What about the rich bamboo leaves with long spots?

One. Reason:

The cause of this phenomenon is likely to be the infection of pathogenic bacteria. The disease is usually transmitted through wounds, and the disease gets worse in a humid environment. In Guangdong, May to September is the time when the incidence of the disease is the highest, because the climate temperature during this period is relatively high, and the humidity in the air is also very high, and there are typhoons and showers in summer, causing wounds, and then let the disease spread quickly.

Two. signs:

The disease starts with brown spots and causes the edges of the leaves to be yellow. After the infection of the bacteria, its markings will be nearly round, the middle of the leaves will appear gray, and the edges of the leaves will be dark brown. If the environment is too humid, the disease spots on its leaves will also grow black particles.

3. Prevention and treatment:

1. If several bamboos are cultivated and their leaves are luxuriant, it is best to cultivate them separately and not too dense. Put them in a well-ventilated place where there is relatively bright scattered light.

two。 In the early stage of the disease, we can choose to use 3000 times of Ke Ji powder containing 42%, or 1000 times of hydramycin hydrate containing 88%, or 800x of complex ammonia and copper containing 25%. Spray these potions on the sick leaves two or three times a week.

3. If it is already serious, cut off the leaves that have been infected with germs.