What does the signal word DANGER, WARNING, or CAUTION indicate on a label?

• A. The level of acute toxicity and hazard severity; DANGER is most hazardous, CAUTION least
• B. The pesticide's environmental persistence
• C. The color coding of the label
• D. The recommended application timing

Answer: (D)

Signal words on a pesticide label communicate how dangerous the product is in terms of acute toxicity and overall hazard level, guiding the precautions you must take. DANGER indicates the highest hazard and usually means the product is highly toxic or caustic and requires the most protective measures. WARNING signals a moderate hazard, and CAUTION indicates a lower but still present hazard. These words help determine what PPE to wear and what handling steps to follow during mixing, loading, and application. They do not convey environmental persistence, label color coding, or when you should apply the product. Those aspects are covered elsewhere on the label. So, the key idea is that the signal word communicates hazard severity and the corresponding precautions.