Cinnabar root is not resistant to drought, so in the cultivation of cinnabar root, if the water is insufficient, making it too dry for a long time, it will lead to the phenomenon of dry leaves. Of course, this is not only refers to a long time without watering, when pouring half of the water, it is also easy to cause the root system of cinnabar root to lack of water, and the leaves are dry and scorched and drooping.
In addition, the root and leaf of cinnabar may be drooping due to diseases and insect pests, often manifested as bacterial wilt.
The main manifestation of bacterial wilt is that there is no abnormality in the plants on the ground, but in the daytime, they suddenly lose their vitality, part of the ground withers, and part of the stems and leaves remain green. This process is relatively rapid, first of all, root lesions decay, and then gradually upward invasion.
Because the long-term drought of cinnabar root is easy to cause the leaves to dry and droop, so watering must be sufficient and reasonable. Pay attention to keep the soil moist but not ponding. Water it thoroughly.
It is necessary to prevent and control the bacterial wilt in order to avoid further damage. Bacterial wilt is easy to occur under the condition of high temperature, high humidity and long-term non replacement of soil, hardening or partial application of nitrogen fertilizer by watering, so we should first prepare from the growing environment to avoid these adverse conditions. In case of bacterial wilt, it is necessary to spray streptomycin in time for control.
