Avocado Orchard Pruning
Product Type: Fruits – Avocado
Stage: Production & Harvesting, Handling & Storage
Problem: Irregular bearing of avocado crop
Solution: Pruning for balanced avocado trees stabilizes bearing and production
- Avocados are an example of alternate bearing trees which follow a natural cycle of high and low production seasons. But external stresses can result in highly irregular cycles.
- Maintaining plant nutrients, soil conditions, controlling pests, and adequately managing canopy is necessary to balancing trees.
- Trees growing an unbalanced proportion of reproductive and vegetative structures will have irregular production. Pruning removes excess organs and stabilizes production.
- Flower pruning prevents excessive avocado production and sustains flowering in subsequent seasons, avoiding the extremes of the high-low production cycles. This reduces tree resource depletion over time.
- Trials carried out from 2011 to 2014 across 10 orchards show that 30% canopy removal had some effect on the physical balance and production of the tree. Future tests of more than 30% canopy removal can confirm whether there is an ideal amount of pruning. Less than 30% removal has shown negligible impact on avocado yield. New Zealand Plant & Food Research also ran tests in 2014 on the effects of timing of avocado flower pruning by month in season to verify whether reductions in excessive flowering can improve yields.
- Orchards where high-yield is maintained through balanced tree growth and pruning have higher production in tons per hectare than non-pruned and managed orchards.