Which signal word indicates that a product is least toxic to an applicator?

The signal word "Caution" is used to indicate that a pesticide product is the least toxic to applicators and the environment compared to the other classifications. Signal words are part of the labeling system that conveys the level of toxicity associated with the pesticide.

When "Caution" is used on a label, it suggests that the product may still cause some harm but is significantly less hazardous than those labeled with "Warning" or "Danger." A product labeled with "Danger" indicates that it can pose a high level of risk and has a greater potential for acute toxicity. Similarly, "Warning" reflects a moderate level of toxicity but is still more serious than "Caution." The term "Hazard" by itself isn’t a specific signal word as defined by the categories for pesticide labeling, and thus does not directly indicate toxicity levels.

Understanding these classifications helps applicators assess the level of precautions needed when handling pesticide products, focusing particularly on minimizing exposure and ensuring safety during application.