What is the purpose of a signal word on treated seed packaging?

The purpose of a signal word on treated seed packaging is to indicate the level of hazard associated with the seed treatment. Signal words serve as a quick reference for users to gauge the potential risk when handling the product. In the context of treated seeds, these words can alert farmers or consumers about the toxicity of the chemicals used in the seed treatments, guiding them to take appropriate safety precautions.

For example, a signal word like "Danger" indicates a high level of toxicity, while "Caution" suggests a lower level of hazard. This classification helps ensure that individuals who handle or plant the seeds are aware of the necessary safety measures to prevent exposure or adverse health effects.

Other options, such as indicating the price or growth rate of the seed, do not align with the function of a signal word, as they relate to commercially evaluative characteristics rather than safety information. Similarly, the germination rate, while important for seed quality, is not communicated through the signal word mechanism. The focus of the signal word is strictly on hazard levels, making it a critical element in the labeling of treated seeds.