Complete list of diseases and pests of Chlorophytum comosum and their control methods

Diseases of Chlorophytum comosum: Brown spot disease

symptom:

In the early stage of infection, several yellow-green spots will appear on the leaf surface, and brown or black spots will form as they gradually grow larger.

Prevention and treatment methods:

Spray Bordeaux mixture 1-2 times a month. The number of sprayings depends on the severity of the disease. If the disease is very serious, spray three times a month. In addition, severely infected leaves should be cut off and burned or buried deep to prevent more leaves from being infected.

Chlorophytum disease 2: root rot

symptom:

It only attacks the roots, causing them to turn black and rot, and slows down the growth rate. Severe attacks may cause the death of the entire plant.

Prevention and treatment methods:

Before dividing and planting, carefully check whether there are diseased roots. If there are, they must be cut off and burned in time before planting. When planting, sprinkle some sulfur powder in the planting hole.

Common pests of Chlorophytum comosum: Cotton scale insects

Prevention and treatment methods:

1. Spray with omethoate emulsion aqueous solution,

2. Apply lime sulfur to the lower part of branches in winter or early spring.

Reasons why the leaves of Chlorophytum comosum turn yellow:

1.Natural growth metabolism.

2. Direct sunlight or no light for a long time.

3. Too much water accumulation and poor air permeability.

4. Excessive or insufficient fertilization.

Reasons why Chlorophytum comosum does not bloom:

Watering too often and in too large an amount. Since the potassium fertilizer needed by plants is insoluble in water, while the nitrogen and phosphorus elements required for stem and leaf growth are soluble in water, the plants cannot bloom and bear fruit normally.