Chlorpyrifos — Dosage & Labelled Products
Insecticide · 2 crops on label · 8 CIB&RC registered brand products
Highly toxic — yellow label triangle (Poison)
Chlorpyrifos 50% EC is a insecticide registered under India's Insecticides Act 1968 by CIB&RC for insects control. It is approved for use on 2 crops including Cotton, Paddy.
Chlorpyrifos dosage by crop
| Crop | Pest / disease | Method | a.i. per ha | Formulation per ha | Water (L/ha) | Waiting period (days) |
|---|---|---|---|---|---|---|
| Cotton | Bollworm · Insects | Spray | 500-600 | 1000-1200 | 500-1000 | 30 |
| Paddy | Leaf Roller · Insects | Spray | 375-400 | 750-800 | 500-1000 | 15 |
| Paddy | Stem Borer · Insects | Spray | 375-400 | 750-800 | 500-1000 | 15 |
Read the label. Doses above are the registered label claims (Central Insecticides Board & Registration Committee) for information only. Always follow the product label and your local agriculture officer's advice, wear protective equipment, and observe the waiting period before harvest. Found an error? Report it. See our terms of use.
Crops on the Chlorpyrifos label
- Cotton 116 pesticides
- Paddy 165 pesticides
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Source: Central Insecticides Board & Registration Committee (CIB&RC), India - official registered brand product list · View source →. Updated: updated annually · Report an error
Frequently Asked Questions
What is Chlorpyrifos 50% EC used for in India?
Chlorpyrifos 50% EC is a insecticide registered under India's Insecticides Act 1968. It is approved by CIB&RC for insects control on 2 crops including Cotton, Paddy.
What is the recommended dosage of Chlorpyrifos 50% EC?
The registered dosage of Chlorpyrifos 50% EC varies by crop and target pest. For example: Cotton (Bollworm) — 1000-1200 per hectare; Paddy (Leaf Roller) — 750-800 per hectare. Always follow the CIB&RC registered label dose for your specific crop.
How many brand products contain Chlorpyrifos 50% EC in India?
8 CIB&RC registered brand products containing Chlorpyrifos 50% EC are available in India, manufactured by 7 companies. All products listed on this page contain Chlorpyrifos 50% EC as the active ingredient at the registered concentration and are approved under the Insecticides Act 1968.
What is the pre-harvest interval (PHI) for Chlorpyrifos 50% EC?
The pre-harvest interval for Chlorpyrifos 50% EC varies by crop: Cotton — 30 days; Paddy — 15 days; Paddy — 15 days. Check the PHI column in the dosage table above for each registered crop.
Is Chlorpyrifos safe for all crops?
Chlorpyrifos 50% EC is only registered for the specific crops listed in its CIB&RC label. Using it on non-registered crops is illegal and may result in crop damage or residue violations. Always verify the crop is listed on the product label before use.







