Olive tree


The olive tree does not need an excessive amount of water, but too long a drought period can cause extensive damage to the crop. It is therefore advisable to limit irrigation in the winter period, also on the basis of the rainfall trend; in summer, however, the water resources administered must be greater, also because at the end of the hot season the olives resume their development interrupted at the end of spring and require more frequent watering. If this were not the case, the quality of the fruit would suffer greatly. In any case, water stagnation must be avoided, which cause root rot. An excellent method of irrigation is the drip irrigation, which allows you to wet the surface of the soil or directly the roots with thin jets.

How to grow and care for the olive tree

The ideal soil for growing this plant is deep, well drained, poor in clay and with a neutral or basic pH. Before planting it is essential to work the soil, breaking the most surface layer to make it more ventilated and eliminating weeds; after planting it is necessary to carry out a mulching operation with organic materials such as straw, in order to improve the fertility and drainage of the soil. It is important to prune the plant annually, between the end of winter and the beginning of spring, to eliminate old branches and encourage the growth of smaller ones; the internal branches that hinder the general supply of light must also be removed. The cuts made must be clean, and for this purpose it is essential to use sharp and disinfected shears.


Before planting, a preliminary fertilization must be carried out, using natural fertilizers such as manure; subsequently it is advisable to fertilize twice a year, at the beginning of spring and during the summer, reconciling a product based on potassium, phosphorus and nitrogen with the organic substances. These three macro-elements are fundamental for a correct development of the plant: the first improves the quality of the fruits, the second strengthens the roots and the third promotes the growth of the vegetative parts. Equally important are the microelements, which in turn must be contained in the fertilizer used; among these we must mention magnesium, zinc, manganese, boron and copper. The fertilizer can also be administered in liquid form, together with irrigation water.

Olive: Exposure, diseases and parasites

The olive tree needs a bright and sunny exposure; it prefers environments with a temperate climate, not too humid and sheltered from excessive winds. It can withstand low temperatures, but it is necessary, for the health of the plant, that they do not fall below -5 ° C. Very annoying, among the fungal diseases, is the peacock’s eye, which manifests itself with spots on the leaves and causes their fall, together with the drying of the branches; products based on copper oxychloride are recommended for the treatment. Also harmful is wood decay, which can be recognized by swellings or depressions on the woody parts and requires the use of specific fungicides. As a parasite, much feared is the olive fly, which feeds on the fruits and can be contrasted with both chemical solutions,

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