How to deal with the long black spots of crab claw orchid? What to do if crab claw orchid grows worm

The black spots are likely to be root rot on the plant, so the soil should be dug out in time to check and cut off the moldy and rotten places. The soil is then placed in a ventilated place to dry and replanted.

When this situation occurs in the plant, the most important thing is to change the planting environment, reduce the illumination of the plant, strengthen the ventilation of the plant growth environment, and reduce the humidity of the growth environment.

Be careful not to let the plants be exposed to the rain for a long time, and do not expose the plants to strong sunlight or sun exposure after the rain. Leaves with severe black spots can be removed as soon as possible.

The black spots are relatively slight and the leaves can be left alone, as long as the ventilation is strengthened to allow the plant to grow for a period of time, the black spots will naturally fall off and heal.

Most of these diseases are due to an unadapted growing environment, including light, humidity, temperature, and ventilation. It is not much directly related to the soil in which the plant is cultivated, watering, fertilizing. It is necessary to change the environment in which plants are placed and grow, reduce the light exposure of plants, strengthen the ventilation of plant growth environments, and reduce the humidity of growing environments.

Be careful not to let the plants get wet for a long time, and do not let the plants be exposed to strong light or sun exposure after wetting.

Change the growth environment of crab claw orchid, reduce the light level, strengthen the ventilation of the environment for plant growth, reduce the environmental humidity, and do not let the crab claw orchid accept strong light, exposure to the sun, and rain.

Crab claw orchid worms, to stop watering immediately, and then transfer the plant to a cool and ventilated environment for maintenance, and use insecticides to kill crab claw orchid, in the use of dilution according to the instructions of the agent, the configured insecticide to the location of the insect pest repeatedly sprayed, spraying according to the effect of timely insecticide.

1. Kill insects in time

After finding that the crab claw orchid plant has insects to kill insects in time, you can use 800 times the liquid of zeb zinc to spray the insects, pay attention to the agent to spray evenly when killing insects, to ensure that the branches of the plant are in contact with the agent, pay attention to the ventilation of the environment after spraying, promote the effect of the agent and the air, and improve the efficacy.

2. Early prevention

Before the plant enters the growth period, it can be sprayed with an appropriate amount of fungicide for insecticide to ensure that the growth environment is clean and hygienic, and has a good ventilation effect, which can effectively reduce the risk of infection with pests and diseases of crab claw orchid, and can also promote the growth of plants.

3. Post-maintenance

After the crab claw orchid has insects, it is necessary to cut off the diseased branches and dead leaves with serious insect pests in time to avoid the spread of bacteria and threaten the growth and development of the entire crab claw orchid.

4. Daily maintenance

Breeding crab claw orchid to ensure that the plant growth receives enough light, sunlight can not only supplement the nutrients needed for the growth of crab claw orchid, but also can effectively sterilize, reduce the risk of infection with pests and diseases, in addition to watering pay attention not to water directly from the top, the flowers and leaves are easy to breed bacteria, affecting the growth of crab claw orchid.

(1) There is a kind of insect called "scale worm". It is a common pest, and they have a waxy layer on their body that ordinary agents cannot penetrate. Therefore, it is more harmful, and the leaves may grow white spots after the flowers are eaten by it.

2) Control method: First of all, we need to adjust the method according to the number of bugs. If the quantity is small, you can brush them off with a brush or scrape them off with bamboo chips.

It can also be glued off with adhesive tape, which is relatively simple and easy to operate. Then, rinse the plants with water.

If there are a lot of bugs, then we need to spray them. In general, we can use malathion EC. When spraying, you need to be careful to spray the front and back of the leaves evenly, as this bug may also be present on the back of the leaves.

Then be aware of the surrounding environmental conditions. Don't forget to ventilate, but also give light in time to improve its disease resistance. Also, if one tree is already infected, be careful not to let other flowers get close to it to avoid pests migrating to other flowers.

1) Cause: It is susceptible to a disease called "powdery mildew". At the beginning of the disease, small spots appear on the leaves of the plant. Then, the spots are joined together and they take on a white powdery appearance. In general, the lower leaves are more frequent.

2) Prevention and control methods: First of all, it is to dispose of the diseased leaves. Then, we can spray some powdered rust liquid. In addition, we need to pay attention to the amount of watering and not too much. Also, don't splash the leaves when watering.

1. Pruning: After the roots of the crab claw orchid rot, it is necessary to cut off all the rotten roots, and then spray carbendazim on the fracture for disinfection. 2. Soil exchange:

Replant crab claw orchid in loose, breathable and well-drained soil. 3. Water and fertilizer: Crab claw orchid should be watered every 10-15 days during the growth period, and thin fertilizer should be applied once a month.

1. Pruning and disinfection

After the roots of the crab claw orchid rot, the plant needs to be dug out of the soil, and then all the rotten roots are cut off to avoid the spread of the rotten parts, and then the roots of the plant need to be disinfected with carbendazim and other disinfection solutions, and finally placed in a ventilated place to dry the water on the surface of the plant.

2. Replace the soil with new soil

The root rot of crab claw orchid may be caused by soil discomfort, it has certain requirements for soil, and it is most suitable for growing in weak acidic sandy soil that is loose and breathable, well-drained and rich in organic matter, so after treating the root system, it needs to be replaced with new soil, and it should be noted that the soil needs to be disinfected before use.

3. Reasonable water and fertilizer

The root rot of crab claw orchid may be caused by improper water and fertilizer, so in the process of maintenance, it is necessary to apply water and fertilizer reasonably to keep the soil moist but there is no stagnant water to produce the best, and it should strictly control the water during its dormant period. When fertilizing it, it is necessary to grasp the principle of thin fertilizer and frequent application, and must not apply raw fertilizer or thick fertilizer.

Hello, first remove the crab claw orchid from the pot, remove the rotten part of the root, and then put the crab claw orchid in a ventilated place, re-implant it in a pot filled with yellow sand after two days, put it in a ventilated place and will not rain it, and then ask for watering after five days, generally ten days later, you will find that the crab claw orchid has grown new roots. The original only pure soil is recommended not to use, the new soil can be added to the bactericidal drug stirring if the rotten roots are serious, you can also use cactus or triangular arrow grafting, you can separate it from the soil, the rotten part with a sterilized knife to cut off, and then remove most of the branches and leaves, and put it in a cool place to dry for about two days, and then plant in the sterilized river sand to cultivate new roots, pay attention to control watering, because the water holding capacity of the river sand is better, even if the surface is dry, the following is still wet. It is best to place in a semi-shaded and slightly ventilated place to facilitate recovery.