What is the role of copper in apple production?
Copper is required for chlorophyll synthesis and is a constituent of enzymes responsible for the reduction of molecular oxygen.
Copper deficiencies in apples
Terminal leaves develop brown necrotic areas, curl upwards and become distorted. This disorder is known as ‘wither tip’ or ‘summer die-back.’
Severe deficiency results in cracking of the bark and profuse sucker development from the tree base.
