Gama Insecticide (Diafenthiuron 50% WP)
The Ultimate "Resistance Breaker" for Whiteflies, Aphids, and Mites.
Gama (Diafenthiuron 50% WP) by Insecticides (India) Ltd. is a powerful, broad-spectrum solution designed for modern Indian agriculture. It specializes in controlling tough "sucking pests" that have developed immunity to older sprays.
Best For: Cotton, Cabbage, Chilli, Brinjal, and Cardamom farmers facing heavy whitefly or mite pressure.
Why Choose This Product? Key Benefits
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Stops Damage Instantly: Although the pest dies later, it stops feeding (paralysis) within hours of spraying. This prevents viral transmission.
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Resistance Breaker: Works effectively against pests that survive Imidacloprid and other common chemicals.
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Double Action: Controls both insects (Whitefly, Aphids) and arachnids (Mites) in a single spray.
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Vapor Action Technology: Turns into a gas on the leaf surface, reaching pests hiding underneath leaves where sprays can't reach.
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Greening Effect: By clearing sooty mold (black fungus) caused by pests, it restores the natural green color of your crop.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Gama |
| Technical Name | Diafenthiuron 50% WP |
| IRAC MoA Code | Group 12A (Mitochondrial Inhibitor) |
| Chemical Group | Thiourea Derivative |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Gama is a unique "Pro-Insecticide." It is not toxic in the bag, but becomes a powerful killer once inside the insect.
- Activation: When the pest touches or eats Gama, its own enzymes (and sunlight) convert the chemical into a toxic form.
- Energy Block: It targets the mitochondria (the power plant) of the insect's cells and stops energy production (ATP synthesis).
- Starvation: Without energy, the insect becomes paralyzed, cannot feed, and eventually dies of starvation.
Note: Because it works by starvation, pests may remain on the leaf for 24-72 hours but will not cause any damage.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Whitefly, Aphids, Thrips, Jassids |
| Cabbage & Cauliflower | Diamondback Moth (DBM) |
| Chilli & Brinjal | Mites (Yellow/Red), Thrips, Borers |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 240 g | 200 L | 1.2 g | 21 |
| Cabbage | 240 g | 150 L | 1.6 g | 7 |
| Brinjal / Chilli | 240 g | 150 L | 1.6 g | 3 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply when you see 6-8 whitefly adults per leaf. For bees safety, spray in the evening.
- Mixing (Slurry Method): Never dump the powder directly into a full tank. Mix the powder in a small bucket of water first to make a smooth cream (slurry), then add it to the main tank.
- Coverage: Use a Hollow Cone Nozzle. The "Vapor Action" needs good foliage coverage to fumigate the crop canopy.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Gama control Mites?
Yes, Gama is an excellent acaricide. It effectively controls Red Spider Mites and Yellow Mites, especially in Chilli and Tea crops.
2. Why didn't the pests die immediately?
Gama works by paralysis and starvation. Pests stop eating immediately (saving your crop) but may remain visible on the leaf for 1-2 days before dying. This is normal.
3. Can I use Gama on fruits and vegetables?
Yes, but strictly follow the PHI. For Brinjal and Chilli, the PHI is only 3 days, making it safe for harvest shortly after application.
4. What is "Vapor Action"?
In sunlight, Gama releases a vapor (gas) that penetrates deep into the crop canopy and reaches the undersides of leaves where pests hide, ensuring 360-degree protection.
5. Is Gama compatible with other chemicals?
Yes, generally. However, do not mix with highly alkaline products (like Bordeaux mixture). Always perform a physical compatibility test first.
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.
