How to care for an oleander plant with brown leaves

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Owning an oleander plant can give a Mediterranean feel to your garden. The plant reaches heights up to 4 metres with dazzling blooms that range in colour from hot pink to soft creams and whites. Unfortunately, oleander plants are susceptible to a disease that causes leaves to turn brown, branches to droop and plant tissue to die. The name of this disease is "oleander leaf scorch" and the cause of the disease is a bacterium that goes by the name of Xylella fastidiosa.

Prune away any of the diseased tissue you find on the oleander. This includes leaves and whole branches. Removing the diseased branches and leaves will improve the overall health of the plant and better help it fight the disease. The best time to prune is immediately after the blooming season.

Examine the leaves and branches on a regular basis. Monitor the plant and make sure there are no new outbreaks of the disease. Check the plant at least once a week to catch new outbreaks before they get out of hand.

Cut the entire oleander tree down to the soil line if the oleander leaf scorch spreads to the greater part of the plant. When there is more infected tissue than healthy tissue, sometimes the only thing to do is remove all the tissue and let it grow all over again. It may seem a little frightening to cut down the oleander plant, but it may be the only way to replenish the healthy tissue.

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