Dimethomorph Fungicide

Active Ingredient	Dimethomorph
Formulations Available	40% SC, 50% WDG, 80% WDG
Classification	Fungicide
Suitable Crops	Grapes, Cucumber, Tomatoes, Potatoes, Peppers
Target Diseases	Downy mildew, Early blight, Late blight
Mode of Action	Inhibits fungal cell wall membrane formation; systemic absorption
Advantages	Highly effective at low concentrations; broad-spectrum oomycete control
Recommended Dosage	– 40% SC (Grapes): 1600-2400x dilution – 50% WDG (Cucumber/Pepper): 450-600 g/Ha – 80% WDG (Cucumber/Potato): 255-375 g/Ha
Application Method	Foliar spray
Safety Interval	3-day interval before harvest for cucumbers
Storage Conditions	Store in a cool, dry, well-ventilated area
Environmental Considerations	Avoid spraying before rain or in windy conditions to prevent drift

For further details on pricing, packaging options, or specific application recommendations tailored to your crops, please contact our sales team or visit our product page.

Mode of Action

Dimethomorph is a specific oomycidal fungicide that disrupts the formation of fungal cell wall membranes. It is particularly effective in the sporangium and oospore formation stages of the pathogen’s life cycle. Even at low concentrations (<0.25 µg/ml), Dimethomorph inhibits fungal growth by preventing the proper development of the cell wall, ultimately stopping disease progression.

Once applied, Dimethomorph is absorbed by the plant through the roots or leaves, traveling systemically to all parts of the plant. This makes it highly effective both as a foliar spray and for root application, offering long-lasting protection from fungal diseases.

Key Features and Advantages

1. Dual-Action Mode of Control

Dimethomorph inhibits sporangium and oospore formation, preventing the development of new fungal structures while also curing existing infections. By interfering with fungal cell wall synthesis, it provides a unique mode of action not shared by many other fungicides.

2. Highly Systemic Behavior

After application, Dimethomorph is absorbed by leaves and roots and transported throughout the plant. This ensures uniform protection—even in untreated plant parts or new growth—which is vital for crops in high-pressure disease environments.

3. Low Application Rate, High Efficacy

Even in small doses, Dimethomorph delivers superior performance. It inhibits fungal growth at less than 0.25 µg/ml, making it a cost-effective choice for growers aiming to minimize chemical load while maintaining control efficacy.

4. Excellent Fit for IPM Programs

Because it has minimal impact on beneficial organisms, Dimethomorph supports Integrated Pest Management (IPM) strategies. It reduces the risk of resistance when rotated with or tank-mixed with other fungicides.

Target Crops and Diseases

Crop	Disease Controlled
Grapes	Downy mildew
Cucumbers	Downy mildew, Early blight
Tomatoes	Late blight
Potatoes	Late blight
Peppers	Early blight

Dimethomorph is particularly valued by vineyard and vegetable growers for its consistent protection and low resistance potential.

Formulations and Application

Dimethomorph is available in several formulations to meet different agricultural needs. Each formulation is tailored for specific crops and diseases to ensure maximum efficacy:

Product	Crops	Target Diseases	Recommended Dosage	Application Method
Dimethomorph 40% SC	Grapes	Downy mildew	1600-2400 times liquid dilution	Foliar spray
Dimethomorph 50% WDG	Cucumber	Downy mildew	450-600 g/Ha	Foliar spray
Dimethomorph 50% WDG	Pepper	Early blight	450-600 g/Ha	Foliar spray
Dimethomorph 80% WDG	Cucumber	Downy mildew	300-375 g/Ha	Foliar spray
Dimethomorph 80% WDG	Potato	Late blight	255-360 g/Ha	Foliar spray

Technical Requirements for Use

To achieve optimal results, Dimethomorph should be applied early in the disease cycle for preventative control:

• Application Timing: Spray during the early stages of disease infection. For crops like cucumbers and grapes, apply once every 7-10 days. Avoid applying the product in strong sunlight or when there is dew on the plants.
• Safety Interval: For cucumbers, maintain a 3-day safety interval before harvest. The product can be used up to 3 times per season.
• Environmental Considerations: Do not apply the fungicide if rain is expected within 1 hour after spraying. Avoid spraying on windy days to prevent drift, which could affect surrounding areas, particularly near water sources.

Product Performance

Dimethomorph is highly effective against oomycete fungi at all stages of their life cycle. Its strong systemic action ensures that the product travels within the plant, protecting new growth as well. This fungicide is particularly sensitive to the sporangium and oospore stages of fungi, making it a powerful tool in managing downy mildew, early blight, and late blight.

Storage and Handling Guidelines

• Storage: Keep in a cool, dry, well-ventilated area, away from sunlight, heat, and ignition sources.
• Transportation: Do not store or transport with food or feed. Use tamper-proof, sealed packaging.
• Shelf Life: 2 years under proper storage conditions.

Safety and Environmental Considerations

• Avoid applying Dimethomorph near aquatic environments to reduce risk to aquatic organisms.
• Wear PPE (gloves, mask, goggles) when handling and spraying.
• First Aid: In case of contact with skin or eyes, rinse thoroughly with water. If ingested or inhaled in large amounts, seek medical attention immediately.

Why Choose POMAIS Dimethomorph?

At POMAIS Agriculture, we go beyond manufacturing. We offer:

• Consistent Quality: Manufactured under ISO-certified standards, each batch is tested for purity and performance.
• Expert Guidance: Our technical team provides local support, product training, and application advice.
• Tailored Solutions: Choose from multiple formulations and packaging types to suit your market or regulatory needs.

Contact Us Today

Looking to improve your disease control strategy with Dimethomorph? Contact our team for expert consultation, free samples, and product registration support. Our sales representatives are ready to help you unlock higher yields and healthier crops.