Diseases and pests of the Chinese hollyhock tree and their control

Diseases of the tamarisk tree

The main diseases of the tung tree are anthracnose and leaf spot. Both diseases are caused by fungal infection. Generally, there is more rain in the summer, the growth environment of the bachelor tree is relatively humid, the sunlight is insufficient, and the drainage work is insufficient, which can easily cause anthracnose and leaf spot diseases of the bachelor tree. The bachelor tree is more susceptible to diseases in the summer, autumn and when it is relatively young. Anthracnose and leaf spot diseases both harm the leaves and rhizomes of the bachelor tree, causing the leaves and even branches of the bachelor tree to turn yellow and fall off, seriously endangering the growth of the bachelor tree.

Prevention and control methods of tree diseases

Because the disease is caused by fungal infection, the most important method for treating the disease of the bachelor tree is sterilization. When the eucalyptus trees we plant are diseased, we must first clean up the branches and leaves that have fallen due to the disease to prevent the spread of the disease, and then use bactericidal liquids such as carbendazim to spray and kill them. In order to prevent the tree from getting sick, the drainage of the tree should be done well during the rainy season and sufficient sunlight should be given.

Pests of the Bamboo Tree

There are relatively few insect pests on the Chinese bachelor tree, and the insect pests that usually occur on the Chinese bachelor tree are scale insects. Scale insect eggs hide in the bark. Scale insects will suck the sap of the bachelor tree, damaging the tender buds, causing them to curl and deform and unable to grow normally. In severe cases, it can even lead to the death of the bachelor tree.

Prevention and control of insect pests on the Chinese hollyhock tree

When scale insects appear in the bachelor tree, we can use the natural enemies of scale insects to deal with it. We can cultivate some insects such as ladybugs and square-headed beetles. These insects prey on scale insects and can reduce the damage caused by scale insects to the bachelor tree. We can also use pesticides to spray the stick trees to kill scale insects.