Organophosphate Insecticide
CHLORPYRIFOS 50% EC
Broad-spectrum organophosphate delivering Contact, Stomach, and Fumigant activity. Highly effective against foliar and soil insects (including termites) with strong knockdown and moderate residual action.
Active: Chlorpyrifos
Formulation: 50% EC (Emulsifiable Concentrate)
Action: Contact, Stomach, Fumigant
Product Information
Mode of Action
Chlorpyrifos inhibits the acetylcholinesterase (AChE) enzyme. This leads to the accumulation of acetylcholine at nerve synapses, resulting in continuous nerve impulse transmission, muscle spasms, paralysis, and death.
[Image of acetylcholinesterase inhibition mechanism]
Target Pests
- Stem borer, Leaf folder, Bollworm
- Diamondback moth, Cabbage webworm
- Beet armyworm, Tropical armyworm
- Mustard aphid, Leafminer, Thrips
- Tea green leafhopper, Psyllids
- Soil insects & Termites (due to volatility)
Recommended Dosage
| Crop | Pest | Dosage | PHI (Days) |
|---|---|---|---|
| Rice (Paddy) | Stem borer, Leaf folder | 750 – 800 ml/ha | 15 |
| Cotton | Bollworms | 1000 – 1200 ml/ha | 30 |
| Cabbage | Beet armyworm | 375 – 495 ml/ha | 7 |
| Eggplant | Thrips | 300 – 450 ml/ha | 7 |
| Tea | Tea green leafhopper | 375 – 450 ml/ha | 7 |
| Pear | Psyllids | Dilute 1250 – 2500 times | 7 – 10 |
| Apple | Topical armyworm | Dilute 4000 – 6000 times | 7 – 10 |
Dosage Note: For fruit crops (Pear, Apple), usage is defined by dilution ratio rather than rate per hectare. PHI = Pre-Harvest Interval (Waiting period in days).
Application Instructions
1. Mixing
This product is an Emulsifiable Concentrate (EC). Add the required quantity to a small amount of water to make an emulsion, then add to the spray tank with agitation.
2. Soil Application
Due to its volatility and fumigant action, Chlorpyrifos can penetrate soil crevices. It is effective for treating soil pests and termites when applied as a drench or during soil preparation.
Safety Precautions
Warning: Organophosphates can be toxic. Wear full personal protective equipment (respirator, gloves, goggles, suit). Highly toxic to bees and aquatic organisms; avoid spraying during flowering or near water bodies.