Tel: 01425 651470

Briefing Note on UK Summer Branch Drop

Summer Branch Drop is a poorly researched phenomenon broadly characterised by long branches breaking from large mature trees with no obvious visible defects, following extended dry periods in summer.  There has been little scientific investigation into the failure mechanism, but there is an accumulating body of anecdotal evidence providing some insights into how the risks of failure and harm might be managed.  Although it is not yet possible to reliably identify the individual branches that may fail, there are emerging trends in the reported incidents that provide an indication of the most vulnerable tree types and the time that the risk of failure peaks.


PDF Download