REPS

Hedges

The birds have flown the nest. September starts the hedgecutting season from now until the end of February. There has been criticism of hedgerow management over recent years. Understanding the nature of hedgerow growth helps to get it right.

Healthy dense growth at the base of the hedgerow keeps it stockproof. Routine trimming is required to retain a dense base in a hedgerow and prevent hedgerow shrubs growing into mature trees.

Side trim to a triangular shape, sloping sides from a wide base. This prevents self-shading, allowing light to the base. Light encourages growth. This is important, particularly on north facing sides. Leave the peak as high as possible.

Level of cut

Cut stems a little above the last cut, leaving about 0.5 centimetre of new growth. This will be a little further out each time. When cut, dormant buds below the cut are stimulated to burst. Almost all new growth comes from within a few centimetres of the cut. This results in a dense mass of new shoots and a vigorous hedgerow.

Cutting back to the same level each time depletes the energy in the hedgerow. It uses its energy growing a small number of long shoots, rather than a dense mass of shoots. Repeated cutting to the same level forms scar tissue on the cut, discouraging new growth.

Trees

Leave occasional mature trees and saplings, including thorns at irregular intervals. Trees such as sycamore, beech and chestnut that cast a dense shade weaken hedgerows.

Machinery

A clean cut is required. Shattered or frayed branches can lead to decay and disease, and reduce the vigour of the hedgerow. Sharp edges on cutting equipment are essential to give a clean cut.

Contractors Course

A Hedgecutting Course for Contractors is planned in Teagasc Kildalton on 8th and 9th October.