Barrell On ... Tree risk not always a numbers game

How we assess the risk from trees matters because the consequences of getting it wrong can be both spectacular and devastating when a tree fails. Traditionally, arborists used their eyes and experience to work out what to cut off and what to leave. In retrospect, this was quite a hit and miss approach. But it worked because the risk from trees was kept very low - a legacy that we still enjoy today.

by Jeremy Barrell

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