SML Topgun-DF Fungicide – Copper Oxychloride 50% WG

SML Topgun-DF Copper Oxychloride 50% WG Contact Fungicide

SML Topgun-DF is a copper-based contact fungicide containing Copper Oxychloride 50% WG. It is registered for controlling downy mildew in grapes and anthracnose in mango.

Its water-dispersible granule formulation disperses uniformly in water and forms a protective copper deposit on treated plant surfaces. The product acts preventively and performs best when applied at the first sign of disease or when weather conditions favour disease development.

SML Topgun-DF Product Specifications

Key Features

• Copper-Based Fungicide: Contains Copper Oxychloride 50% WG.
• Contact Protection: Forms a protective deposit on treated plant surfaces.
• Preventive Activity: Helps prevent fungal spores from establishing infection on protected tissue.
• WG Formulation: Water-dispersible granules provide convenient handling and uniform dispersion.
• Uniform Coverage: Supports even deposition across properly sprayed plant surfaces.
• Registered Disease Control: Recommended for grape downy mildew and mango anthracnose.
• Rainy-Season Utility: SML identifies it as a useful fungicide during disease-favourable rainy conditions.
• Copper Nutrition: Supplies copper, but it should primarily be used as a registered fungicide rather than as a substitute for a complete nutrient programme.

How Topgun-DF Works

Topgun-DF remains mainly on the treated plant surface. On contact with moisture, the copper deposit releases copper ions that interfere with essential enzymes and proteins in susceptible fungal cells.

This multi-site protective activity disrupts several metabolic processes required for spore germination and fungal development. Because it is a contact fungicide, complete and uniform coverage is important.

Topgun-DF does not move systemically throughout the plant. New growth emerging after application may therefore require further protection according to disease pressure and label directions.

Registered Crops, Diseases and Dosage

Registered-use warning: Do not use Topgun-DF on crops or diseases other than those specified on its current label and leaflet.

Water-Wise Mixing Quantity

Calculation note: These quantities are mathematical conversions of the registered formulation concentration of 240 g per 100 litres. Use the water volume required for complete crop coverage and follow the current label.

Application Timing and Frequency

Benefits for Growers

• Provides registered protection against downy mildew in grapes.
• Helps manage anthracnose infection in mango.
• Multi-site contact action supports preventive disease management.
• WG formulation supports easy measurement and dispersion in water.
• Uniform protective coverage supports consistent surface protection.
• Useful when humid or rainy conditions favour target diseases.
• Available in a convenient 250 g pack as shown.

How to Apply SML Topgun-DF

1. Correctly identify the crop and target disease before spraying.
2. Read the complete product label and accompanying leaflet.
3. Measure 240 g of Topgun-DF for every 100 litres of water.
4. Wear the protective equipment specified on the product label.
5. Half-fill the spray tank with clean water.
6. Mix the required granules separately with a small quantity of water.
7. Stir until a uniform dispersion is obtained.
8. Add the mixture to the spray tank while agitating.
9. Add the remaining water and mix thoroughly.
10. Spray both sides of the foliage and other susceptible plant surfaces uniformly.
11. Avoid excessive runoff and maintain agitation during spraying.
12. Use the prepared spray mixture on the same day.

Disease-Management Guidance

Downy Mildew in Grapes

Monitor grape foliage and clusters during periods of high humidity, rainfall and prolonged leaf wetness. Apply preventively when disease-favourable conditions occur or at the first confirmed sign of downy mildew.

Anthracnose in Mango

Inspect new growth, panicles and developing fruits during humid conditions. Begin label-approved protection at the first sign of anthracnose or when weather conditions favour infection.

Integrated Disease Management

• Remove severely infected or fallen plant material where practical.
• Maintain proper canopy ventilation through recommended pruning and spacing.
• Avoid unnecessary overhead irrigation and prolonged leaf wetness.
• Use clean planting material and maintain orchard sanitation.
• Follow balanced nutrition rather than excessive nitrogen application.
• Rotate with effective registered fungicides having a different mode of action.
• Monitor weather conditions and crop symptoms regularly.

Compatibility and Mixing Precautions

Copper fungicides may be incompatible with certain pesticides, fertilizers and strongly acidic or alkaline materials. Prepare a tank mixture only when all product labels permit the combination.

Conduct a small jar test before mixing unfamiliar products. Do not combine with another agrochemical if precipitation, separation, heat generation or excessive foaming occurs.

Crop-Safety Precautions

• Use only at the registered dose and crop stage.
• Avoid spraying during extreme heat or other crop-stress conditions.
• Do not apply immediately before rainfall.
• Avoid excessive spray concentration or repeated unnecessary applications.
• Follow the crop-specific pre-harvest interval.
• Consult the label before applying copper to sensitive cultivars or young tissue.

Safety Precautions

• Keep the product in its original sealed and labelled package.
• Store away from children, food, feed and household articles.
• Avoid breathing dust and spray mist.
• Prevent contact with skin and eyes.
• Wear label-specified gloves, clothing, footwear and face protection.
• Do not eat, drink, smoke or chew during application.
• Wash exposed skin and contaminated clothing after spraying.
• Avoid using near aquaculture or contaminating water sources.
• Never reuse an empty pesticide package.

Why Choose SML Topgun-DF?

• Copper Oxychloride 50% WG contact fungicide.
• Broad-spectrum activity with bactericidal properties.
• Registered for grape downy mildew and mango anthracnose.
• Water-dispersible granule formulation.
• Supports uniform dispersion and protective coverage.
• Recommended concentration of 240 g per 100 litres.
• Manufactured by Sulphur Mills Limited.

Frequently Asked Questions

What is the technical name of SML Topgun-DF?

It contains Copper Oxychloride 50% WG.

Is Topgun-DF a contact or systemic fungicide?

It is a contact fungicide. It forms a protective copper deposit on the sprayed plant surface and does not move systemically throughout the plant.

Which crops are registered for Topgun-DF?

Its registered Indian label lists grapes for downy mildew and mango for anthracnose.

What is the dose of Topgun-DF?

Use 240 g per 100 litres of water, equivalent to 2.4 g per litre, according to the current label.

How much is needed for a 15-litre pump?

At the registered concentration, a 15-litre spray pump requires 36 g.

How many sprays are recommended?

The label recommends two to three foliar sprays at 7–14-day intervals, starting at the first sign of disease or when weather favours infection.

What is the waiting period before harvest?

The stated pre-harvest interval is 30 days for grapes and 10 days for mango.

Can Topgun-DF be used on tomato, potato or chilli?

These crops are not included on the available Topgun-DF Copper Oxychloride 50% WG label. Do not use or advertise it for an unlisted crop.

Does Topgun-DF control bacterial leaf spot?

SML describes the formulation as having bactericidal properties, but bacterial leaf spot is not included as a registered target on the available label. Do not make a crop-specific control claim unless it appears on the current pack.