Control techniques of Diseases and insect pests of Camellia oleifera

Camellia oleifera is a major oil crop with high market value. In recent years, its planting scale is getting larger and larger, but it is also easy to produce diseases and insect pests, which seriously affects the yield of rape. Therefore, in order to achieve high yield, we must first do a good job in the prevention and control of diseases and insect pests. The following editor brings you the control techniques of common rape diseases and insect pests.

1. Anthrax

The main harmful parts are fruits, branches and leaves and tree trunks. Reddish-brown spots appear on fruits and branches and leaves during the disease, which will gradually spread into large light brown spots, and dark-brown spots will appear on the disease spots in the later stage, resulting in fruit cracking, leaves and fruits falling off a large number, branches and leaves withered, tree trunks fester, and in serious cases, the whole plant withered to death.

Control methods: the varieties with strong disease resistance should be selected when planting, and the management should be strengthened to enhance the tree potential and improve the disease resistance of the plant. Bordeaux liquid can be sprayed in the seedling stage to prevent, and carbendazim can be sprayed when the disease occurs.

2. Soft rot

Soft rot mainly harms fruit and leaf buds, which will cause a large number of fallen leaves and fruits, and in serious cases, the shoot will die and the growth node of the plant will be destroyed. The occurrence of the disease is generally related to the temperature and humidity of the environment, its bacteria will spread with the help of wind and rain, generally in summer and autumn is a high incidence period.

Prevention and control methods: strengthen forest management, improve ventilation and light transmission in the field, give priority to prevention, spray Bordeaux liquid regularly, and use carbendazim and topiramate to control the disease.

3. Root rot

Root rot mainly harms the root system of the plant, generally but in April-May or 9-10 hare, the disease first infects the rhizome, brown disease spots appear in the diseased part, and white hairs grow in the later stage, resulting in root rot, leaf withering and shedding, and finally the plant dies. The disease is more serious in the land with heavy soil viscosity and poor drainage.

Control methods: after the disease, the diseased plants should be cleaned up in time, pulled out and taken out of the field, at the same time, the disease should be spread with lime powder, and the disease should be irrigated with carbendazim and carbendazim.

4. Insect pests

The pests of Camellia oleifera include Lepidoptera and Coleoptera leaf-eating pests, they will gather in the leaves of Camellia oleifera, gnawing on the leaves, once the pest breaks out, it will eat the leaves of the plant in a short time, causing great harm.

Control methods: Bacillus thuringiensis or Beauveria bassiana can be used for biological control, and trichlorfon and phoxim EC can be used to control larvae.

The above is the introduction of Camellia oleifera pest control technology, hope to help you, want to know more related knowledge, please pay attention to us.