Choosing an effective systemic fungicide can protect turf from common diseases like brown patch, dollar spot, and red thread. The following selections are widely used for lawns and ornamental landscapes, offering curative and preventive action with systemic uptake. This article highlights five top options, with quick-reference details to help you compare coverage, spectrum, and application flexibility. Use the buying guide below to match product features with your lawn’s needs and climate.
| Product | Brand | Key Benefits |
|---|---|---|
| Atticus Gravex 20EW Fungicide | Atticus | Myclobutanil; broad-spectrum control; curative & preventive; turf and ornamentals |
| Bonide Infuse Systemic Disease Control | Bonide | Broad systemic disease control; turf & ornamentals; easy spray formulation |
| Fertilome Liquid Systemic Fungicide II | ferti-lome | Liquid systemic; protects roses, flowers, lawns, trees; easy dilution |
| BioAdvanced Fungus Control For Lawns | BioAdvanced | Ready-to-spray; 30-day protection; controls multiple lawn diseases |
| Reliant Systemic Fungicide (Agri-Fos) | VivaGrow | Active defense of plants; controls Phytophthora, Pythium, mildews |
The following five products were selected for strong systemic activity, broad disease coverage, and suitability for American lawns and landscapes. Each section provides a concise product overview, key features, and practical usage notes to help you decide which option best fits your turf care plan.
Atticus Gravex 20EW Fungicide For Lawns

Gravex 20 EW contains 19.7% myclobutanil, the active ingredient found in Eagle 20EW, providing broad-spectrum fungus control. It’s designed for fast curative action and preventive protection, targeting a wide range of turf and ornamental diseases. The product notes include effectiveness against brown patch, red thread, powdery mildew, scab, and more, making it a versatile choice for mixed landscapes. Application should follow label directions for mixing and coverage to optimize uptake and systemic distribution.
Bonide Infuse Systemic Disease Control

Infuse Systemic Disease Control Ready-to-Spray provides broad-spectrum systemic protection for turf and ornamentals, including roses, lawns, trees, and shrubs. It helps stop and prevent diseases such as rust, blight, powdery mildew, scab, leaf spots, and more, with a focus on both immediate control and ongoing protection. This product is designed for flexible use across cool- and warm-season grasses, easing integration into residential landscapes with mixed plantings.
Fertilome Systemic Fungicide II (Liquid)

The Fertilome Liquid Systemic Fungicide II is a liquid concentrate designed for easy mixing and application. It provides systemic protection against major fungal diseases on roses, flowers, lawns, and trees, helping to prevent infection and suppress ongoing symptoms. The 32-ounce bottle allows substantial coverage per treatment, and the liquid format enables precise dilution for various turf and landscape needs. Always consult the label for recommended rates and water volumes.
BioAdvanced Fungus Control For Lawns

BioAdvanced Fungus Control for Lawns is a ready-to-spray solution offering systemic action with 30-day protection. It targets a range of lawn diseases, helping to curb red thread, brown patch, dollar spot, rust, and other common turf issues. The ready-to-spray format provides convenience for homeowners seeking straightforward applications, with visible disease suppression and preventive benefits across a month-long period when used as directed.
Bonide Infuse Lawn & Landscape Systemic Granules

Infuse Lawn & Landscape Systemic Granules combine ease of use with broad systemic protection for turf and ornamentals. The granules cover both lawns and woody plants, supporting root health and overall color while preventing and stopping diseases such as dollar spot, rust, brown patch, powdery mildew, and leaf spots. The product is suitable for cool- and warm-season grasses and compatible with various landscape configurations, from home lawns to mixed plantings in larger grounds.
Reliant Systemic Fungicide (Agri-Fos/Garden Phos)

Reliant Systemic Fungicide offers a robust option for disease management, with a formulation aligned to Agri-Fos and Garden Phos. It helps control a broad spectrum of pathogens including Phytophthora, Pythium, Downy Mildews, and various leaf spots and blights. The product also emphasizes activating plant defense mechanisms to resist disease invasion, supporting healthier growth in lawns and landscape plantings.
Buying Guide: Key Purchase Considerations And Comparisons
Systemic fungicides vary in active ingredients, disease spectra, and timing of action. Consider these factors to select the best fit for your lawn:
- Active ingredient and spectrum: Myclobutanil-based products offer broad control but check compatibility with ornamentals and labeled diseases for your site.
- Mode of action: Curative versus preventive action matters; some products provide both, delivering immediate control plus ongoing protection.
- Formulation: Liquid concentrates require mixing; ready-to-spray formulations save time but may have different coverage rates.
- Coverage area: Ensure the product label specifies square footage coverage to align with your lawn size.
- Seasonality: Some products excel in cool-season grasses, others in warm-season lawns. Climate and disease pressure influence timing.
- Plant safety: Read label directions for sensitive ornamentals and avoid over-application that could stress turf.
- Application method: Backpack sprayers, hoses, and spreaders each have pros and cons; select based on lawn shape and accessibility.
- Resistance management: Rotate products with different active ingredients when disease pressure is high to reduce resistance risk.
- Integrated approach: Combine fungicides with proper mowing height, irrigation practices, and overseeding to sustain disease resistance.
In summary, gravitating toward a product with proven systemic control and a broad disease spectrum can simplify lawn care. When selecting, weigh ease of use, target diseases, and how the product integrates with your landscape’s plant variety and climate. Always follow label directions and local regulations for safe and effective use.