Diseases of Palm Bamboo and Their Prevention and Control

Anthracnose of bamboo palm

symptom

Anthracnose is one of the important diseases of palm bamboo, which mainly harms the leaves of palm bamboo. When the disease occurs, semicircular or irregular spots will appear on the leaf tips or edges of the bamboo palm, appearing yellowish brown or grayish brown. When the air is too humid, scarlet needle-sized liquid spots will appear on the leaves.

Prevention and treatment methods

Combined with winter and spring pruning, clean up the fallen leaves and weeds on the surface of the potting soil.

In the early stage of the disease, you can regularly spray 600-800 times diluted Guoguang Yintai wettable powder, Guoguang carbendazim, and thiophanate-methyl for prevention. When the disease is mild, use 400-600 times diluted Guoguang Yingna wettable powder or 500-600 times diluted Guoguang Bixin emulsifiable concentrate for foliar spraying for prevention and control. Use it 2-3 times in a row with an interval of 7-10 days.

Diseases of bamboo palm: leaf spot disease

symptom

When leaf spot disease occurs in bamboo palm, small yellow-brown spots will initially appear on the leaves, gradually expanding into striped patterns and merging into irregular necrotic spots. The first parts to be affected are the leaf tips and edges. In severe cases, the leaves will shrink and the plant will die.

Prevention and treatment methods

Strengthen management, do not apply nitrogen fertilizer alone, and increase the application of potassium fertilizer to improve the plant's disease resistance.

In the early stage of the disease, you can spray 300-500 times diluted 50% carbendazim wettable powder once a week for 3 times in a row.

Palm bamboo disease - bud rot

symptom

Bud rot mainly harms young buds and tender leaves. When the disease begins to occur, the unexpanded leaves wither first, turn brown, and then droop. The pathogen spreads from between the young leaves to other parts of the plant, causing the plant to stop growing and slowly rot, emitting a foul odor. The disease mainly occurs in the rainy season, when the temperature is 20℃ to 25℃ and the relative humidity is above 90%. The disease is prone to occur when moisture stays for a long time.

Prevention and treatment methods

Normally, ventilation and light transmission should be strengthened to prevent moisture from remaining on the leaves for a long time.

In the early stage of the disease, only a small number of diseased leaves are infected. The diseased leaves and stems should be removed in time, sprayed with carbendazim for sterilization, and ventilation should be carried out in time.

When the disease is serious, spray 500 times diluted 80% mancozeb wettable powder, or 1:1:100 Bordeaux mixture, and spray the leaves in turn once every 10 days for 3 to 4 times.