Swal Devona Fungicide - Copper Sulphate 47.15% + Mancozeb 30% WDG Broad-Spectrum Fungicide & Bactericide

Swal Devona is a broad-spectrum contact fungicide and bactericide from SWAL Corporation, formulated with a powerful dual-action blend of Copper Sulphate 47.15% and Mancozeb 30% in an advanced WDG (Wettable Granule) formulation. This combination makes Devona a reliable protective shield against a wide range of fungal and bacterial diseases in important field, vegetable, fruit, and horticultural crops. The copper component releases copper ions that act on the plant surface to kill fungal spores and disrupt bacterial cell function, while mancozeb works as a multi-site contact fungicide that prevents fungal spores from germinating and spreading.

Swal Devona is designed for both preventive and early curative use, giving farmers a versatile tool for disease management. It is quickly absorbed by leaves, provides extended protection inside plant tissues, and offers excellent rainfastness. The WDG technology ensures rapid solubility, dust-free handling, and superior coverage on crop foliage. Beyond disease control, the formulation also provides a secondary boost of essential copper and manganese nutrients, helping crops stay green and healthy even under high disease pressure. Devona is commonly used to manage diseases like anthracnose, powdery mildew, downy mildew, leaf spots, blights, and bacterial infections in crops such as grapes, pomegranate, cotton, paddy, tomato, chilli, potato, and citrus.

With a recommended dose of about 2 kg per acre for most crops, Swal Devona is applied as a foliar spray using clean water. Its dual multi-site mode of action also supports resistance management, reducing the risk of pathogens developing resistance compared to single-site systemic fungicides. This makes Swal Devona a dependable choice for farmers looking for broad-spectrum, long-lasting crop protection.

Key Benefits

• Broad-spectrum control of both fungal and bacterial diseases in one product, saving time and effort in the field.
• Dual-action protection combines copper's bactericidal and fungicidal activity with mancozeb's multi-site contact action for reliable disease control.
• Advanced WDG formulation dissolves quickly in water, gives dust-free handling, and provides superior coverage on crop foliage.
• Excellent rainfastness keeps the protective barrier effective even under wet or high-pressure disease conditions.
• Provides a secondary boost of copper and manganese nutrients that help crops stay green and healthy.
• Multi-site mode of action supports resistance management, giving long-term reliable disease control.
• Can be used both preventively and at the first sign of disease, making it a versatile field tool.
• Helps protect marketable yield by controlling diseases that damage leaves, fruits, and overall crop health.

How It Works

Swal Devona works through a dual mode of action on the plant surface. Copper Sulphate releases copper ions that come into direct contact with fungal spores and bacterial cells on the leaf surface. These copper ions disrupt the normal function of the pathogen cells, killing fungal spores and preventing bacterial infection from establishing. This gives Devona its strong protective bactericidal and fungicidal activity.

Mancozeb, the second active ingredient, acts as a multi-site contact fungicide. It inhibits multiple enzyme systems within the fungal pathogen, preventing spores from germinating and stopping the disease from spreading across the foliage. Because mancozeb works at several sites within the pathogen, it is difficult for fungi to develop resistance against it. This multi-site action is a key reason why Devona supports resistance management programs.

Together, these two ingredients form a protective barrier on the leaf surface that blocks fungal spore germination and bacterial infection. The WDG formulation ensures the product spreads evenly and sticks well to the foliage, providing extended protection. Devona is best used as a preventive spray before disease appears or at the very first sign of symptoms, so the protective barrier is in place before the pathogen can cause serious damage.

Technical Specifications

Recommended Dosage & Application

Swal Devona is applied as a foliar spray by mixing the recommended quantity with clean water. The dose varies by crop and disease pressure. Use the following crop-wise guidance as a reference and always follow the product label for exact recommendations.

For a per-litre dose, mix around 2 to 2.5 grams of Devona per litre of water, based on about 400 to 500 grams mixed in 200 litres of water per acre. Always adjust the rate based on crop, disease pressure, growth stage, and label recommendations.

When to Use

Apply Swal Devona at the early stage of fungal or bacterial infection, or when disease-conducive conditions appear. It gives the best results when applied before severe disease development, acting as a preventive protective barrier on the foliage.

• Spray preventively during favourable weather conditions for disease development, or at the first appearance of disease symptoms.
• Apply during cool morning or evening hours when wind speed is low.
• Avoid application before heavy rainfall.
• Repeat applications should be based on disease pressure and label recommendations.
• Rotate Devona with fungicides having different modes of action to reduce resistance risk.

Step by Step Usage Instructions

1. Identify the fungal or bacterial disease before starting the application.
2. Shake the Devona bottle properly before use.
3. Measure the required quantity according to the recommended dose for your crop.
4. Fill the spray tank halfway with clean water.
5. Add Swal Devona slowly while continuously mixing the solution. For best results, first mix the required dose in a small amount of water to form a smooth paste, then add it to the spray tank.
6. Fill the remaining water quantity and mix properly to ensure uniform suspension.
7. Spray Devona uniformly on crop foliage using a knapsack, battery, or motorized sprayer.
8. Ensure complete coverage of both upper and lower leaf surfaces, including infected and healthy plant parts.
9. Clean the spray equipment thoroughly after completing the application.

Compatibility

Perform a jar test before mixing Swal Devona with other pesticides or fertilizers to confirm compatibility. This simple test helps avoid any adverse reactions in the spray tank and ensures the mixture remains effective.

Precautions & Safety

• Wear gloves, mask, protective clothing, and eye protection while handling Swal Devona.
• Do not eat, drink, or smoke during mixing and spraying.
• Avoid direct contact of the product with skin and eyes.
• Do not exceed the recommended application dose.
• Keep the product away from food, animal feed, and drinking water.
• Wash hands, clothes, and spraying equipment thoroughly after use.
• Keep Swal Devona away from children and animals.
• Store in the original sealed container in a cool, dry, and shaded place, protected from direct sunlight, moisture, and extreme temperatures.
• Do not transfer the product into unlabelled containers.
• Check the product label for expiry and shelf-life details.

PHI / REI & Storage

• Re-entry Period: Allow the spray solution to dry completely before entering the treated field.
• Pre-Harvest Interval: Crop-specific; check the product label.
• Shelf Life: Check the product pack for expiry details.
• Storage: Keep in the original sealed container in a cool, dry, and shaded place, away from direct sunlight, moisture, food, seeds, animal feed, and medicines.