Exobasidium camelliae
Exobasidium camelliae
Exobasidium camelliae is a plant pathogen that affects camellia plants. It is a type of fungus that causes leaf gall, a common disease in camellias. The fungus infects the leaves of the camellia plant, leading to the formation of abnormal growths known as galls. These galls can vary in size and color, often appearing as white or pinkish swellings on the leaves.
Symptoms[edit | edit source]
The symptoms of Exobasidium camelliae infection typically include the formation of galls on the upper surface of the camellia leaves. These galls may start off as small, raised bumps and gradually enlarge, becoming distorted and discolored. In severe cases, the galls can cover a significant portion of the leaf surface, affecting the overall health and appearance of the plant.
Disease Cycle[edit | edit source]
Exobasidium camelliae spreads through spores that are released from the galls on infected leaves. These spores can be carried by wind or water to nearby camellia plants, initiating new infections. The fungus thrives in moist conditions, making proper plant hygiene and watering practices essential in preventing the spread of the disease.
Management[edit | edit source]
To manage Exobasidium camelliae infection, it is important to remove and destroy any infected leaves or plant parts to prevent the spread of the fungus. Pruning affected branches and promoting good air circulation around the plants can also help reduce the risk of infection. Fungicidal treatments may be necessary in severe cases, but prevention and early detection are key in managing this disease.
Prevention[edit | edit source]
Preventative measures for Exobasidium camelliae include planting camellias in well-draining soil and avoiding overhead watering, which can create ideal conditions for fungal growth. Regular inspection of the plants for any signs of infection, such as galls or discoloration, can help catch the disease early and prevent its spread to other plants in the garden.
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Contributors: Prab R. Tumpati, MD