What is the most dangerous label on a pesticide?

• A. Danger-Poison
• B. Warning
• C. Caution
• D. Flammable

Answer: (A)

Signals on pesticide labels convey how dangerous the product is and what precautions are needed. The label that combines Danger with Poison communicates the highest acute toxicity risk—exposure through ingestion, inhalation, or skin contact can cause serious harm or death. That’s why it’s considered the most dangerous option: it warns you to take the strongest precautions and follow all label directions closely.

warning and caution indicate progressively lower levels of toxicity, while flammable points to a fire hazard rather than the poisoning risk. A product can be both highly toxic and flammable, but the Poison Danger label specifically signals the greatest threat to health from exposure. Always follow the label instructions, use the appropriate PPE, and store and handle the product safely.