Syngenta - Subdue Maxx Fungicide

  • Has broad spectrum disease control
  • Contains systemic activity providing even distribution throughout the plant
  • Enables easy mixing and less equipment wear due to its microemulsion concentrate formulation
  • Minimizes development of insensitive strains of fungi
  • Helps reduce disruption on the course and to home owners with odorless technology
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Territory Restriction - IA, IL, IN, KS, MI, MN, MO, ND, NE, SD, WI

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in IA, IL, IN, KS, MI, MN, MO, ND, NE, SD, WI

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Subdue Maxx Fungicide Offers Superior Control of Pythium and Other Diseases

Subdue fungicide provides contact and systemic protection against Pythium blight, Pythium damping-off, and yellow tuft (downy mildew). Protect your turf with this excellent part of an agronomic disease management program.

Get the Leading Solution for Preventive Pythium Control with Syngenta Subdue Maxx

Subdue Maxx fungicide offers control of Pythium blight. It is a microemulsion concentrate formulation providing excellent tank mix compatibility and stability, containing no odor and mixing into a clear solution. With both systemic and contact activity, Subdue Maxx can stop disease from further germination and control what is already there. It offers root protection as its solubility penetrates the soil for great root density.

Strong Systemic and Contact Activity-

Subdue Maxx stops disease growth and prevents the development of disease within the plant. With its systemic activity, it is:

  • Absorbed into the leaves and stems where it cannot be washed off by rain
  • Absorbed by the roots and translocated throughout the plant

Subdue Maxx has contact activity. The product remains on the soil’s surface and is absorbed into soil particles and organic matter where it controls pathogens.

Highly Effective Class of Chemistry-

Subdue Maxx belongs to a group of fungicides called phenylamides, which have been rigorously tested and are widely used. It is formulated as a microemulsion concentrate, providing excellent tank mix compatibility and stability.

Optimal Preventive Disease Control-

Subdue Maxx provides outstanding control when applied preventively as conditions become favorable for Pythium development. The first application should be made when temperatures range from 68°F - 86°F, and relative humidity is approximately 90%.

The benefits of preventive applications of Subdue Maxx include:

  • Enhanced turf quality: Preventive control preserves and improves turf quality. Once turf has been infected with Pythium, the infected tiller usually dies and needs to be replaced with another plant.
  • Economical: Preventive applications are typically more efficient since curative applications require higher rates at shorter intervals to gain control of the disease. The preventive rate of Subdue Maxx is 0.5 OZ in 1–5 GAL water/1,000 SQ FT.
  • Excellent disease control: With both systemic and contact activity, Subdue Maxx can stop disease from further germination and will control what is already there. It offers root protection as its solubility penetrates the soil for great root density.

Active Ingredient:


Use Sites:

  • Landscape Ornamentals
  • Golf Courses
  • Turfgrass
  • Athletic Fields
  • Residential and Commercial Lawns
  • See Subdue Maxx label for complete list

Diseases Controlled:

  • Pythium Blight
  • Pythium Damping-Off
  • Yellow Tuft
  • Downy Mildew
  • See Subdue Maxx label for complete list


Subdue Maxx may be applied through traditional spray equipment or irrigation systems as a soil drench, surface (broadcast or banded), or stem and foliar spray. Subdue MAXX may also be incorporated into a pre-potting growing media for subsequent seeding or transplanting of ornamentals.

Do not use in greenhouse citrus nursery stock intended for commercial fruit production. This product may be applied through micro-sprinkler or drip irrigation systems. Do not apply this product through any other type of irrigation system. See label for complete details and application instructions.

Syngenta encourages responsible product stewardship to ensure effective long-term control of fungal diseases.

Applications targeted for downy mildew diseases should always be in a tank mixture with a non-Group 4 fungicide.

For foliar applications to ornamentals and conifers, do not make more than one application before alternating with a non-Group 4 fungicide for sequential foliar applications.

For all other applications, do not make more than two sequential applications of Subdue Maxx before alternating with a non-Group 4 fungicide.

Tank Mix Compatibility:

It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and follow the applicable restrictions and limitations, and directions for use on all product labels involved in tank mixing.

Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture. Subdue fungicide is usually compatible with Banner MAXX, Daconil, Fore, Heritage, and Medallion. A jar compatibility test is recommended before tank-mixing with other pesticides and/or adjuvants to ensure the compatibility of Subdue MAXX with other tank-mixed pesticides, adjuvant, or fertilizer partners.

Always conduct a tank-mix compatibility test when mixing with new or unknown tank-mix partners before use. The following test assumes a spray volume of 25 gal/A. For other spray volumes, make appropriate changes in the components.

Resistance Management:

For resistance management, Subdue Maxx fungicide contains a Group 4 phenylamide fungicide. Any fungal population may contain individuals naturally resistant to Subdue Maxx and other Group 4 fungicides. A gradual or total loss of pest control may occur over time if these fungicides are used repeatedly at the same use site. Appropriate resistance management strategies should be followed. Mefenoxam is a systemic fungicide belonging to the phenylamide class of chemistry, which adversely affects fungal RNA synthesis.

To delay fungicide resistance, take one or more of the following steps:

  • Rotate the use of Subdue MAXX or other Group 4 fungicides within a growing season sequence with different groups that control the same pathogens.
  • Use tank mixtures with fungicides from a different group that are equally effective on the target pest when such use is permitted. Use at least the minimum application rate as labeled by the manufacturer.
  • Adopt an integrated disease management program for fungicide use that includes scouting; uses historical information related to pesticide use and crop rotation; and which considers host plant resistance, impact of environmental conditions on disease development, disease thresholds, as well as cultural, biological, and other chemical control practices.
  • Where possible, make use of predictive disease models to effectively time fungicide applications. Note that using predictive models alone is not sufficient to manage resistance.
  • Monitor treated fungal populations for resistance development.
Rain Sensitivity
48 HRS
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