Once again the Arb Association have supplied support and guidance. Employers, including those who use subbies have a duty of care, which goes way beyond the ‘we work outside -we will be OK’ approach, that I have heard.
Click on the link below and make sure you have a comprehensive Covid 19 Health and Safety Policy
https://www.trees.org.uk/News-Blog/Latest-News/Covid-19-Safe-working-practices-in-arboriculture