What about the rotten roots of a gentleman's orchid?
The root rot disease of Cymbidium may occur all the year round, but it is mostly occurred in summer, mainly due to the specific environment of high temperature and humidity and the grower's lack of maintenance knowledge. the main causes and control measures are introduced as follows.
Rotting Roots of Cymbidium caused by improper selection of flowerpots
Nowadays, for the sake of beauty, some people keep magnolia in porcelain pots, plastic pots or purple sand basins with poor air permeability and water permeability. After watering in summer, due to the poor permeability of the basin, difficult air circulation, root respiration is blocked, resulting in rotten roots.
Rotting roots of Cymbidium caused by improper watering and fertilization
Although some people plant magnolia in the mud basin, they are afraid of lack of water and fertilizer in summer, watering the basin topsoil when it is dry (in fact, the pot soil is still wet), and often applying thick fertilizer, coupled with the rapid reproduction of some harmful bacteria in summer, resulting in rotten roots.
How to prevent the rotting roots of Cymbidium?
Whether it is vegetative growth settlement (from seedling stage to pre-flowering stage) or reproductive growth stage (after flowering), the suitable growth temperature is 15-25 degrees. The general family raises the gentleman orchid all lacks the necessary environmental equipment, this should proceed from the actual situation, in the hot and humid summer, in addition to taking shading, ventilation, cooling and other measures, but also from the point of view of controlling its growth (putting the plant in a dormant or semi-dormant state, which is conducive to the growth and development of other seasons), strengthen root conservation in summer.
1. To raise magnolia, you need to use a mud basin.
2. No fertilization or a small amount of light liquid fertilizer in summer.
3. Control watering in summer and never water until it is dry. In order to prevent the summer water from stuffy roots, you can use a large wooden box to hold wet sawdust, bury the flowerpot (no watering in the pot), and then often check to see that the sawdust is dry and then replenish the spray.
First aid measures for rotting roots of Cymbidium
In case rotting roots happen inadvertently, they should be rescued quickly. First, remove the rotten root of the orchid from the basin, remove the soil, cut off the orchid root, wash the root with clean water, then soak the orchid root with potassium permanganate aqueous solution, and then wrap all the leaves with white paper, exposing the root, the root facing the sun, basking in the sun for half an hour, using ultraviolet light to kill bacteria. After the treatment of the above methods, if only a few roots of the diseased plant rot, they can be directly planted in the sterilized nutritious soil, less watering in the first half of the month, and the growth can be restored after one and a half months; if more than half of the roots of the diseased plant rot or all rot, it should be planted in a basin filled with fine sand and placed in a cool place to sprout new roots, about 2 months after the new roots grow, and after changing the nutrient soil, normal management can be carried out.
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