Correction of zinc deficiency through dormancy and foliar spray applications has been found to be extremely difficult. A common general effect on young trees is reduced shoot growth or stunted leader growth with multiple shooting from the base of the tree. On bearing trees, canopy growth and yields may be seriously affected. Other symptoms include the delay or even failure of buds to shoot and early defoliation. The reduced size of leaves is usually associated with bright yellowing between the veins, known as interveinal chlorosis.
Affected leaves are more pointed than normal.
Low zinc uptake may reduce tree health and yields, even though there are no obvious visual symptoms. Zinc deficiency symptoms Copper Copper deficiency can be a major problem with establishment of young trees. It is readily recognisable by speckling of leaves on shoot tips and, in extremely deficient cases, by the cessation of terminal shoot growth resulting in a condition known as 'wither tip'. Affected young shoots bend down readily, shrivel and die. Manganese Manganese deficiency is typically seen as pale areas on the leaf between darker green veins.