What is the primary concern addressed by a pesticide’s signal words on the label?

The primary concern addressed by a pesticide’s signal words on the label is the toxicity level of the product. Signal words serve as a quick reference to indicate the potential hazard that the pesticide poses to humans and animals. These words are categorized into different levels: “Danger,” “Warning,” and “Caution,” which correspond to the relative toxicity of the product.

For instance, "Danger" indicates high toxicity and that the product may cause severe injury or death if not handled correctly, while "Caution" denotes a lower toxicity level. This information is crucial for users because it informs them about the necessary precautions to take when handling, applying, or being exposed to the pesticide. By understanding the toxicity level indicated by these signal words, users can make informed decisions about how to safely use the pesticide in their agricultural practices.