Toxicity Color Triangles and Chemical Classification
Under the Insecticides Act, every commercial pesticide package must display a mandatory color-coded toxicity diamond indicating its acute hazard level.
Understanding these labels helps farmers select safer chemical formulations and exercise appropriate safety precautions.
- Red triangle (Extremely toxic): Highest toxicity requiring stringent personal protection and authorized application
- Yellow triangle (Highly toxic): High toxicity requiring full protective gear, respirators, and strict pre-harvest intervals
- Blue triangle (Moderately toxic): Moderate toxicity standard for many modern selective field insecticides
- Green triangle (Slightly toxic): Lowest mammalian toxicity profile, common among bio-pesticides and specialty actives
Major Formulation Codes and Preparation
Insecticides are manufactured in distinct physical formulations tailored for foliar spraying, seed dressing, or soil incorporation.
Always mix formulations following recommended dilution procedures to ensure uniform plant distribution.
- EC (Emulsifiable Concentrate): Oil-based liquids that form milky emulsions when mixed with water
- SC / FS (Suspension Concentrate): Fine solid particles suspended in water for smooth spraying and seed treatment
- WG / WDG (Water Dispersible Granules): Dust-free granules that dissolve completely in the sprayer tank
- GR (Granules): Coarse solid granules engineered for soil broadcasting or furrow placement
Operator Safety, First Aid, and Container Disposal
Applicators must never spray against the wind, eat, drink, or smoke during application.
In case of accidental chemical contamination or pesticide poisoning, remove contaminated clothing immediately, wash skin with plenty of soap and water, and seek immediate medical care with the product label.
Follow triple-rinsing and container puncture protocols before safe disposal.
- PPE equipment: Wear chemical-resistant gloves, face mask, eye goggles, and protective overalls
- Triple rinse protocol: Rinse empty containers three times with water, pouring rinsate into the sprayer tank before puncturing
- First aid awareness: Keep specific antidotes (such as Atropine for organophosphates) accessible at local primary health centers
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What do the color triangles on pesticide boxes represent?
They indicate acute mammalian toxicity: Red is extremely toxic, Yellow is highly toxic, Blue is moderately toxic, and Green is slightly toxic.
Why is spraying against the wind hazardous?
Spraying against the wind blows fine chemical mist back onto the operator's face, skin, and clothing, causing acute poisoning.
Where can farmers verify if an insecticide is legally registered in India?
Official legal approvals and registered crop dosages are published by the Central Insecticides Board & Registration Committee (CIBRC).
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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