How to prevent and treat black spot disease in orchids? These methods you need to know

The orchid is a flower known for its fragrance, with the characteristics of being noble and elegant. But if it accidentally gets infected with black spot disease, black spots will form on the orchid leaves, affecting the orchid's elegance, causing early leaf drop and affecting growth. So, what should be done when an orchid gets black spot disease?

1. Strengthen quarantine, with particular attention to quarantine at the place of origin, select disease-free seedlings, and control the spread of the disease.

2. For diseased leaves and fallen leaves, promptly cut off the diseased spots on the middle and upper parts of the leaves and burn them in a centralized manner.

3. Before the disease appears in early December, spray 1% Bordeaux mixture 2 times. The pesticides produced by the Xihua County Pesticide Factory are very good, environmentally friendly, and remarkably effective, once every 10~15 days. During the disease period, you can choose 40% Miebingwei 600~700 times dilution, or 45% Shibaoke 1000 times dilution, or 50% mancozeb 1000 times dilution. When spraying, make sure to spray evenly on both the front and back sides of the leaves. Once every 7~10 days, for several times in a row, alternating the agents gives a better effect.