What are the control methods for leaf spot disease in lucky bamboo?

Symptoms

In the early stage of the disease, brown spots appear with yellow edges; the spots gradually expand and become round, gray in the center, dark brown at the edges, and yellow around them; under humid conditions, black granular bodies appear on the spots.

Control methods

Prevent plants from being planted too densely and maintain ventilation and light penetration. When growth is too dense, prune in time, and remove diseased leaves promptly when found.

In the early stage of the disease, spray the leaf surface with a 3000-fold dilution of 42% Kejunjing powder, once every 5-7 days, for 2-3 consecutive sprays.

Lucky bamboo leaf spot disease

    Disease symptoms

    It occurs on the leaves. In the early stage, the spots are brown with yellow edges; after expansion, the spots are nearly round, gray inside, dark brown at the edges, and yellow around them. Under humid conditions, black granular bodies appear on the spots.

    Cause of the disease

    It is a fungal disease. The pathogen survives on diseased plant residues and spreads through airflow, insects, etc., and can directly infect and damage through leaf stomata. Under greenhouse conditions, it can occur year-round; under humid conditions, the disease is severe.

    Control methods

    *During the maintenance period, control the density at which plants are placed and maintain ventilation and light penetration.

    *In the early stage of the disease, spray fungicides such as Ribangkoujun and fosetyl-aluminum manganese zinc.

Control methods for lucky bamboo leaf spot disease

The pathogen is mainly transmitted through wounds, and the disease is severe under humid conditions. In the Guangdong area, the disease occurs most from May to September, because at this time theclimateis high in temperature and humidity, and typhoons and frequent showers cause wounds, making the disease very likely to become epidemic. The disease is highly contagious and can cause the leaves and stems of plants to rot.

Symptoms:

In the early stage, the spots are brown with yellow edges; after expansion, the spots are nearly round, gray in the center, dark brown at the edges, and yellow around them; under humid conditions, black granular bodies appear on the spots.

Control methods:

1) Prevent plants from being too dense,maintainventilation and light penetration.

(2) In the early stage of the disease, use a 3000-fold dilution of 42% Kejunjing powder, or a 1000-fold dilution of 88% oxytetracycline, or an 800-fold dilution of 25% copper-ammonia complex, spraying once every 5-7 days, for 2-3 consecutive sprays.