Disease control of aloe

Rust

Rust is one of the most common diseases of aloe vera, and it often occurs in the summer when the temperature is high and the humidity is high. The pathogen is spread through spores and overwinters with the diseased plants on the surface of the soil. The spores grow under the epidermis and turn dark brown when they rupture.

Prevention and treatment methods

It requires careful care and observation. If disease occurs, remove the diseased and damaged leaves of aloe vera in time and burn them.

Brown spot

In the early stages of aloe brown spot disease, many dark green water-soaked spots will appear on the leaves, and as the disease progresses, the spots will gradually expand and become round. In the later stage of the disease, many black particles will appear on the lesions. The more severe the disease is, the more particles there are, and in severe cases it can cause the entire pot of aloe to rot.

Prevention and treatment methods

1. Plant disease-resistant varieties.

2. Strengthen the management and care of potted plants, pay attention to appropriate room temperature, maintain ventilation, and apply fertilizer evenly.

3. Pay more attention to the potted plants. If you find diseased leaves, remove them immediately and destroy them.

4. When disease occurs, spray 1000 times liquid of 75% thiophanate-methyl powder. Spray once every 2-3 weeks, and 3-4 times within a year.

Leaf blight

Leaf blight mostly occurs in the southern region and is spread through water or insects. The symptoms include small dark brown spots on the tip of the leaves, which gradually expand and dry up. The spots shrink and later form small black spots in an array.

Prevention and treatment methods

1. Pay attention to observation and prevent the spread of diseases

2. When planting, choose varieties with strong disease resistance, such as Chinese aloe, Curacao, etc.

3. Aloe vera is not cold-resistant, so pay attention to the combination of fertilizer and water to enhance its disease resistance.

4. Use potted plant pesticides for prevention and control (600 times solution of 75% thiophanate-methyl wettable powder).