A3 Keep it Clean forest biosecurity poster standard Last updated :28 Oct 2024 Topic: Using woodlands Sub topic: Forests and People Informational A3 poster to advise members of the public about steps they can take to avoid spreading tree pests and diseases. Summary Informational A4 poster to advise members of the public about steps they can take to avoid spreading tree pests and diseases. A3 Keep it Clean forest biosecurity poster standard PDF | (105.66 KB ) This file might not be suitable for users of assistive technology. Please contact us to request an alternative format. Share this page with others Copy link Email LinkedIn Facebook X formerly Twitter