What's wrong with the black spots on the orchid leaves?

The black spot on the leaves of orchids is anthracnose. Diseased branches need to be cut off and burned. Can spray and dispose of bacteria. Plants can also be taken out of the basin and soaked in Tobin solution. Plant after disinfection, pour water and place in a cool place. Spray every few days to prevent recurrence. Anthrax is mainly caused by environmental problems and usually requires attention to ventilation and moisture reduction.

First of all, what is it?

Orchids have black spots on their leaves, usually caused by anthrax. The disease initially produces black spots on the leaves, which are small at first and then gradually expand, eventually causing the leaves to dry up. As one of the common diseases, in addition to treatment, there is also a need for certain prevention and treatment.

How to treat it?

1. Prune sick leaves: cut off all orchid leaves with black spots. Since anthrax spreads easily, it is important to avoid the presence of diseased leaves. Cut off diseased leaves should not be thrown away casually, it is best to burn them collectively, so that they can be effectively disinfected.

2, drug sterilization: in addition to the leaves will have bacteria, breeding orchids may also have bacterial residues. Need to be sprayed, such as pasteurization. If the situation is serious, the plant needs to be removed and soaked in Tobrazin solution.

3, replanting and maintenance: aseptic orchids can be replanted in new potted soil to avoid continued infection of bacteria. After replanting, pour in the water and place it in a cool and ventilated place. Do not spray water for a short time, which is not conducive to wound healing. After spraying disinfectant every few days, it can be completely solidified in about 20 days.

4, follow-up prevention: orchid anthrax is mostly caused by bad environment. Need to strengthen the ventilation environment, avoid air circulation, but also appropriately reduce humidity, air humidity is the key to the breeding of bacteria, you can put a little desiccant indoors to reduce moisture.