The reason for this phenomenonGenerally speaking, this happens because the plant is diseased. Although the chance of disease in brocade vine is low, some of them can cause the above phenomenon - anthracnose or leaf spot. There are many reasons for this disease, such as too much humidity in the surrounding environment, poor ventilation due to a closed environment, or it is stuffy and hot. How to prevent and treatThe first thing to say is of course to strengthen ventilation, which is conducive to improving the humid and stuffy environment. Plants planted in the courtyard can be ventilated by opening the door, which is relatively simple. If it is a potted plant, you can move it to a place where there is wind, such as a balcony. If you are worried about the plants getting cold in winter, you can open the window a little bit for a longer time. Pay attention to regular pruning and cut off diseased and weak branches. This will make the branches sparser and help ventilation, so as to avoid air pollution due to too strong breathing. Unscientific watering methods should not be ignored. Watering too much and causing the soil to be too moist also creates conditions for the breeding of diseases. Therefore, when watering, remember that if the soil is not dry, there is no need to water. In addition, in order to prevent the plants from being in overly humid conditions, you can transplant the plants appropriately and away from larger water sources. If black spots appear on the back of the leaves of the plant, you must actively treat it. You can buy symptomatic medicine as soon as possible and spray it once a week for two or three weeks. |
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