What does a pesticide's ‘signal word’ indicate?

The signal word on a pesticide label provides important information about the toxicity level of the product. Signal words are standardized terms that help users quickly assess the potential risk associated with handling and applying the pesticide. They typically fall into three categories: “Caution,” “Warning,” and “Danger,” with "Caution" indicating a lower level of toxicity and "Danger" denoting a higher level of risk. This classification helps applicators understand the precautions they need to take to use the pesticide safely and effectively.

While the expiration date, active ingredients, and manufacturing company may be relevant aspects of a pesticide's label, they do not convey the immediate risk or toxicity that the signal word signifies. Thus, understanding the signal word helps ensure the responsible handling and application of pesticides, which is vital for safety and environmental protection.