Mefenoxam 2AQ Fungicide – Systemic Oomycete Disease Control
Mefenoxam 2AQ Fungicide is a water-based systemic fungicide containing 22.5% mefenoxam, formulated to provide systemic control of diseases caused by Pythium and Phytophthora and certain foliar diseases such as downy mildew. It is labeled for use on turfgrass, ornamentals, trees, nurseries, landscapes, greenhouses and other specified sites.
Mefenoxam is a phenylamide fungicide that moves systemically within treated plants. Mefenoxam 2AQ is particularly useful as part of a disease-management program targeting oomycete pathogens, including Pythium and Phytophthora.
The water-based formulation offers a low-odor alternative to traditional EC formulations and is designed for convenient mixing and application with standard spray equipment.
Key Features
- 22.5% mefenoxam
- Systemic fungicide
- Water-based formulation
- Low odor compared with many EC formulations
- Targets Pythium and Phytophthora diseases
- Labeled for certain downy mildew diseases
- Labeled for yellow tuft on turf
- Suitable for cool-season and warm-season turfgrass where permitted by the label
- For use on labeled ornamental plants and trees
- Suitable for professional turf and landscape applications
- EPA Reg. No. 53883-433
Active Ingredient
Mefenoxam – 22.5%
Other Ingredients – 77.5%
EPA Registration No.: 53883-433
Diseases Controlled
Mefenoxam 2AQ is labeled for control or suppression of specified diseases caused by oomycete pathogens, including:
- Pythium
- Phytophthora
- Yellow tuft
- Downy mildew
Always consult the current EPA-approved label for the complete list of diseases, crops, turf species, application sites and required application rates.
Turfgrass Uses
Mefenoxam 2AQ can be used on labeled cool-season and warm-season turfgrasses, including turf maintained in specified sites such as:
- Golf courses
- Residential lawns
- Athletic fields
- Parks
- Office and commercial landscapes
- Sod farms
- Other labeled turf areas
Use is subject to the specific turf species, disease, site and application directions appearing on the current product label.
Particularly Useful for Pythium Management
Mefenoxam is widely used in turf disease-management programs where Pythium is a concern. Because mefenoxam belongs to the phenylamide fungicide group, it should be incorporated into a properly designed fungicide rotation rather than repeatedly relying on the same mode of action.
For resistance management, follow the label's restrictions and rotate or tank-mix with fungicides having different modes of action when appropriate.
Ornamental, Nursery & Landscape Uses
Mefenoxam 2AQ is labeled for use on specified ornamental plants, trees and nursery crops.
Potential application sites include:
- Landscapes
- Nurseries
- Greenhouses
- Ornamental plants
- Trees
- Shrubs
- Landscape plantings
Always verify that the specific plant and application site are listed on the current label before application.
Systemic Fungicide Action
Unlike a strictly contact fungicide, mefenoxam is systemic, allowing the active ingredient to move within treated plants. This makes Mefenoxam 2AQ particularly suited to management of diseases caused by susceptible oomycete pathogens.
Mefenoxam 2AQ is intended to be used as part of an integrated disease-management program rather than as a universal fungicide for every turf or ornamental disease.
