The reason of yellow leaves of Yushu
The yellow leaves of Yushu may be caused by insufficient light. Yushu is suitable for growing in a sunny environment. If there is no light during the growing period, the leaves of Yushu will turn yellow. Therefore, sufficient light should be given in the flourishing period and flower bud differentiation period of Yushu to avoid yellowing of Yushu.
Too much watering can also cause the leaves of Yushu to turn yellow. Yushu is not tolerant of waterlogging. Once there is water in the basin soil, the roots will gradually rot, and the nutrients in the basin soil are difficult to be diluted, resulting in yellow leaves. At this time, it is necessary to stop watering, loosen the soil properly, and then transfer it to a ventilated place for maintenance. When the situation is serious, change pots for planting.
The yellow leaves of Yushu may be caused by soil discomfort in the basin. During the growth of Yushu, change pots every 1 ~ 2 years. If the flowerpots are not replaced regularly, the nutrients in the soil will be reduced. Flower pots are not suitable for Yushu to continue to grow. In this way, there is not enough room for growth, and the lack of nutrients in the soil will cause the leaves of Yushu to turn yellow.
Yushu is a succulent plant, which is vulnerable to pests and diseases, such as red spider. When Yushu is infected with Starscream, yellow spots will appear on the leaves, and then they will continue to expand. It is found that Yushu should be sprayed on the leaves in time after being infected with tetranychus urticae and cultivated in different soil again.