orange tree diseases

If we are growing orange trees, it is important to know the diseases to which it may be exposed. Given its multiple threats , it is important to keep an eye on it continuously.

Next we are going to show you the different diseases that the orange tree has. Would you like to learn more about it?


  • 1 Diseases that affect the orange tree
    • 1.1 Brown rot
    • 1.2 Gummoses
    • 1.3 Anthracnose

Diseases that affect the orange tree

It is important that our orange tree has a good subscriber. As long as you have enough compost, the chance of being attacked by pests or diseases will be reduced . However, sometimes this is unavoidable.

The main diseases that orange trees can have are:

brown rot

This disease is caused by some species of fungus belonging to the genus Phytophthora sp. (Phytophthora nicotiane var. parasitica and Phytophthora citrophthora) that directly damage roots. The symptoms by which it can be known that our orange tree is affected is because it causes gum exudates and cankers form at the base of the trunk. In addition, when the orange tree is sick, it can be seen how it weakens and defoliation and yellowing occur.


gummosis in orange trees

Gummosis is recognizable by a dark triangle-shaped spot appearing on the trunk at the bottom. The disease begins to affect the tree from the root and spreads throughout the entire trunk. The most visible symptoms are the cracks that form, the uncontrolled fall of the leaves and the yellow color . Sometimes gummosis exudations can also be observed.

To avoid this disease, waterlogging of the soil must be controlled so that it does not begin to occur in the root. The base can also be painted with liquid fungicides that have a high copper content.



This disease affects the leaves and fruits. It can be recognized by a brown spot on the leaves and some exudation on the younger branches. If the disease progresses, the fruits will have brown rot.

With this information you will be able to recognize if your orange tree suffers from some type of disease.

orange tree diseases

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