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Mushrooms cause spots on the leaves of the medlar
About black spots on the glossy medlar - What helps
If the loquat gets black spots on the leaves, you should get to the root of the cause. Both mushrooms and wrong care measures can be considered. Proper prevention reduces the danger.
fungal diseases
Various fungi cause diseases commonly referred to as leaf spot disease. Frequently, the spots are bordered and enlarge with a strong fungal attack, until they finally take the entire leaf area. Left untreated, the fungal diseases cause the leaves to wither and die off. Which fungus is specifically responsible for the damage, is difficult to determine by the color.
The tan is a common fungal disease that shows up on the leaves of the glossy medlar. The fungal spores settle preferentially on young leaves, but also on the foliage of weakened and sick plants. Rain and wind favor their spread. Ideal growth conditions can be found in a humid environment with warm temperatures. A disease can be recognized by the spots on the leaf surfaces. The spots can appear red, brown or black. In the case of a heavy infestation, the spots spread strongly on the leaves.
drought stress
Spotty discolouration can be caused by unfavorable weather conditions. Drought stress is a possible cause of sudden leaf spots that appear in spring or summer. While the stress response in winter is caused by prolonged soil frost combined with direct sunlight, prolonged summer heat spells promote the development of spots.
In both situations, a lack of water is the reason for the discoloration. In winter, the roots in the frozen soil can not absorb water. The plants lose fluid when the winter sun shines on the leaves. In summer, this fluid deficit arises when the plants are not regularly watered.
Preventive measures
Look for the perfect location that will give your loquat the ideal conditions for growing. An ideal place offers protection from the direct sun and strong winds. The substrate is loose and well drained. Glossy medlars must not be too close together, otherwise the foliage will not be sufficiently ventilated. The result is a moist microclimate, which provides fungi optimal living conditions.
Strengthen your plants with: