Diseases and their control of banana

Anthracnose of banana

anthrax

The water banana is often harmed by anthracnose, which damages the leaves of the water banana and affects its growth.

Anthracnose is a fungal disease caused by fungi of the order Ascomycota. The pathogen can be spread by rain, and the disease can occur all year round in warm and humid areas. The growing environment of water banana is damp, or the plant is over-fertilized with nitrogen fertilizer, which can easily induce this disease.

Prevention and treatment methods

When the disease is found, the diseased leaves can be cut off and burned.

You can spray the medicine 2-3 times in spring before flowering to prevent diseases. The pesticide can be selected from 600 times diluted 40% polysulfide suspension, 800-1000 times diluted 50% Shibaogong wettable powder, or 500 times diluted 25% carbon talen, sprayed alternately.

Also, be careful not to apply nitrogen fertilizer too much, keep the potting soil slightly moist, and drain it in time after rain.

Banana leaf blight

Leaf blight

Water banana leaf blight is also known as spider orchid leaf scorch disease. Leaf blight mainly harms the leaves, flowers and bulbs of the plant. Spots appear on the leaves and expand, and in severe cases the leaves dry up.

Leaf blight is also a fungal disease that is spread by wind, rain and watering, and occurs from January to November every year.

Prevention and treatment methods

When the leaf blight of the water banana occurs, cut off the diseased and dead leaves in time.

Spray 1000 times diluted 50% fungicide regia water-soluble powder or 500 times diluted 40% thiophanate-methyl suspension, or 600 times diluted 30% cupric oxychloride suspension, once every 7 to 15 days.

Brown spot disease of water banana

Brown spot

When brown spot disease breaks out on banana, it mainly harms the leaves. If the rainfall is heavy, the damage will be more serious.

Brown spot is also a disease caused by fungi.

Prevention and treatment methods

Remove diseased leaves promptly if found. In late autumn, completely remove diseased leaves and burn them in a concentrated area to reduce the source of bacteria.

Spray 800 times diluted 25% benomyl·cyclohexane zinc emulsifiable concentrate or 500 times diluted 75% mancozeb wettable powder for prevention and control, once every 10 days or so, and continue prevention and control for 3 to 4 times.