browsing animals. Installation of barriers to prevent livestock access to and beneath Chapter 3.2 of trees. Citing of food/water troughs away from trees. Provision of alternative shelter for livestock. Excessive shade cast on veteran . Clear vegetation around trees to reduce competition for light tree. Chapter 3.4.1.1 of (known as halo clearance). Damage to rooting area caused . Identify root protection zone and prevent harmful activities within by agricultural practices such as this area. The radius of the root protection zone should measure 15 ploughing or use of artificial Chapter 3.3 of times the diameter of the trunk or 5 meters beyond the canopy fertilizers or pesticides. (whichever is greater). Compaction of rooting area . Identify root protection zone and prevent harmful activities within caused by vehicular or this area. The radius of the root protection zone should measure 15 pedestrian traffic, Chapter 3.5.3.1 and 3.6 of times the diameter of the trunk or 5 meters beyond the canopy building/construction work, etc. (whichever is greater). Fear of damage to persons or . Move the sensitive item away from tree, where possible, to prevent property (e.g. greenhouse, Chapter 3.5 of damage. picnic bench). Management to prevent structural failure Management Challenges Potential Solutions Resources Potential failure of root plate, . Crown reduction/reduction of the length of limbs to reduce main trunk or large limb. Chapter 4 of biomechanical forces acting on the tree. It may be appropriate to undertake a phased reduction over a number of years to minimise the number and size of cuts and encourage growth lower in the crown. Propping or support heavy limbs. Bracing of trunk or limbs to prevent failure. Potential failure of large For trees which were once regularly cut but this management has long . on lapsed pollard (a tree since been abandoned the re-growth may be of such a large size that it Chapter 4 of once frequently cut but no causes concern of failure. It would not be appropriate to cut back to the longer managed in this way). original cutting point due to the large number and size of the wounds created. Options to reduce the risk of branch failure include:
browsing animals. Installation of barriers to prevent livestock access to and beneath trees. Citing of food/water troughs away from trees. Provision of alternative shelter for livestock. Chapter 3.2 of Excessive shade cast on veteran tree. Clear vegetation around trees to reduce competition for light (known as halo clearance). . Chapter 3.4.1.1 of Damage to rooting area caused by agricultural practices such as ploughing or use of artificial fertilizers or pesticides. Identify root protection zone and prevent harmful activities within this area. The radius of the root protection zone should measure 15 times the diameter of the trunk or 5 meters beyond the canopy (whichever is greater). . Chapter 3.3 of Compaction of rooting area caused by vehicular or pedestrian traffic, building/construction work, etc. Identify root protection zone and prevent harmful activities within this area. The radius of the root protection zone should measure 15 times the diameter of the trunk or 5 meters beyond the canopy (whichever is greater). . Chapter 3.5.3.1 and 3.6 of Fear of damage to persons or property (e.g. greenhouse, picnic bench). Move the sensitive item away from tree, where possible, to prevent damage. . Chapter 3.5 of Management to prevent structural failure Management Challenges Potential Solutions Resources Potential failure of root plate, main trunk or large limb. Crown reduction/reduction of the length of limbs to reduce biomechanical forces acting on the tree. It may be appropriate to undertake a phased reduction over a number of years to minimise the number and size of cuts and encourage growth lower in the crown. Propping or support heavy limbs. Bracing of trunk or limbs to prevent failure. . Chapter 4 of Potential failure of large on lapsed pollard (a tree once frequently cut but no longer managed in this way). For trees which were once regularly cut but this management has long since been abandoned the re-growth may be of such a large size that it causes concern of failure. It would not be appropriate to cut back to the original cutting point due to the large number and size of the wounds created. Options to reduce the risk of branch failure include: . Chapter 4 of