How to deal with the wound of the orchid s rotten roots

In fact, orchids like a moist environment, but the fleshy roots of orchids are afraid of waterlogging, so it is easy to rot roots if they are too wet or rainy, leading to many diseases. So how can you prevent orchid root rot?

Orchids (details).

In winter, orchids are in the dormant or slow growth stage, and the potting soil should be dry; Spring and early summer are important periods for the growth of orchid peanut roots, and the potting soil should be moist. However, long-term overhumidity is also easy to cause root rot, causing leaves to wither and even die. Because of excessive water, the soil is waterlogged and the air permeability is poor, resulting in insufficient oxygen, hindering the respiration of the roots, and causing the roots to turn black and rot. During the rainy season or rainstorm, the orchid must avoid its harm, because of the long rain and humidity, black spots are most likely to occur on the new leaves, and the stamens often have "rotten clothes", which affects flowering and ornamentation.

However, if the potting soil is too dry, it is easy to dry up the pseudobulb or other tissues to lose water and affect the metabolism, which will also lead to weak tissues and poor plant growth. In autumn, the potting soil should be wet, so as to facilitate the removal of leaves and flowers in the coming year. Therefore, orchid growers should know the trick of "not getting wet in winter and not dry in autumn".

The above illustrates the different water requirements of orchids at different times, so the amount of watering should be strictly controlled according to the requirements. At the same time, improper fertilization of orchids is also easy to cause root rot, such as too much fertilizer, too concentrated or liquid fertilizer into the leaf sheath, will have an adverse effect on orchid flowers. When fertilizing, the amount of fertilizer should also be increased or decreased according to the amount of watering, so that it can grow in harmony.

Wash, sterilize and disinfect, dry until semi-dry, and transplant on pots.

1. Depotting and root trimming.

After the orchid has rotten roots, it is necessary to immediately take off the pot and guess the roots before the ascension. Check the root system of the orchid, cut off the dead roots, old roots, and rotten roots at the bottom, and be sure to prune them cleanly. After pruning the root system, the root system should be washed to remove the bacteria attached to the roots, and after the roots are washed, the root system should be disinfected with potassium permanganate or carbendazim to avoid root rot and breeding bacteria.

2. Dry the roots.

After the roots of the orchid are treated, it is necessary to do a good job of drying the roots, and cannot be directly potted and planted. Put the orchid in a cool and ventilated place to dry the roots naturally, until the wound is slightly dry and curly, and it can also let the roots lose some of the water, which is easier to pot.

3. Prepare planting materials.

Prepare new planting materials for orchids and plant them, and the cultivation planting materials must ensure that they are loose, breathable, and have good drainage, and can use fire soil, pine bark, stones, bricks, peaty soil, oak bark, etc. Prepare the right-sized pots and pack the prepared planting material into the pots.

Fourth, replant on the pot.

Replant the treated orchids into the planting material, gently cover the roots, maintain a slightly humid environment, and keep them in a cool and ventilated place to promote the adaptation of orchid seedlings.

5. Post-management.

In order to avoid the recurrence of root rot in orchids, we must pay attention to controlling watering, avoid excessive water accumulation, and also control the application of noisy fertilizer, avoid topdressing thick fertilizer or raw fertilizer, and avoid excessive fertilization.

1. Prune the root system: Use sterilized sharp scissors to cut off the rotten roots of the orchid, then put it in a cool place, wait for the wound to heal and then replant. 2. Dividing propagation:

If the root system of the orchid is severely rotten, it is necessary to select healthy young plants for transplanting. 3. Causes of root rotten: Orchid root rot may be caused by excessive fertilization and suffering from pests and diseases.

1. Prune the root system

When the root rot of the orchid is relatively mild, only part of the root system is rotten, while the other root systems are relatively healthy. You only need to cut off the rotten roots, place them in a ventilated and cool place after disinfection, and wait until the wound heals before replanting.

2. Dividing propagation:

If the root rot of the orchid is more serious and has not been saved, it can be re-propagated at this time, for example, it can be propagated by dividing the plant, selecting some plants with relatively healthy growth, and planting them in the potting soil, so that the orchid potted plant will grow again soon.

3. The root cause of rot

Orchids have fleshy roots, especially when there are wounds in the roots, and the application of high concentrations of fertilizers leads to fertilizer damage, which eventually leads to root rot. Therefore, when fertilizing, it is necessary to apply thin fertilizer frequently, and when using fermented organic fertilizer or long-acting fertilizer, do not get too close to the roots to avoid rotten roots.

When orchids are threatened by pests and diseases, they will cause root rot, so it is necessary to use drugs to kill pests and diseases in time to allow the roots to grow healthily. At the same time, maintain a ventilated environment, watering to be moist but not wet, dry but not dry, and give certain light conditions every day to promote root absorption and growth.

There are many reasons for root rot in potted orchids, mainly as follows:

1. Poor potting soil. or poor water permeability, or rotten leaves are not fully fermented.

2. The fertility of the potting soil is too large, and the number of top dressing is too frequent, or it may be dense fertilizer and fertilizer, which damages the roots.

3. Improper watering. It may be the low temperature season in winter, the temperature is low, and the potting soil is in a moist and watery state for a long time.

4. The growth environment of potted orchid grass is not well ventilated, and the plants cannot breathe fresh air.

5. Pests. You can carefully observe the base of the leaves of the orchid potted plants to see if there are dense scale insects. The scale insect uses a needle to absorb the sap of the orchid leaves, which will also cause the leaves to turn yellow and dehydrated, and if there is one, the scale insect should be eliminated first.

Remedy: 1. Prune the root system.

Prune off all the dead roots, prune them cleanly, it is best to rinse them with water, that is, after pruning the root system, they should wash the roots to wash off the hidden rotten roots and germs.

2. Disinfection. After the roots of the rotten orchids are trimmed and washed, the root system is disinfected with potassium permenate or carbendazim or plant ash, mainly to disinfect the wounds of the pruned orchids, because the rotten root system is easy to breed pathogens.

3. Dry the roots. Then put it in a cool and ventilated place to dry the roots naturally, and dry the wound until it begins to curl, and the root drying is to let the root system take off part of the water, so that it is easier to serve the pot.

4. Potting maintenance.

Do not use the original soil, replace the new soil, the potting soil should be permeable and breathable, use the bark, ceramsite or phytolite, the ceramsite is more wet and heavy, the proportion is less, and the proportion of bark and phytolite is higher.

5. Do not fertilize.

Do not fertilize before serving pots without sprouts, fertilization will easily lead to a greater burden on orchid roots, poor vitality of roots without potting, water absorption and metal ion exchange have not been carried out, and fertilization will lead to changes in osmotic pressure, causing a greater degree of dehydration.

Reason: Orchid growth needs sufficient light, if the long-term lack of light will affect the growth, but also affect photosynthesis, the potting soil can not receive light, water will remain in the soil for a long time, the roots can not breathe will appear rotten roots.

Solution: Increase the light in moderation and give it about 4 hours of light every day, but do not accept sun exposure.

Reason: If the orchid grows in an unventilated environment, it will be easy to stay in the potting soil after watering, and long-term stagnant water will lead to root rot.

Solution: Appropriately increase the ventilation of the growth environment, so that the water in the potting soil becomes dry faster, and the window can be properly opened for ventilation after watering in daily maintenance.

Reason: Many flower lovers do not control the amount of watering well, and if they overwater for a long time, water will accumulate in the potting soil, and the roots of orchids will also rot due to water accumulation.

Solution: Reduce the amount of watering, wait for the potting soil to become dry before watering, and stop watering when the temperature is too low.

Reason: Usually the amount of fertilizer is too large, it can't absorb the excess fertilizer, or it has a wound in the roots, it will suffer from fertilizer damage, resulting in rotten roots.

Solution: Appropriately reduce the amount of fertilizer, to achieve thin fertilizer diligent, when applying organic fertilizer to avoid close to the roots, if the amount of fertilizer is large, increase the amount of watering appropriately, so that the fertilizer is discharged more quickly.

After the orchid rots its roots, it can be removed from the old pot and pruned properly. After pruning, the roots of the orchid can be soaked in carbendazim solution for disinfection and sterilization. After soaking, the orchid can be transplanted in loose and breathable soil, and an appropriate amount of rooting powder can be added to the soil, which can promote the root of orchid flowers, and reasonable maintenance is required in the later stage.

During the growth period of orchids, if the root system is rotten due to improper maintenance, the root system needs to be pruned. When the temperature is right and the weather is clear, remove the orchids from the old pots. After the orchid is depotted, the soil at the roots needs to be removed and cleaned, and after washing, proper pruning can be carried out to cut off both rotten and worn-root roots.

After cutting off the rotten roots, the roots of the orchid can be soaked in carbendazim solution for 10 to 20 minutes. After soaking, it can be taken out and placed in a cool and ventilated place to dry, and can be replanted later. During the curing period, you can choose a loose, fertile, breathable and well-drained nutrient soil, and disinfect the soil and new pots in advance.

After disinfecting the pots, you can put the soil in the pots, pour in the appropriate amount of rooting powder, and stir it well. Once the soil is loaded, the dried orchids can be transplanted into new potting soil. After transplanting, the orchid needs to be watered in an appropriate amount, which is conducive to the root system to adapt to the new soil, and the orchid can be placed in a cool and ventilated position for maintenance after watering.

During the maintenance period, it should be noted that the root system of the orchid has not yet adapted to the new soil, and the amount of watering needs to be controlled. During the curing period, the soil needs to be kept moist and protected from direct sunlight. After the orchid adapts to the new soil and grows new roots, it can be given sufficient light, appropriate water and fertilizer to promote the growth of the orchid.

Orchid rotten root remedy:

1. Prune the root system

Dig the orchid out of the soil, knock off the soil on the roots, then gently rinse the roots with clean water, cut off the dead roots and rotten roots with sharp scissors, and then disinfect the roots of the plant with potassium permanganate solution or carbendazim to remove the remaining germs on it to avoid reinfection.

2. Ventilation and drying roots:

After cleaning, it should not be directly potted for maintenance, but should be placed in a cool and ventilated natural drying root, and the wound should be dried until the time when the curls begin. The main purpose of this is to make the root system of the orchid lose some of the water, make it easier to serve the pot, and also improve the recovery speed of the wound to a certain extent, making it easier to save life.

3. Potting maintenance:

The most important point in remediating after an orchid has rotted roots is to replace the soil. It is best not to use the original soil, but to use bark, ceramsite or phytolites to make a simple cultivation soil to ensure a certain degree of soil permeability and drainage, which is conducive to the recovery of plants after potting. Plant the orchid in the soil and store it in semi-shade to avoid direct sunlight.

4. Done. Just pay attention to daily cultivation.

It is very important not to fertilize the orchid before it has been potted, as too much fertilization will cause the orchid root system to become more burdensome and difficult to grow. At this time, the vitality of the root system is poor, so it should be allowed to recover on its own, draw nutrients from the soil, and recover slowly, without rushing.

Summary. Empty roots are easier to treat, and new roots will sprout quickly after replanting; If the planting material is the reason, the planting material preparation method should be replaced; The discovery of fertilizer damage can be treated early, and it is basically abandoned if it is found too late.

Empty roots are easier to treat, and generally new roots will sprout quickly after new planting in the heavy digging belt; The reason for the planting material is to replace the preparation method of the quietly dispersed planting material; The discovery of fertilizer damage can be treated early, and it is basically abandoned if it is found too late.

All orchids with rotten roots, so the unsound and healthy root system has lost the meaning of existence, and must be cleaned in time. Otherwise, these stumps will continue to rot in the pot, affecting the growth of new root shoots. When trimming the stumps, prune all the rotten roots (including some that have been left empty).

Don't rush to plant in a pot after trimming, first put the orchid in a cool place to dry overnight, and wait for the orchid root to dry before considering planting. If there are many wounds to be trimmed, be sure to apply carbendazim (do not use the method of soaking in sterilization solution, be sure to remember).