Loquat has black spots

Fungal diseases

Different fungi cause diseases that are commonly covered by the term Leaf spot disease be summarized. The spots are often outlined and, if there is a strong fungal attack, they enlarge until they finally take up the entire leaf surface. If left untreated, the fungal diseases lead to the leaves drying up and dying off. Which fungus is specifically responsible for the damage is difficult to determine based on the color.

Leaf tan is a common fungal disease that shows up on the leaves of the medlars. The fungal spores prefer to settle on young leaves, but also on the foliage of weakened and diseased plants. Rain and wind favor their spread. You will find ideal growing conditions in a moist environment with warm temperatures. A disease can be recognized by the spots on the leaf surfaces. The spots can appear red, brown, or black. If the infestation is severe, the spots spread heavily on the leaves.

Drought stress

Spotty discoloration can result from unfavorable weather conditions. Drought stress is a possible cause of sudden leaf spots that show up in spring or summer. While the stress reaction in winter caused by prolonged ground frosts in combination with a direct sunlight arises, prolonged heat waves in summer favor the development of Stains.

In both situations, a lack of water is the reason for the discoloration. In winter, the roots cannot absorb water in the frozen ground. The plants lose fluid when the winter sun shines on the leaves. This fluid deficit occurs in summer when the plants are not watered regularly.

Preventive measures

Look for the perfect location that offers your loquat optimal conditions to grow. An ideal place offers protection from the direct sun and strong winds. The substrate is loose and well-drained. Medlars should not be too close to each other, otherwise the foliage will not be adequately ventilated. As a result, a humid microclimate is created, which provides fungi with optimal living conditions.

Strengthen your plants with:

• a brew of field horsetail
• fertilization in spring
• regular watering