Coromandel Phendal Insecticide (Phenthoate 50% EC)
The Ultimate "Resistance Breaker" for Hard-to-Kill Pests in Cotton, Paddy, and Pulses.
Phendal (Phenthoate 50% EC) is a powerful, time-tested insecticide by Coromandel International designed to tackle tough pest infestations. Unlike standard pesticides, Phendal works as a complete solution by killing adult insects, destroying their eggs (ovicidal action), and repelling new pests with its unique strong odor.
Best For: Farmers struggling with pests that have developed resistance to synthetic pyrethroids, specifically Bollworms, Rice Caseworms, and Hairy Caterpillars.
Why Choose This Product? Key Benefits
-
⏱️
Rapid Knockdown Action: Immediate paralysis of pests upon contact, stopping crop damage instantly.
-
🛡️
Triple Threat Control: Acts as a contact poison, stomach poison, and vapor fumigant to reach hidden pests.
-
⏳
Ovicidal Power (Kills Eggs): Destroys pest eggs before they hatch, preventing the next generation of worms.
-
🌧️
Strong Repellent Barrier: The distinct pungent odor deters adult moths from laying eggs on your crops.
-
🌿
Resistance Breaker: Highly effective against pests that no longer die from standard pyrethroid sprays.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Phendal |
| Technical Name | Phenthoate 50% EC |
| IRAC MoA Code | Group 1B (Organophosphates) |
| Chemical Group | Organothiophosphate |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Yellow Triangle (Highly Toxic) or Blue Triangle |
How It Works: Mode of Action
Phendal targets the insect's nervous system, causing over-stimulation and rapid failure. It works in three distinct ways:
- Nerve Inhibition: It blocks the enzyme Acetylcholinesterase (AChE), leading to paralysis and death of the insect.
- Egg Penetration (Ovicidal): It penetrates the outer shell of pest eggs, killing the embryo inside before it can hatch.
- Vapor Action: The chemical releases vapors that reach pests hiding inside curled leaves or soil crevices (fumigant effect).
Note: The strong smell also confuses adult moths, preventing them from locating the crop to lay new eggs.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Bollworm Complex, Pink Bollworm (Eggs & Larvae) |
| Paddy (Rice) | Rice Caseworm, Stem Borer, Leaf Folder |
| Pulses (Black/Green Gram) | Bihar Hairy Caterpillar, Pod Borer |
| Groundnut | Leaf Webber |
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 | 800 ml | 200 L | 4.0 ml | 14 Days |
| Paddy | 400 - 1000 ml | 200 L | 2.0 - 5.0 ml | 14 Days |
| Pulses / Gram | 320 - 800 ml | 200 L | 1.6 - 4.0 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 at the first sign of pest incidence or when egg-laying is observed. For Rice Caseworm, spray when larvae are seen on water.
- Mixing: Premix the required quantity in a small amount of water to form a stable white emulsion before adding it to the main spray tank. Do not mix with alkaline products like Bordeaux Mixture or Lime Sulphur.
- Coverage: Ensure thorough coverage of the foliage. For pests like the Leaf Webber, ensure the spray penetrates the webbed leaves.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Toxic to fish and bees; avoid spraying near water bodies or during active bee foraging hours.
Frequently Asked Questions
1. Does Phendal kill insect eggs?
Yes. Phendal has strong "ovicidal" action, meaning it destroys the eggs of pests like Bollworms before they can hatch and damage the crop.
2. Why does Phendal have such a strong smell?
The strong pungent odor is a feature, not a bug. It acts as a repellent that discourages adult moths from landing on your crop to lay eggs.
3. Can I mix Phendal with Bordeaux Mixture?
No. You should never mix Phendal with alkaline substances like Bordeaux Mixture or Lime Sulphur, as this will destroy the medicine's effectiveness immediately.
4. Which crops is Phendal best for?
It is most effective on Cotton, Paddy (Rice), Pulses (Gram), Groundnut, and Cardamom.
5. What is the antidote in case of accidental poisoning?
The specific antidote is Atropine Sulphate. In case of poisoning, seek immediate medical attention and show the product bottle/leaflet to the doctor.
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. This product is toxic to aquatic life; do not contaminate water bodies.

