Gharda Guru Insecticide (Fipronil 10% + Diafenthiuron 30% WG)
The "Master" solution for Sucking Pests and Mites in Cotton, Chilli, and Vegetables.
Gharda Guru is a premium, dual-action insecticide designed to break the resistance of tough pests. By combining the rapid knockdown of Fipronil with the long-lasting vapor action of Diafenthiuron, Guru delivers a "One-Shot" clean-up. It is specifically engineered to handle complex infestations where both insects (Whiteflies/Thrips) and Mites are attacking the crop simultaneously.
Best For: Farmers dealing with "Leaf Curl" in Chilli or heavy Whitefly/Thrips pressure in Cotton who need a single product to control the entire pest complex.
Why Choose This Product? Key Benefits
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Instant Knockdown: The Fipronil component acts on the insect's nervous system immediately, causing paralysis and rapid drop-off from the plant.
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True Miticide Action: Unlike many insecticides that only kill insects, Guru also kills Red and Yellow Mites, preventing the "downward curling" of leaves in Chilli.
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Vapor (Gas) Power: Diafenthiuron turns into a vapor inside the crop canopy, fumigating pests hiding deep in flowers or on the underside of leaves.
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Stops Feeding Instantly: The product cuts off the pest's energy supply (ATP). Even if the pest stays on the leaf for a few hours, it cannot feed or damage the crop.
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Safe WG Formulation: Guru comes as "Wettable Granules" (WG). It contains no harmful petroleum solvents, making it safe for tender leaves and flowers (no phytotoxicity).
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Guru (Gharda Chemicals) |
| Technical Name | Fipronil 10% + Diafenthiuron 30% WG |
| IRAC MoA Code | Group 2B (Fipronil) + Group 12A (Diafenthiuron) |
| Chemical Group | Phenylpyrazole + Thiourea |
| Formulation | Wettable Granules (WG) |
| Toxicity Label | Yellow/Blue Triangle (Hazardous) |
How It Works: Mode of Action
Guru uses a "Double Attack" strategy to ensure no pest survives. It targets two vital systems in the insect's body simultaneously.
- Nervous System Overload (Fipronil): It blocks the GABA receptors (the "brakes" of the nervous system). This causes the insect's nerves to fire uncontrollably, leading to tremors, paralysis, and rapid death.
- Energy Blackout (Diafenthiuron): It blocks the production of ATP (cellular energy). The insect literally runs out of fuel. This causes an immediate "anti-feedant" effect—the pest stops eating your crop instantly to save energy, but dies of starvation shortly after.
- Hidden Pest Control: The Diafenthiuron component vaporizes (turns to gas) in sunlight, reaching pests hiding inside curled leaves or flower buds.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Whiteflies, Thrips, Aphids, Jassids, Mites |
| Chilli | Thrips (Upward Curl), Yellow/Red Mites (Downward Curl), Fruit Borer |
| Vegetables (Tomato/Brinjal) | Whiteflies, Shoot & Fruit Borer, Mites |
Dosage & Application Guide
The Golden Rule: Use a minimum of 200 Liters of water per acre. This high volume is crucial for the "Vapor Action" to work effectively.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 400 - 500 g | 200 L | 2.0 - 2.5 g | 20-30 Days |
| Chilli | 400 - 500 g | 200 L | 2.0 - 2.5 g | 7-10 Days |
| Vegetables | 400 g | 150 - 200 L | 2.0 g | 10-15 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Sunlight is Key: Diafenthiuron needs sunlight to activate. Spray in the early morning so it can activate during the day.
- Nozzle Selection: Use a Hollow Cone Nozzle. This creates a fine mist that swirls into the canopy, reaching hidden pests.
- Coverage: Ensure full coverage of the plant, especially the undersides of leaves where Whiteflies and Mites live.
- Mixing: The WG granules dissolve easily. Mix the required quantity in a bucket first, then pour into the spray tank.
Frequently Asked Questions
1. How is Guru different from Polo (Diafenthiuron)?
Polo is excellent for Whiteflies and Mites but lacks speed. Guru adds Fipronil, which provides immediate knockdown and broadens the control to include Thrips and Stem Borers.
2. Does Guru control leaf curl in Chilli?
Yes. Leaf curl is often caused by a mix of Thrips (upward curl) and Mites (downward curl). Guru controls both simultaneously, making it a perfect rescue spray for Chilli.
3. What is the rainfastness of Guru?
Guru generally requires 2 to 4 hours to dry and become rainfast. Avoid spraying if rain is expected immediately.
4. Can I mix Guru with fungicides?
Yes, Guru is compatible with most common fungicides. However, avoid mixing with highly alkaline substances. Always do a small jar test first.
5. Is it safe for bees?
No. Fipronil is toxic to bees. Do not spray Guru when the crop is in full bloom and bees are actively foraging. If necessary, spray in the late evening.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application. Avoid spraying near water bodies as it is toxic to fish.
