What does the signal word "warning" indicate in pesticide labeling?

The signal word "warning" on pesticide labeling indicates a moderate toxicity level of the product. This classification informs users that while the pesticide is not classified as highly toxic, it still requires precautions during handling and application. It suggests that care should be taken to avoid exposure since it can pose some risks to health, particularly if ingested or inhaled.

In this context, the mention of "teaspoon to tablespoon to kill an adult" speaks to the potential lethality of the compound at certain quantities, reinforcing the caution to be exercised when using products with this signal word. It emphasizes the importance of adhering to safety guidelines and understanding the implications of toxicity levels associated with pesticides, particularly those labeled with "warning."

This is crucial for ensuring safe practices in pest control operations, especially in environments where children or pets may be present. The other options, which refer to safety around children, low toxicity level, and compatibility with other products, do not accurately reflect the meaning and implications of the "warning" signal word.