Control of common diseases and insect pests in Eucommia ulmoides

Eucommia ulmoides is a medicinal material with high medicinal value, which occupies a very important position in both ancient medicine and present medicine. Due to the increase in market demand for Eucommia ulmoides, more and more people grow Eucommia ulmoides. However, the incidence and insect damage rate of Eucommia ulmoides is relatively high, so what are the diseases that harm the growth of Eucommia ulmoides? What are the pests? Do you know the prevention and control methods of these diseases and insect pests? Next, let's study with the editor.

1. Root rot

The high incidence period of root rot disease is between June and August, of which the most harmful is the seedling stage, but it also has a great impact on adult Eucommia ulmoides. Root rot is harmful to the root of Eucommia ulmoides, first of all, the lateral root, and then with the deterioration of the disease, spread to the main root, and finally lead to the whole root rot, the whole plant lost vitality and gradually withered. The prevention of root rot is first of all to select the planting site, and then to carry out reasonable water and fertilizer management, timely drainage and irrigation. In the early stage of root rot disease, we can use topiramate, carbendazim and carbendazim to control, dig up and burn the diseased plants, and sterilize the soil.

2. Blight

Standing blight, also known as quenching disease, has the greatest impact on Eucommia ulmoides seedlings, especially in Eucommia ulmoides seedlings propagated through seeds, grafted seedlings generally rarely occur. Standing blight mainly occurs in high temperature and rainy time, which is easy to cause bacterial infection, and then the cotyledons of Eucommia ulmoides seedlings are rotted, resulting in root infection, root rot, Eucommia ulmoides wilt lodging. The control method of Rhizoctonia solani is the same as that of root rot, although it is not the same disease, but they all use carbendazim and other antifungal agents.

3. Angular spot disease

Corner spot mainly harms the leaves of Eucommia ulmoides, whether in seedling or adult, the incidence of this disease is very high. When angular spot disease occurs, brown polygonal spots appear on the leaves, and then black-gray mildew-like substances appear in the long spots. When the disease worsens, the leaves turn black completely and then fall off. When angular spot occurs, we usually use Bordeaux solution to control it, but the most important thing is to strengthen planting management and improve the resistance of Eucommia ulmoides.

4. Beetles

Eucommia ulmoides pest beetle has to be said to be one, and there are many species of beetle, such as brown beetle, copper beetle and so on. However, the beetle mainly harms the seedlings of Eucommia ulmoides, which seriously affects the survival rate of Eucommia ulmoides. Then when we find this pest in the process of planting, we can use phoxim EC to control it.

5. Leopard bark moth

The leopard bark moth is actually the most harmful when it is a larva, so we should control it in time, otherwise it will have a serious impact on the trunk and branches of Eucommia ulmoides. We often see that the hollow trunk is basically caused by this pest and, in severe cases, can lead to plant withering and death. First of all, when we clear the garden in winter, we should clean it up as much as possible, and the second is to control the eggs of leopard bark moth with quicklime, sulfur powder and water. Finally, dichlorvos or other pesticides can be used to block the hole with cotton and destroy them.

The above diseases and insect pests are very common, of course, it also has many other diseases and insect pests, such as leaf blight, gray spot, brown spot, mole cricket, ground tiger, moth, tea wing bugs and so on. If you don't know how to prevent and cure it, remember to leave us a message.