What is the recommended practice for posting signs on treated sites?

The recommended practice for posting signs on treated sites is to ensure that signs are clearly visible at all points of entry. This practice is essential for effectively communicating to the public that an area has been treated with pesticides and may pose a hazard to people or pets. By placing signs at all access points, you help ensure that individuals can easily see and read the signage, improving safety and awareness.

Clear visibility at all points of entry maximizes the effectiveness of the warning and is fundamental in preventing accidental exposure to treated areas. This approach is also consistent with best management practices in pesticide application, which prioritize the health and safety of the community.

The other choices do not promote adequate communication for site safety. Posting signs only at the main entrance may leave other entry points unprotected, while relying solely on digital signage could create access issues for people who do not have digital devices or may not see those digital warnings. Additionally, posting signs only after treatment fails to provide proper notification ahead of time, which is crucial for allowing people to avoid the area.