What signal word would your mixture have if you mixed a Danger-Poison label pesticide with a Warning label pesticide?

• A. Danger-Poison
• B. Warning
• C. Caution
• D. Immediate Hazard

Answer: (A)

When two pesticides are mixed, use the most restrictive signal word from the components to describe the mixture. That signal word communicates the highest level of acute toxicity and drives the required precautions, PPE, and handling.

Mixing a Danger-Poison product with a Warning product means the overall hazard is the higher one—Danger-Poison. So the mixture should be treated and labeled with Danger-Poison, reflecting the greater risk.

Warning and Caution indicate lower levels of hazard, so they wouldn’t accurately describe the mixture’s risk. Immediate Hazard isn’t a standard pesticide label signal word in this context, so it wouldn’t apply here.