Gharda Vajra Insecticide – Fipronil 15% + Deltamethrin 2.5% SC

Gharda Vajra Insecticide for Tomato Fruit Borer Management

Gharda Vajra Insecticide is a dual-active agricultural insecticide containing Fipronil 15% and Deltamethrin 2.5% w/v in a Suspension Concentrate formulation. It is officially recommended for the management of tomato fruit borer in tomato crops.

Vajra combines two insecticidal groups with different modes of action. Fipronil provides contact and ingestion activity, while Deltamethrin supports rapid contact action against susceptible insects. Applying the product during the initial appearance of the pest can help reduce feeding and fruit damage under proper application practices.

Gharda Vajra Insecticide Product Specifications

Technical Composition

Key Features

• Dual-active insecticide containing Fipronil and Deltamethrin.
• Officially recommended for tomato fruit borer management in tomato.
• Provides two complementary insecticidal modes of action.
• Acts through contact and ingestion against susceptible pests.
• Supports quick visible action when applied at the appropriate pest stage.
• Low-dose formulation requiring 500 ml per hectare.
• Helps provide continued crop-protection support under proper application.
• Can be incorporated into a planned insect-resistance management programme.

Benefits for Farmers

• Helps manage fruit borer infestation in tomato crops.
• Supports protection of developing tomato fruits from larval feeding damage.
• Combines rapid contact activity with continued insect-management support.
• Helps reduce pest-related crop damage when applied during early infestation.
• Two active ingredients provide complementary control of susceptible insects.
• May help protect marketable fruit quality and crop yield potential.
• A maximum of two label-recommended sprays can support seasonal pest management.

Recommended Crop and Target Pest

Dosage and Application Method

Approximate Acre-Wise Dosage

Dose note: The acre and per-litre quantities are approximate conversions of the official recommendation of 500 ml formulation in 500 litres of water per hectare. Always maintain the complete area-based dose and follow the product label.

Application Information

How to Use Gharda Vajra

1. Read the complete Vajra label and accompanying leaflet before use.
2. Shake the container thoroughly before measuring the formulation.
3. Fill the spray tank approximately halfway with clean water.
4. Measure the required Vajra quantity according to the treated area.
5. Pre-mix the measured formulation in a small quantity of clean water.
6. Add the prepared mixture to the spray tank while stirring.
7. Add the remaining water and maintain proper agitation.
8. Spray uniformly over the tomato crop canopy.
9. Cover foliage, flowers and developing fruits without excessive runoff.
10. Use the prepared spray solution on the same day.

Mode of Action

Fipronil affects the insect nervous system by blocking GABA-gated chloride channels. This causes uncontrolled nervous activity, impaired movement and eventual death in susceptible insects following contact or ingestion.

Deltamethrin is a synthetic pyrethroid that acts as a sodium channel modulator in the insect nervous system. It helps provide rapid contact action and immobilisation of susceptible insects.

The combination of IRAC Group 2B and Group 3A insecticides provides two complementary modes of action for tomato fruit borer management.

Why Farmers Can Choose Gharda Vajra

• Officially recommended for tomato fruit borer in tomato.
• Dual-active formulation with two modes of action.
• Contact and ingestion activity against susceptible pests.
• Low-dose formulation for foliar application.
• Supports fruit protection when applied during early pest incidence.
• Clearly defined PHI and re-entry period for label-compliant use.
• Manufactured and marketed by Gharda Chemicals Limited.

Frequently Asked Questions

What is Gharda Vajra Insecticide?

Vajra is a Suspension Concentrate insecticide containing Fipronil 15% and Deltamethrin 2.5% w/v.

Which crop and pest is Vajra recommended for?

It is officially recommended for tomato fruit borer management in tomato. Do not use it on unlisted crops or pests unless permitted by the product label.

What is the Vajra dose per acre?

The official recommendation of 500 ml per hectare is approximately equivalent to 200 ml per acre, using about 200 litres of water.

What is the Vajra dose per litre?

Based on the official recommendation of 500 ml in 500 litres of water, the calculated concentration is approximately 1 ml per litre. The total area-based dose must still be maintained.

When should Vajra be sprayed?

Apply the first spray during the initial appearance of tomato fruit borer. Early application can support better pest management than waiting for severe fruit damage.

How many Vajra sprays can be applied?

A maximum of two sprays may be applied at the recommended dose. Maintain a 10-day interval when repeat application is required.

What is the waiting period after spraying Vajra?

Maintain a minimum pre-harvest interval of 7 days after the last application.

When can workers re-enter the treated field?

The official re-entry period is 48 hours after application. Follow label directions regarding protective equipment if entry is necessary.

Can Vajra be mixed with another pesticide?

Prepare a tank mixture only when allowed by both product labels and after confirming compatibility. Avoid unverified combinations.