Common pests of dragon blood tree and their control methods

Red Spider

Symptoms

Due to the dry environment, if the dragon blood tree is placed on a balcony or indoor windowsill for a long time, it is easy for red spider mites to grow. Red spider mites, commonly known as fire dragons, are mite pests that often gather on the back of plant leaves, build webs as shelter, and suck sap.

When dragon blood trees are attacked by red spider mites, their leaves fade and their chlorophyll is destroyed. Dense small yellow spots and yellow spots appear on the surface, and they gradually shrink, turn yellow, and wither. In severe cases, they fall off and lose their ornamental value.

Prevention and treatment methods

Red spider mites often hide on the back of branches, leaves or in densely foliaged areas. They can be concealed by nets and easily captured manually.

If chemical agents are used for treatment, you can use 20% trichloronate emulsion, add 800-1000 times water, make a solution for spraying. This drug has a good killing effect on adults, nymphs and eggs. You can also add 1000-1500 times the amount of DDT emulsion into water to make a solution for spraying.

When spraying the medicine, pay attention to spraying the back of the leaves as well, so that the killing effect will be better.

Scale insects

Symptoms

The damage is widespread. It sucks the juice from stems and leaves, causing poor plant growth and even inducing sooty mold, which causes large-scale damage to the leaves. Its peak period is earlier than that of red spider mites, and it often reproduces in large numbers in early spring.

Prevention and treatment methods

When the number is small, you can use a brush to remove it. In addition, you can also use 800-1000 times diluted Supusha for spraying. Mixing a certain amount of furadan into the culture soil has a preventive effect, but the efficacy is only three months.

Whether it is red spider mites or scale insects, they are both very annoying pests. During daily maintenance, you must check regularly. If you find spider silk and white powder, you must check in time whether there are insects on the front and back of the leaves. Early pests are easy to control.