Skillful treatment of black spot of orchid

Orchid is a kind of plant that "watching leaves is better than watching flowers". When orchids are infected with black spot, the best cure is to remove their diseased leaves, but this will reduce the ornamental value and economic value of orchids (especially precious varieties). The following three methods can effectively cure orchid black spot without removing diseased leaves.

After the gentian purple method finds that the orchid is suffering from black spot, you should immediately use gentian purple to remove the affected area (the application area is slightly more than the disease spot). The plaque is no longer enlarged and can be cured within a few days, so that the leaves can be preserved. if you do not use gentian purple and use potassium permanganate saturated solution is also effective.

Spraying vinegar on the leaves of flowers can eliminate black spot, powdery mildew and leaf spot, as well as yellow disease of camellias and rhododendrons.

Leek method to soak leek leaves in clear water for 24 hours, generally the proportion of leek with water is 1:10. Watering flowers with pickled leek can prevent black spot and powdery mildew, and reduce the disease of infected flowers. Spraying water from pickled leeks on the leaves of diseased flowers can also cure the disease.