Lotus leaves turning black
The editor will explain the content about hydroponic flowers, especially the lotus. The blackening of lotus leaves is a common issue. Let's follow the editor to see the specific details!
The lotus, also known as the bowl lotus or pot lotus, is literally a type of荷花 (lotus) planted in a bowl. It is a type of莲花 (lotus) planted in a bowl, specifically for display on indoor tables to beautify the living environment. The lotus is native to Jiangsu, with the produce from Suzhou being the most famous. There are many records of it in ancient Chinese literature. Now, the lotus has also become one of the optional flowers for home cultivation. During the maintenance process, some problems may arise. Many flower enthusiasts have reported encountering the issue of blackening leaves in the lotus, which not only affects the visual enjoyment but also severely threatens its healthy growth.
The blackening and rotting of lotus leaves are usually caused by the following reasons:
1. Over-fertilization causing fertilizer damage;
2. Bacterial infection;
3. Insufficient light and excessive humidity;
4. Dirty water or water deficiency.
The following measures can be taken to deal with the above situations:
1. Change the water immediately if over-fertilized, or repot the soil if too much bottom fertilizer is used;
2. Leaf diseases can occur during the growing period. It is necessary to cut off the bad leaves and spray with 50% carbendazim at 1000 times dilution or an appropriate amount of pesticide;
3. Increase the duration of sunlight;
4. Directly changing the water can lead to changes in water temperature and pH. The correct method is to add water of the same temperature after some water has evaporated. If there is a lack of water during the growing season, the leaves are prone to burn the edges.
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