Written by Maggie
Dec 17 2020
When Zanzibar Gem stems become dark, we need first deal with roots rotted, and to make new soil maintenance. Stop water and control fertilizer. If suffering from diseases, spray dichlorvos to the soil, phoxim. In winter low temperatures, we need to control the temperature of 5 ℃ above, which is good to prevent frostbite.
Zanzibar Gem stem becomes black during growth, which may be caused by soil hardening, disease and insect damage, improper water and fertilizer, etc. First, it needs to be taken out of the soil, washed by clean water and cut off rotten roots, and then mixed with rotten leaf soil, rural soil, river sand and other materials to be conserved again in the basin.
If the Zanzibar Gem does not use proper water and fertilizer to cause the stem blackening, how can the Zanzibar Gem stem blackening be cured? At this time, it is not only necessary to cut the roots and change the soil, but also need to control the amount of watering. Wait for the soil to dry up before watering the basin soil, and also need to stop fertilizing the soil and wait for the Zanzibar Gem to gradually restore vitality before fertilization.
Zanzibar Gem stem blackening is caused by pests and diseases, so it should be moved to a ventilated and sunny environment, and the soil should be sprayed with DDVP, phoxim and other insecticides for control, but each time should not be sprayed for improvement, otherwise it will affect the normal growth of the plant to the root.
In fact, Zanzibar Gem is not cold resistant. If the winter 5℃ environment, then it is easy to freeze its roots, so as to make its Zanzibar Gem stem black. Then the black part needs to be treated, and then moved to a warm environment. The temperature is controlled at more than 5℃, to make it back to life.
When Zanzibar Gem leaves black processed in a timely manner to combine multiple reasons, when too much water should be watered in time to stop, water for each vehicle, air drying to spray mist around him, often keep the air humidity is around 80%, the sunshine is too strong will sick leaves off, put plants in the light and shade of astigmatism, avoid direct light.
Zanzibar Gem leaves hypertrophy, and the rhizome of the plant is rich in water. If in normal maintenance overwatering, it can cause the soil water caused branches to darken gradually. At this time it should be watered in time to stop, put plants in a ventilated place, to restore growth after water principle can keep them dry and wet.
In the growth process of Zanzibar Gem, it is sensitive to the air humidity. If it is a long time to plant in the dry air environment, it is easy to cause the black leaf blight. At this time it should be sprayed with a mist to the surrounding. In order to increase the humidity, even in high temperature seasons spray 1 ~ 2 times a day, and keep the air humidity around 80%.
Zanzibar Gem is a light-loving plant, but it is not suitable to be exposed to the sun outdoors for a long time, otherwise it will affect the metabolic function of the plant and the leaves will gradually turn black. At this time, the yellow leaves should be cut off and the plant should be moved to the place with soft light. In the high-light season, the leaves should be placed in the astigmatism place with half shade and half sun to avoid direct light and sunburn.
The root system of Zanzibar Gem has a high requirement on soil, so it is better to change soil frequently during the usual curing period, otherwise the root system is prone to rot and leaves turn black and fall off. At this time, soil should be changed in time. After proper pruning, the root system should be soaked in disinfection solution for a few minutes and then recultivated.