Diseases and prevention methods of Aspidistra

Diseases of Aspidistra: Anthracnose

Symptoms

Anthracnose of Aspidistra often occurs on the leaf edges or surfaces. The lesions of anthracnose are nearly circular and grayish white or grayish brown. The outer edge is yellowish brown or reddish brown, and small black spots arranged in a wheel appear in the later stage. In addition to the leaves, the petioles and stems can also be infected, producing striped markings. This disease occurs 2 to 3 times a year in the south and less frequently in the north, with a peak incidence each year. Continuous rainfall and hot and humid environment lead to more severe disease.

Prevention and treatment methods

When diseased leaves are found, cut them off and burn them in time to reduce the source of infection.

Take precautions and move the plants to a relatively dry place and keep them ventilated before the rainy season arrives. You can spray 50% Spray-K once every 10 days, and spray continuously 3 to 4 times. If necessary, spray potassium dihydrogen phosphate solution to enhance the plant's resistance to pesticides.

Diseases of Aspidistra: Botrytis cinerea

Symptoms

Gray mold mainly occurs on the edges of leaves, producing water-like spots from the edges of the leaves. When the environmental humidity is high, the spots will gradually expand, and the edges of the leaves will gradually show irregular withering. After continuous rain and cloudy weather, the humidity is high and lasts for a long time, and sparse gray mold may grow. The disease is prone to spread under high humidity and temperature conditions around 20 ℃.

Prevention and treatment methods

Strengthen maintenance. Aspidistra likes moisture, so you can choose a place with a humid and well-ventilated environment for maintenance. The light should not be too strong, otherwise it is easy to get sick.

If sporadic diseased plants are found, spray 65% ​​carbendazim wettable powder in time. If the disease is serious, the diseased plants should be removed in time and sprayed with fungicides to ensure that the remaining plants grow well.

Diseases of Aspidistra: Leaf spot

Symptoms

Also called black spot disease, brown spot disease, etc. In the early stages of the disease, black spots will appear in the middle of the leaves, and the leaves will gradually turn yellow and fall off. This disease is often caused by hot, humid, and windy conditions.

Prevention and treatment methods

Improve the maintenance environment in time, ventilate in time, and lower the ambient temperature.

In the early stages of the disease, the affected leaves can be removed and cleaned. Then spray Bordeaux mixture for prevention and control, spray once every 7 days, 4 to 5 times will be enough.