What if the orchid grows black spots?

The long black spot of orchid needs to be moved to a ventilated environment and the temperature should be kept between 15 ℃ ~ 30 ℃. Some loose media can be added to the original soil to increase the loose drainage capacity of the soil, do not appear the phenomenon of stagnant water, and can appropriately increase the irradiation of astigmatism. If damaged by anthrax and thrips, chemicals need to be used for treatment.

The solution of long black spot of orchid 1. Ventilation treatment

In the process of culture, black spots are easy to appear on the leaves when orchids are cultured in a poorly ventilated environment. It is necessary for the aunt to move it to a well-ventilated environment and keep the temperature between 15 ℃ and 30 ℃, which can improve the phenomenon of black spots on leaves.

2. Increase the loose medium

Orchids have higher requirements for the growth environment, if the phenomenon of stagnant water occurs every day, it will affect the normal absorption of nutrients by the leaves, and black spots will be formed gradually. at this time, some loose media can be added to the garden soil. can increase the drainage capacity of the soil, and then reduce the number of watering.

3. Astigmatism irradiation

Orchids like to grow in a semi-shady environment, if they are placed in a dark environment during the growth stage and lack of light for a long time, the leaves of the plant will appear black spots, and some appropriate light is needed at this time. This can improve the phenomenon of black spots in orchids.

4. Medicament smear

If the orchid is attacked by diseases and insect pests, the leaves will also become yellow or blackened, for example, infected with anthrax, thrips and other diseases and insect pests, the nutrients of their plants will be absorbed by them, gradually forming black spots, at this time, the leaves need to be trimmed off half, and then sprayed every other week, can effectively treat black spot.