Symptom and control of orchid flower blight

A whole flower or inflorescence. The buds are susceptible to infection. The infection is divided into 3 sunken dark brown to black spots. It is often covered with white powder and small pink robes. Severe infection can cause flowers to turn yellow at budding stage. Wither and fall. The method of prevention and control is also. Cut off the diseased flowers. Spray 80% zinc or 80% Manganese wettable agent 400 × 600 every 4 ~ 7 days. You can also spray and irrigate the soil with 50% carbendazim wettable powder 500 times. Note: the above condition can also infect leaves. It is called Fusarium leaf spot. That is, there are small spots. It is more common in injured tissue. (GE Weiwen)