Common Monkey Plant Diseases:
How to Identify and Treat

Plants are susceptible to various diseases, and monkey plants are no exception. Monkey plants, also known as monkey puzzle trees or Araucaria araucana, are evergreen coniferous trees native to South America. These unique plants can be a stunning addition to any garden or landscape. However, they are prone to certain diseases that can affect their overall health and appearance. In this article, we will discuss some common monkey plant diseases, how to identify them, and the appropriate treatments.

1. Leaf Spot Disease

Leaf spot disease is a common fungal infection that affects monkey plants. It is characterized by the presence of small, dark-colored spots on the leaves. Over time, these spots may enlarge and merge together, causing the affected leaves to turn yellow or brown and eventually fall off.

To identify leaf spot disease in monkey plants, closely examine the leaves for the presence of small spots with dark centers. The spots may have a yellowish halo around them.

To treat leaf spot disease, it is essential to remove and destroy any infected leaves or branches. Avoid overhead watering as it can promote the spread of fungal spores. Applying a fungicide specifically formulated for leaf spot diseases can also help control the infection.

2. Root Rot

Root rot is a serious disease that affects the roots of monkey plants. It is caused by various fungi that thrive in wet and poorly drained soil conditions. Symptoms of root rot include wilting foliage, yellowing of leaves, stunted growth, and a foul odor coming from the soil.

To identify root rot in monkey plants, carefully inspect the roots for signs of decay. Healthy roots should be firm and white, while infected roots may appear black, slimy, or mushy.

To treat root rot, it is crucial to improve drainage in the soil by ensuring proper water management. Avoid overwatering and provide adequate soil aeration. If the root rot is severe, it may be necessary to remove the affected plant and replant in fresh, well-drained soil.

3. Needle Blight

Needle blight is a fungal disease that primarily affects the needles of monkey plants. It is characterized by the presence of brown or blackish lesions on the needles. As the disease progresses, the infected needles may turn yellow or brown and fall off prematurely.

To identify needle blight in monkey plants, carefully examine the needles for the presence of discolored lesions. The lesions may have a distinct border and can vary in size and shape.

To treat needle blight, it is essential to prune and destroy any infected branches or needles. Applying a fungicide specifically formulated for needle blight can help prevent further spread of the disease.

4. Powdery Mildew

Powdery mildew is a common fungal disease that affects a wide range of plants, including monkey plants. It is characterized by the presence of a white, powdery coating on the leaves and stems. Infected leaves may also become distorted or curl.

To identify powdery mildew in monkey plants, look for the presence of a white powdery substance on the upper surface of the leaves and stems. Infected leaves may also exhibit yellowing or browning.

To treat powdery mildew, it is important to improve air circulation around the plant by pruning overcrowded branches. Regularly remove and destroy any infected leaves or stems. Applying a fungicide specifically formulated for powdery mildew can also help control the disease.

5. Canker

Canker is a fungal infection that affects the bark of monkey plants. It is characterized by the presence of sunken, discolored areas on the trunk or branches. Over time, these areas may enlarge and cause cracking or splitting of the bark.

To identify canker in monkey plants, carefully inspect the trunk and branches for the presence of sunken, discolored areas. Infected areas may also exhibit oozing or gumming.

To treat canker, it is important to prune and destroy any infected branches or bark. Applying a fungicide specifically formulated for canker diseases can help control the infection.

In conclusion, monkey plants are susceptible to various diseases that can affect their overall health and appearance. By familiarizing yourself with the common diseases and their symptoms, you can promptly identify and treat any issues that may arise. Remember to always follow proper cultural practices, such as improving drainage and avoiding overwatering, to prevent the occurrence of these diseases. With proper care and attention, your monkey plants can thrive and continue to be a beautiful addition to your garden or landscape.