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Pesticide toxicity colour-code triangles (CIB-RC labels)

Pesticide toxicity colour-code triangles are the mandatory hazard symbols printed on every pesticide container sold in India. The label takes the form of a diamond (a square rotated 45 degrees) split into two triangles: the upper triangle bears the skull-and-crossbones symbol with a signal word, and the lower triangle is filled with one of four toxicity colours.

Principle

Acute toxicity of pesticide formulations varies by orders of magnitude across active ingredients and dilutions. A glance-readable label is required so that handlers, applicators and emergency responders can identify hazard class without reading the full technical sheet. The four-colour scheme communicates LD50-based toxicity classes mapping to required protective equipment, mixing precautions and storage segregation.

Implementation

The scheme is enforced under The Insecticides Rules, 1971 by the Central Insecticides Board and Registration Committee (CIB-RC) under the Directorate of Plant Protection, Quarantine and Storage (DPPQS), Ministry of Agriculture and Farmers Welfare. The four categories are:

  • Red (Category I) — extremely toxic, signal word POISON.
  • Yellow (Category II) — highly toxic, signal word POISON.
  • Blue (Category III) — moderately toxic, signal word DANGER.
  • Green (Category IV) — slightly toxic, signal word CAUTION.

The diamond shape and triangle split is standardised; the colours are non-negotiable for products registered under Indian regulation.

Adoption context

The colour-code label appears on every registered insecticide, fungicide and herbicide container sold in India. State pesticide inspectors enforce compliance during retail and warehouse inspection. The system guides personal protective equipment requirements, applicator licensing in some states, and disposal of empty containers.

Limitations

The system communicates acute toxicity only; chronic, endocrine and environmental hazards are not captured. Many smallholders, particularly those with limited literacy, ignore or misinterpret the symbols. Counterfeit and re-bottled pesticides sometimes bear incorrect or absent labels. PPE compliance during spraying remains uneven across categories, with red-label products often handled without adequate respiratory protection.

See also Spray Adjuvants Stickers, Ipm Vegetables, Ipm Chilli Spray Schedule and Groundnut Foliar Spray Schedule.

References

  1. Label on Pesticide Products. Press Information Bureau, Government of India.
  2. DPPQS CIB-RC Registered Products. Directorate of Plant Protection, Quarantine and Storage.