‘In a sequence of dry years such as the drought we had, pollinators become limited because food sources are sparse,’ said Elsje Joubert Acting Technical Manager from Subtrop.
According to Joubert, ground water becomes depleted which adds to the underlying stress of avocado trees in the most sensitive stages of flower and fruit set which is usually August to October.
‘When the ambient temperature is warmer and the relative humidity remains low on average, pollen dries out and this affects pollination and fertilization of the flowers and hence, a reduced fruit set,’ Joubert said.
‘Avocado growers can obtain an average yield of ± 9.3 ton/ha, this is based on an industry benchmark study done in the Tzaneen area. We are currently farming avocado on just over 17 500 hectares in South Africa. , Joubert told the Herald.
New plantings result in roughly 1 000 newly planted hectares annually.
Based on an industry survey done in 2016, the avocado growers in South Africa employs 1 permanent worker on every 2.58 hectares and 1 seasonal worker on every 2.57 hectares.
Seasonal workers are mainly employed during the harvesting season which can stretch over 4 months, depending on the area.
Avocado pack houses employ 1 permanent worker for every 58 tonnes packed and a seasonal worker for every 106 tonnes avocados packed.’ The total South African production is ± 120 000 tonnes of avocados.
