How to prevent yellow leaf disease in Clivia? This care routine is enough

Even without blooming, Clivia is still a very eye-catching bonsai, but flowers do not bloom often, and now even the leaves you look at regularly have problems. Do small yellow or yellowish-brown round spots appear on the leaves of your Clivia, and do these spots grow larger and gradually deepen, or does the entire leaf change color, eventually causing the whole plant to be infected and finally beyond saving, dying

When this happens, there is no doubt that your Clivia has leaf spot disease. Once it is sick, you need to find the cause of the illness and then treat it accordingly. The symptoms and causes of leaf spot disease are as follows

Symptoms: 1. Irregular spots appear on the leaves, 2. Spots start from the leaf tip and keep extending inward, 3. Part of the leaf turns yellow, with the yellowed part having no regular pattern, 4. The entire leaf turns yellow from bottom to top, 5. The stem turns yellow first and gradually extends toward the leaf surface

Causes: 1. When fertilizing, fertilizer that has not been fully fermented was used, allowing these pathogens to multiply freely in the pot. 2. The grower does not repot for a long time, the soil no longer has the nutrients the plant needs, and the old soil contains a large amount of pathogens and bacteria. 3. The new soil used for repotting was not fermented and is relatively raw, then undergoes secondary fermentation by itself in the pot. 4. Poor ventilation in summer, and when fertilizing, all nutrients are unbalanced; nitrogen, phosphorus, and potassium should be applied according to the amount the plant needs, and when fertilizing, the fertilizer touched the plant's roots. 5. The leaf surface was exposed to strong sunlight, causing burns to the leaf surface. 6. Pests damage the plant's roots and stems

Treatment methods and prevention: When yellow leaves appear, promptly remove the diseased leaves. Do not be reluctant to do so, because if they are not cleaned up in time, they will affect healthy leaves. After cleaning, use carbendazim, which can be a wettable powder, to spray the plant. When watering, do not water at the pseudobulb area of mature flowers. In summer, pay attention to ventilation when growing flowers, and when the temperature is low, pay attention to heat preservation management. Regularly give the plant some medicines, such as carbendazim, thiophanate-methyl, chlorothalonil, and agricultural streptomycin. These fungicides can not only prevent pests and diseases but also reduce the occurrence of leaf spots

Therefore, corresponding measures should be taken for different causes. First, cultivate the plant's roots well and do not let the plant suffer root rot, so that the leaves can have sufficient nutrients. Then cultivate the plant's leaves well and prevent the leaf surface from being damaged. When fertilizing, be sure to use fully fermented fertilizer, and do not make the fertilizer concentration too high. Fertilizers such as nitrogen, phosphorus, and potassium should be used in balance. The time for changing soil is spring and autumn in the year. When using soil, do not choose raw soil. Only by caring for every plant with your heart can it grow better,