Some people do not think that it is a disease; in many books on flower pest prevention and control, there is no content to prevent the burning of Clivia. In the case of severe sun burn, the leaves of the clivia can be burned like a fire, showing a yellowing phenomenon, and when the disease is severe, the whole plant is dead. The cause of sun burning in Clivia is not caused by infection with pathogenic microorganisms, so professionals often call it "non-communicable diseases." It is a kind of disease phenomenon caused by improper maintenance or improper care. It is also called physiological disease in the industry.
Clivia, a semi-negative plant, does not tolerate high temperatures. People who do not know the habits of the Clivia can easily cause sunburn if they expose it to the balcony or other shady areas in hot summer days. The key word for this disease is: "Sunburn."
“Sunburn†refers to the burning of the leaf tissue by direct sunlight in the hot sun and the damage to the chlorophyll. It not only damages the tip of the young leaves, causes yellow water loss in the leaves, but also causes burns in the middle of the big leaves. Yellow spots, and continue to expand, and then the formation of round spots of varying sizes, so that rough foliage, lose their original luster. Sometimes green or yellow-white patches can be formed on the shiny or shady sides of the leaves, and even when it is severe, the edges of the leaf edges of the leaves can become scorched and necrotic. In short, Clivia in summer heat conditions, as long as the sun exposure, the incidence of sunburn up to 100%. For the prevention and treatment of sun burning in Clivia, you have learned about the cause of sun burning in Clivia. It can be prevented by targeted measures. The main points are two points, the first to be serious shade, the second to completely give up the drug.
Operating flower gardens, nurseries, parks and other units must set up arbours for the Clivia. After the beginning of summer and before the summer, it must be placed under a shed so that sunlight can transmit through the gaps in the shade and allow the plants to receive the weaker light from the scattering. Wherever it is placed, direct sunlight can be shielded at noon, and sunlight can be received obliquely in the morning and in the evening. Because if you do not see sunlight for a long time, it will have an adverse effect on the differentiation and development of Clivia orchid buds.
The home-grown Clivia is usually placed on desks, windowsills, balconies, etc. It also needs shading and sheltering. The clivia should be placed in a well-ventilated place with no direct sunlight and a soft light. If it is placed on a closed balcony, it should be replaced every other day to avoid lighting imbalances. After the summer and before the summer, when the room temperature exceeds 30°C, be sure to pay attention to ventilation and cooling, or move into the north room. If the summer heat is over, when the summer and autumn are in progress, the Clivia that is injured by the sunburn disease may be properly repaired to the yellow part of the tip and the leaf margin, or all the wounded leaves may be cut off to maintain its overall appearance. When pruning, you should choose to reduce the exudation of the wound before watering in the afternoon. Generally, the exudate at the cut will soon heal on its own, and the exudate stain may be wiped off after drying. In addition, 0.2% available nitrogen fertilizer can be topdressed.
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