If a product label changes after purchase, which direction should you generally follow?

• A. Follow the label that came with the product.
• B. Follow the new label if additional safety regulations have been placed or a phaseout date exists; otherwise follow the original label.
• C. Never use the product if the label changes.
• D. Use state law instead of either label.

Answer: (B)

Pesticide labels are the legal instructions you must follow when using a product. If the label changes after you’ve bought it, you generally follow the new label only if the change brings additional safety requirements or sets a phaseout date. If there aren’t new safety rules or a phaseout, you continue under the original label that was in effect when you purchased the product. This approach recognizes that updates meant to improve safety or end-use availability override previous language, while otherwise allowing continued use under the label you initially received. Always check for any updated labeling or addenda at the time of use and consult the manufacturer or extension service if you’re unsure.