There are black spots on the leaves of orchids

When the black spots of orchid leaves are caused by many reasons, if the light is too strong, move the plant to a ventilated shade, mainly accept astigmatism during maintenance, stop watering too much, and carry out proper soil change. if the temperature is too high, the flowerpot will be moved into the cool ventilated place, as well as the prevention of diseases and insect pests.

Treatment of black spots on orchid leaves 1. Shading treatment

Orchid is different from other flowers and plants, it does not have high requirements for light, if the plants are often put outdoors to be exposed to the sun during maintenance, it is easy to cause long focal spots on the leaves, then how to cut off the dead leaves at this time? move the flowerpot to the faint light of indoor ventilation, usually mainly to accept astigmatism.

2. Rational watering

Orchids like to grow in moist potted soil, but if they are too much during watering, or if they are drenched from flowers and leaves, it will lead to root rot, leaves will appear a lot of black spots and will gradually wither, so stop watering at this time. After taking out the roots, cut off the rotten roots and wither the roots, pay attention to ventilation after replanting, and usually watering the pot soil is appropriate.

3. Cooling treatment

Orchids are sensitive to changes in temperature. if they grow in an environment with high temperature and poor ventilation, it is easy to breed diseases and insects, and the leaves will gradually turn black and yellow. at this time, the plant should be placed in a cool ventilated place. when the temperature is too high to carry out appropriate water spray cooling treatment, but also pay attention to the best ventilation.

4. Disease and pest prevention

When the leaves of orchids grow a lot of black spots, it is necessary to consider suffering from anthracnose, brown spot, red spiders, aphids and other harms. After the disease, many black patches will appear on the leaves, which will eventually lead to the weakening of the plant growth. At this time, the diseased plants will be cut off in time to keep the leaves dry and sprayed with thin chlorothalonil or omethoate solution.