What typically indicates a pesticide may be harmful or dangerous?

The signal word "Danger" is used on pesticide labels to indicate a high level of toxicity. Pesticides that carry this signal word can cause serious harm or even death if ingested, inhaled, or if they come into contact with skin. It serves as a clear and immediate alert to users of the potential hazards associated with the product. This designation is part of the labeling system that helps ensure safety during the use and handling of pesticides, enabling applicators and consumers to make informed decisions regarding their use.

The other signal words, "Caution" and "Warning," indicate lower levels of toxicity compared to "Danger." While these may still denote the presence of risk, they do not indicate the same degree of severity. The absence of a signal word may suggest that the product has negligible risk, but this does not necessarily mean it is safe; it might simply mean that the product is not classified under the standard toxicity levels. Thus, "Danger" is the most direct indication of a pesticide's potential for harm or danger.