Irish Independent - Farming : 2020-08-04

FORESTRY : 12 : 12

FORESTRY

12 Farming Independen­t Tuesday 4 August 2020 Farming Forestry Assessing spring frost damage YOUNG FOREST (use a circular plot) You will need: Heavy-duty twine exactly 8m long; One sturdy stick at least 1m in length; Pen, paper and calculator. Steven Meyen ■ ■ ■ Method ■ Place a stick on a mound and tie the twine to it; Keeping the twine taut, walk around in a circle (mark the ground where you started); Count the number of damaged trees with burnt leaders and write down this number; Multiply this number by 50. This will give you the number of damaged trees per hectare; Repeat the above process a number of times to get a good representa­tion of the damage. ■ ■ ■ ■ SENSITIVIT­Y TO LATE SPRING FROSTS — Tree species OLDER FOREST HARDY (use a rectangula­r plot) You will need: Measuring tape at least 20m in length; Four sturdy sticks; Pen, paper and calculator. ■ ■ ■ Method ■ Mark a rectangula­r plot that measures 10m by 20m; Use the sticks to mark the four corners; Count the number of damaged trees with burnt leaders (ignore damage to side branches); Multiply this number by 50, to get the number of damaged trees per hectare; Repeat the above process a number of times to get a good representa­tion of the damage. ■ ■ ■ ■

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