What must be included on pesticide products that may affect endangered species?

The correct answer highlights the importance of providing clear guidance for users of pesticide products that may impact endangered species. By including a label statement advising consultation of county bulletins, the pesticide application process ensures that users have access to specific, localized information regarding the presence of endangered species and any restrictions or guidelines necessary to protect them. This is vital, as the impact of pesticides can vary significantly based on geographical location and the surrounding environment.

County bulletins typically contain updated information about local ecological conditions, species status, and potential restrictions that users must adhere to in order to minimize harm to endangered species. This proactive approach not only helps in complying with legal requirements but also promotes responsible pesticide use and conservation efforts.

Other options do not adequately address the need to inform users about potential risks to endangered species or provide specific guidance for safe pesticide use in these sensitive areas.