What does a signal word indicate regarding a pesticide?

A signal word on a pesticide label serves as an important indicator of the relative acute toxicity of the product to humans and animals. This classification helps users quickly assess the potential health risks associated with handling or using the pesticide. Signal words, such as "Caution," "Warning," and "Danger," provide a straightforward means of evaluating the immediate toxicity level; "Danger" indicates a higher level of toxicity, whereas "Caution" pertains to lower toxicity levels.

Understanding the meaning of the signal word is crucial for ensuring safe handling and application, as it informs users about the necessary precautions to take to avoid harm. It does not specify application methods, environmental impacts, or active ingredients, although these are also important factors when assessing a pesticide’s safety and effectiveness.