What does the octagon signal word "Danger" signify on a pesticide label?

The octagon signal word "Danger" on a pesticide label signifies a high risk of harm. This indicates that the product is highly toxic and poses a significant risk to health if it is not handled, stored, or applied according to label instructions. The use of "Danger" alerts users that they must exercise extreme caution when using the substance due to the potential for severe health effects, whether through skin contact, inhalation, or ingestion. This is an important classification within pesticide labeling that helps ensure safety and proper handling practices by professionals and consumers.