Maintaining a green, healthy lawn means protecting it from fungal diseases that can cause brown patches, spots, and thinning turf. The following fungicides are designed for home lawns and offer varying coverage, active ingredients, and application methods. This guide compares five top-rated options to help you choose the right product for prevention and treatment across common lawn diseases.
| Product | Brand | Coverage | Best For |
|---|---|---|---|
| Scotts DiseaseEx Lawn Fungicide | Scotts | Up to 5,000 sq. ft. | Preventing 26 diseases; fast-acting |
| BioAdvanced Fungus Control for Lawns | BioAdvanced | Up to 5,000 sq. ft. | Broad protection; ready-to-spray |
| Spectracide Immunox Fungus Plus | Spectracide | 32 oz concentrate; suitable for lawns | Dual-action; insect control |
| Jonathan Green Lawn Fungus Control (10233) | Jonathan Green | Up to 5,000 sq. ft. | Controls 20+ soil-borne diseases |
| Bonide Infuse Lawn & Landscape Systemic Disease Control | Bonide | 7.5 lb granules; broad coverage | Systemic protection for turf and ornamentals |
The selections above emphasize prevention, broad disease coverage, and compatibility with common cool- and warm-season grasses. Each product includes instructions for safe, effective use, including timing relative to spring green-up and reseeding. When choosing, consider your lawn type, disease history, and the spray or granule application method you prefer.
Scotts DiseaseEx Lawn Fungicide
Scotts DiseaseEx Lawn Fungicide targets 26 listed lawn diseases, including brown patch and red thread. It starts working within 24 hours of application and provides protection for up to four weeks. Use to prevent disease before symptoms appear or to control early signs. Suitable for home lawns up to 5,000 sq. ft. The product is designed for easy use and periodic reapplication as needed based on disease pressure.
BioAdvanced Fungus Control for Lawns
BioAdvanced Fungus Control for Lawns is a ready-to-spray solution offering up to 30 days of protection against common lawn diseases. It provides broad disease control, including red threat and brown patch. The ready-to-spray format makes quick application convenient for homeowners who want reliable, month-long protection without complex prep work. Best for ongoing disease prevention through the growing season on lawns up to 5,000 sq. ft.
Spectracide Immunox Fungus Plus Insect Control For Lawns
Spectracide Immunox Fungus Plus Insect Control offers a dual-action approach, addressing major lawn diseases while also killing listed lawn-damaging insects on contact. It’s rainproof within hours, so treatment remains effective even after rainfall. Start treatment as the lawn greens up in spring and continue every two weeks for best results. Ideal for homeowners seeking both disease protection and insect control in one product.
Jonathan Green Lawn Fungus Control (10233)
Jonathan Green 10233 Fungus Control is a broad-spectrum granular fungicide designed for all lawn grasses. It controls more than 20 soil-borne diseases, including brown patch and dollar spot, and prevents new infections while stopping existing ones from spreading. It can be applied during seeding and should be used when the yard is dry for best absorption. Suitable for cool and warm-season grasses up to 5,000 sq. ft.
Jonathan Green Lawn Fungus Control (15,000 Sq. Ft.)
This Jonathan Green product expands the coverage to up to 15,000 sq. ft. and maintains the same broad-spectrum approach, targeting over 20 soil-borne diseases. It provides preventative protection and stops existing infections from growing. It’s compatible with multiple grass types and is designed to be used during dry conditions for optimal absorption and effectiveness.
Bonide Infuse Lawn & Landscape Systemic Disease Control
Bonide Infuse Lawn & Landscape Systemic Disease Control provides broad-spectrum disease protection. It’s suitable for turf and ornamentals, supporting root growth and color in woody shrubs as well. The 7.5 lb ready-to-use granules cover a wide area and work on both cool and warm-season grasses. This product is particularly useful for homeowners who manage mixed landscapes beyond turf alone.
Buying Guide
- Disease scope: Check which lawn diseases are prevalent in your region and choose a product with broad coverage for those pests (e.g., brown patch, dollar spot, red thread).
- Form and application: Granules vs. liquid sprays; consider your preference and lawn setup, including whether you’ll reseed or overseed soon.
- Coverage area: Match product coverage to your lawn’s square footage to avoid under- or over-application.
- Prevention vs. treatment: Some products emphasize prevention for a season, while others address active infections; align with your lawn’s current condition.
- Gradeness and safety: Follow label directions for safe use around children, pets, and garden beds; observe irrigation instructions to maximize effectiveness.
- Compatibility: Consider if you have ornamental plants or a mixed landscape; some products provide extended protection beyond turf.
- Reapplication schedule: Note recommended intervals (for example, every two weeks or up to a month) and plan your seasonal lawn care calendar accordingly.
- Environmental impact: Look for products with targeted mode of action to minimize non-target effects on beneficial organisms.