Permit-99 Insecticide (Profenofos 40% + Cypermethrin 4% EC)
The "40:4" Double-Action Formula for Cotton & Vegetable Pests
Permit-99 by HPM Chemicals is a powerful, broad-spectrum insecticide designed to fight tough pest infestations. It combines two active ingredients—Profenofos and Cypermethrin—to deliver a "one-shot" solution for farmers. Whether you are dealing with chewing worms (like Bollworms) or sucking pests (like Aphids and Thrips), Permit-99 works instantly to stop crop damage.
Best For: Farmers looking for a strong, reliable solution for hard-to-kill pests in Cotton, Brinjal, Okra, and other vegetables.
Why Choose This Product? Key Benefits
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Instant Knockdown: Starts paralyzing insects immediately upon contact, stopping them from feeding on your crops.
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Double Power Synergy: Combines two modes of action to kill pests that have become resistant to single chemical sprays.
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Long-Lasting Protection: Remains effective on the plant surface for days, preventing re-infestation.
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Rain-Fastness: Absorbs quickly into the leaf surface, making it resistant to wash-off from light rains after drying.
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Translaminar Action: Penetrates through the leaf tissue to kill pests hiding on the underside (bottom) of the leaves.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Permit-99 |
| Technical Name | Profenofos 40% + Cypermethrin 4% EC |
| IRAC MoA Code | 1B (Organophosphate) + 3A (Pyrethroid) |
| Chemical Group | Organothiophosphate + Synthetic Pyrethroid |
| Formulation | EC (Emulsifiable Concentrate) Liquid |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Permit-99 attacks the insect nervous system in two ways, ensuring total control.
- Contact Shock (Cypermethrin): As soon as the spray hits the insect, it attacks the sodium channels in the nerves. This causes immediate paralysis and "knockdown," stopping the pest from moving or flying.
- Stomach Poison (Profenofos): When the insect feeds on treated leaves, the chemical enters its digestive system and blocks the enzyme Acetylcholinesterase (AChE). This leads to nerve failure and death.
- Hidden Pest Control (Translaminar): The medicine enters the leaf layers. Even if a pest is hiding under the leaf and was not sprayed directly, it will die when it bites the leaf.
This combination is excellent for killing pests that have laid eggs inside plant shoots or bolls.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Bollworm Complex (American, Pink, Spotted), Aphids, Jassids, Thrips, Whiteflies |
| Brinjal (Eggplant) | Shoot Borer, Fruit Borer, Aphids |
| Okra (Bhindi) | Shoot and Fruit Borer, Jassids, Mites |
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 (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 400 - 600 ml | 200 - 400 L | 2 ml | 14 Days |
| Brinjal | 400 - 500 ml | 200 L | 2 - 2.5 ml | 14 Days |
| Okra | 400 - 500 ml | 200 L | 2 - 2.5 ml | 14 Days |
*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 first see the pest infestation reach the "Economic Threshold Level" (e.g., 5% damage). Avoid spraying during the hot afternoon; morning or evening is best.
- Mixing: Do NOT mix with alkaline products like Bordeaux mixture or Lime Sulphur, as this will destroy the chemical efficacy.
- Coverage: Ensure the nozzle is directed to cover the undersides of the leaves where eggs and mites usually hide.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not use near fish ponds or water bodies.
Frequently Asked Questions
1. What is the technical content of Permit-99?
It contains Profenofos 40% + Cypermethrin 4% EC, a popular "40:4" mixture used widely in India.
2. Does Permit-99 kill mites?
Yes, thanks to the Profenofos component, it has good acaricidal (mite-killing) properties along with insect control.
3. How soon can I harvest after spraying?
You must wait at least 14 days after spraying before harvesting crops like Brinjal or Okra to ensure residues are safe.
4. Is it effective against Pink Bollworm?
Yes, it is highly effective against the entire Bollworm complex, including Pink Bollworm, due to its ability to penetrate bolls slightly.
5. Who manufactures Permit-99?
Permit-99 is a registered trademark and product of HPM Chemicals and Fertilizers Ltd.
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.

