Pruning

Pruning

Pruning

Keeping your avocado trees to a manageable size is an important orchard management tool. Tree size management is most often carried out by pruning, although sometimes Plant Growth Regulators are used to manage tree size in conjunction with pruning.

Pruning trees from when they are small will mean they can be effectively pruned with loppers and a pruning saw as the cuts required will be small. The waste can be effectively mulched with a regular tractor towed mulcher, returning organic matter back to the orchard. Regular pruning will ensure the canopy remains vigorous and the tree productive.

High density planting necessitates pruning at least once or twice a year. At Lynwood we prune twice per year as follows:

Spring:

  • As soon as possible after harvest carry out the ‘spring’ prune. As this is done in spring it will be an invigorating cut which will result in much regrowth.
  • Attempt to remove approximately 25% of the canopy in two or three large cuts. These cuts should be made a metre or less from the ground.
  • Target the most offending limbs. These can be limbs that:
    • Because of their height shade branches on the same tree or the neighbouring tree.
    • Protrude into the laneway restricting access.
    • Cross over from one side of the tree to the other.
    • Are too low, so any fruit setting on them would grow on the ground.

When cutting, leave a stump which will encourage growth at that point.

Autumn

Much growth will have occurred since the spring prune. The purpose of the autumn prune is to tidy up the trees with many smaller cuts, right around the tree. Cut those branches that:

  • Are too tall that would prevent fruit being harvested from the ground when using 600 mm short arm pickers.
  • Protrude into the laneway restricting access.
  • Cross over from one side of the tree to the other.
  • Are too low, so any fruit setting on them would grow on the ground.

When cutting, thought has to be given to leaving sufficient flowering wood (flower bud will already be evident) for the following spring. Cut to an outward facing branch to discourage new sprouting.