or repeat applications, helping maintain weed suppression over a broader area. The 0-0-7 blend supports turf health alongside weed prevention.
DOW Snapshot 2.5 TG Granular Pre-emergent
Snapshot 2.5 TG is positioned as a high-control pre-emergent with extended residual effects. It claims suppression of up to 111 broadleaf and grassy weeds for six to eight months, depending on conditions. Application rates range from 2.3 to 4.6 lb per 1,000 square feet, making it suitable for both home lawns and larger turf areas seeking longer-lasting protection against germination.
Buying Guide: Key Considerations For Choosing The Right Pre-Emergent
- Weed targets and spectrum: Some pre-emergents target both grassy and broadleaf weeds, while others are more selective. If your yard struggles with crabgrass and poa annua, ensure the product lists those species.
- Active ingredient and residual: Prodiamine and Dithiopyr are common; prodiamine tends to offer broad preventive coverage, while dithiopyr can provide early-season knockback. Consider your climate and soil conditions for residual length.
- Coverage and bag size: Choose a product that fits your lawn size. Larger bags offer economies of scale for bigger properties, while smaller bags are practical for urban or postage-stamp lawns.
- Water activation: Some formulations rely on rainfall or irrigation to move the active into the soil. Check your irrigation schedule and local weather to maximize efficacy.
- Application timing: Pre-emergents are most effective when applied before weed germination. Align timing with typical spring and fall germination windows in your region for best results.
- Turf compatibility: Ensure the product is safe for your grass type. Some products may have restrictions around particular varieties or overseeding plans.
- Soil and environmental considerations: If you have young plants, vegetable patches, or pet-sensitive yards, verify the product’s safety guidelines and any re-entry intervals before use.
- Alternatives: Corn gluten meal offers a natural option, though its efficacy varies by weather and application timing. For some yards, a synthetic pre-emergent with proven kill rates may yield more reliable results.