Dollar spot is a common turf disease that can creep across lawns, especially in heat and humidity. This article highlights five effective curative fungicides that target dollar spot and related turf diseases. It is best for homeowners and professional landscapers seeking reliable, widely available solutions to protect thick, green turf. The list favors products with proven active ingredients like propiconazole and thiophanate-methyl, plus a ready-to-use option for quick relief. Below you’ll find an at-a-glance buying guide and a quick comparison table to help pick the right product for your lawn needs.
| Product | Best For | Active Ingredient | Form |
|---|---|---|---|
| Atticus Gunner 14.3 MEC Propiconazole Fungicide (32 OZ) | Home lawns seeking broad protection | Propiconazole | MEC liquid |
| Atticus Gunner 14.3 Propiconazole Fungicide (1 Gal) | Large lawns, easy mixing | Propiconazole | Liquid concentrate |
| Atticus Talaris 50 WSP Systemic Fungicide (4 x 8 oz Packets) | Residential lawns and landscapes with multiple fungi | Thiophanate-methyl | Water-soluble packets |
| TM 4.5 Select Fungicide (2.5 Gallons) | Large-area turf, preventive and curative use | Thiophanate methyl | Liquid concentrate |
| Organic Lawn Fungicide – 16oz Hose-End (ARBER) | Ready-to-use option, easy spray for large areas | Botanical + Bacillus-based | Ready-to-spray |
Atticus Gunner 14.3 MEC Propiconazole Fungicide (32 OZ)
Best for: Homeowners with medium to large lawns needing broad-spectrum fungus prevention. This Gunner 14.3 MEC uses 14.3% propiconazole, the same active ingredient trusted for defense against more than 20 fungi. It is designed for easy mixing and stable tank-mix compatibility, reducing the need for repeated mixing. It remains effective after drying and is resistant to wash-off from rain or irrigation once applied.
Why this pick: The MEC formulation simplifies handling and improves filter-free distribution in sprayers. It pairs well with other fungicides, enabling a customized control program against dollar spot, brown patch, rusts, and other diseases.
Best-use guidance: Follow label directions for soil-borne concerns and turf-dedicated applications. For best results, apply when dew dries and allow the foliage to dry before irrigation. Caution: tank-mix compatibility should be confirmed with other products to avoid antagonism.
Atticus Gunner 14.3 Propiconazole Fungicide (1 Gal)
Best for: Larger turf areas where easy mixing and long coverage matter. This gallon size mirrors the active ingredient profile of Banner Maxx and provides dependable protection against multiple fungi.
Why this pick: The same trusted propiconazole active ingredient supports broad-spectrum defense, with a formulation designed to resist wash-off after application and maintain surface leaf coverage. It’s well-suited for professional or dedicated suburban lawn programs.
Best-use guidance: Apply as directed, spray evenly over turf, and water in if soil-borne activity is a concern. Caution: verify compatibility with any added tank-mix partners to ensure stability and efficacy.
Atticus Talaris 50 WSP Systemic Fungicide
Best for: Lawns, golf courses, and greenhouse settings that require a proven systemic treatment against a broad disease spectrum. Talaris 50 WSP uses a high-activity thiophanate-methyl formulation.
Why this pick: Thiophanate-methyl has a long-standing track record for controlling brown patch, dollar spot, rusts, blights, and molds. The WSP format facilitates precise dosing and reliable delivery through spray equipment.
Best-use guidance: Refer to the label for complete control spectrum and application directions across multiple sites. Caution: save for zones where wide-spectrum activity is required; some environments may demand rotation with other modes of action to prevent resistance buildup.
TM 4.5 Select Fungicide (2.5 Gallons)
Best for: Large turf areas where a preventive and curative option is needed in one product. TM 4.5 Select provides thiophanate methyl-based control with a performance profile similar to Clearys 3336.
Why this pick: The 46.2% thiophanate methyl content delivers robust protection against dollar spot, brown patch, rusts, blights, and molds, with a formulation suitable for both cool- and warm-season turfgrasses.
Best-use guidance: Use on a wide range of turfgrasses and follow label directions for site-specific use. Caution: as with any systemic, rotate with products from different modes of action to reduce resistance risk.
Organic Lawn Fungicide – ARBER (16oz Hose-End)
Best for: Homeowners seeking a ready-to-spray option with broad coverage for lawns, trees, and landscape beds. This product emphasizes a bio-fungicide approach for gentle turf care.
Why this pick: It uses Bacillus amyloliquefaciens to form a protective barrier on blades and roots, supporting soil microbiology while addressing powdery mildew, rust, and dollar spot in lawns. It’s a convenient spray that minimizes harsh residues when used as directed.
Best-use guidance: Spray after rain or during humid months to disrupt disease cycles. Caution: may require more frequent applications in persistently warm or wet conditions; verify compatibility with existing lawn plans.
Buying Guide: Key Considerations For Dollar Spot Fungicides
- Active ingredient matters: Propiconazole delivers broad fungal coverage and is widely trusted for dollar spot. Thiophanate-methyl is effective against brown patch and related fungi but may require rotation to prevent resistance.
- Form and application: Ready-to-spray options save time; liquid concentrates require mixing but can be tank-mixed with other products for a broader program. Consider lawn size and equipment compatibility when choosing.
- Site coverage: Some products are labeled for lawns, golf courses, greenhouses, or ornamentals. Choose a product labeled for the intended site to ensure legal usage and safety.
- Weather and wash-off: Some formulations resist wash-off after drying, which helps during rains. For soil-borne fungi, watering in after application can improve uptake.
- Rotation strategy: Relying on a single mode of action can lead to resistance. A rotation plan using products with different active ingredients can extend effectiveness.
- Safety and compatibility: Read labels for safety precautions, mixing instructions, and tank-mix compatibility to avoid negative interactions.
Frequently Asked Questions
- What is dollar spot and how do fungicides help? – Dollar spot is a fungal disease causing small brown spots on turf. Fungicides can prevent or reduce disease progression when applied according to label directions.
- Should I use prophylactic or curative fungicides? – For active outbreaks, curative products targeting the specific fungus are recommended. Prevention programs can help reduce future outbreaks.
- Is propiconazole safe for pets and children? – Follow label directions for any restricted areas and drying times to ensure safe re-entry after application.
- Can I mix these products with fertilizer? – Tank-mix compatibility varies by product. Always check the label and test small areas first when combining products.
- How often should I treat for dollar spot? – Treatment frequency depends on disease pressure, weather, and product label. Rotate active ingredients to minimize resistance.
- What size should I buy for my lawn? – Determine your lawn area in square feet and refer to product coverage metrics on the label or product page to avoid over- or under-application.