Edible Fungi Pests and Diseases and Prevention and Treatment Methods for Clivia Heat Stroke

Disease pattern: This disease occurs easily in humid and high-temperature seasons. The main cause is pathogens introduced by spraying water on the leaves or root rot and stem tip rot caused by long-term excessive moisture in the potting soil. Generally, in the early stage of the disease, the root tip growing point first rots, then gradually spreads, causing the stem tip and central leaf to rot. After the Clivia roots rot, the plant's normal physiological functions and absorption functions are destroyed, causing the temperature inside the Clivia to rise, hence the name heat stroke disease. This disease develops extremely quickly. Generally, within 1 to 2 days, and in severe cases even within a few hours, the plant temperature can rise from 25°C to 35-40°C, and in half a day the stem tip of the Clivia can rot.

Prevention and treatment method: If, when testing the temperature of the tissue at the base of the Clivia and the leaf rosette with the back of your hand, you find it is higher than or equal to human body temperature, it indicates that the Clivia has heat stroke disease. At this time, rescue measures should be taken by wiping the central leaves with cool water. At the same time, the Clivia can also be taken out of the pot, its roots rinsed with cool water, and then placed in a cool, ventilated place to continue observing whether the temperature at the base of the plant rises. If it continues to rise, surgical measures must be taken. The method is to use a sterilized sharp small knife to make a small vertical cut on both sides of the bulb of the central leaves, then rinse the central leaves one by one with cool water for 10 minutes, and afterward still place it in a cool, ventilated place for observation.

If the temperature does not continue to rise, it means the problem has been solved, and as long as management is strengthened, the disease will not continue to spread. If the temperature is still constantly rising, the central leaves must be checked to see whether the heart has already rotted. If the heart has not rotted, the plant can also be removed from the pot at this time, soaked in cool water for two hours, and then checked again. If the temperature continues to rise and the central leaves of the Clivia already show signs of rot, then major surgery must be performed, cutting off all leaves from the false bulb. In this way, the stem and roots can still be preserved, and it can be replanted to allow new shoots to sprout from the stem, preserving the variety. Apart from this, there is no better solution.