The latest control methods of burdock diseases and insect pests

Burdock is a biennial or triennial herb of Compositae. It is not only a vegetable, but also a kind of medicine with high edible and medicinal value. At present, it has been planted in many areas of our country. After years of development, its planting area of wild ginger is considerable, but it will suffer from diseases and insect pests when planting, which will affect the yield and quality of burdock. So how to control the diseases and insect pests of burdock? Let's take a look.

1. Black spot

Black spot mainly harms the leaves and stems of burdock. When the disease occurs, there are many small disease spots on the leaves, and many disease spots will merge together and cause the leaves to wither. When the humidity is high, the disease spot is rusty brown, and a black mildew layer will grow on the disease spot. When the stem is infected, there is an oval disease spot, with the development of the disease, the disease spot is sunken, blackened and moldy, and finally leads to the lodging of the whole plant.

Prevention and treatment methods: the diseased leaves of diseased plants should be removed in time, and the diseased remains should be removed in harvest, and the disease will be buried deeply when it is centrally burned. when the disease occurs, it can be sprayed with chlorothalonil, carbendazim and other agents for control.

2. Powdery mildew

Mainly harms the burdock leaf, the damaged leaf will appear the uneven distribution white powder spot, the later stage powder spot will merge together, the leaf surface will cover a large number of display, until the leaf withered and yellowed. In the warm and humid environment, the outbreak of the disease is more serious, in addition, the lack of soil fertility or partial application of nitrogen fertilizer will also induce the disease.

Control methods: strengthen field management, increase the application of base fertilizer, pay attention to the reasonable collocation of nitrogen, phosphorus and potassium, avoid partial application of nitrogen fertilizer, and increase plant disease resistance. In the rainy season to timely drainage, reduce humidity, can also be triadimefon, Wuyimyimycin spray prevention and control.

3. Angular spot disease

The main harm to plant leaves, the leaves appear water-like disease spots, the initial stage is light brown, polygonal, it is best to lead to leaf perforation and death. Can also be stem infection, stem infection is also waterlogged at the initial stage, longitudinal expansion along the stem, early serious cause ulcers or cracks, brown and dry.

Prevention and treatment methods: in the early onset, copper succinate, Ruidu copper, ethyl phosphate aluminum and other agents can be used to control the disease, and the effect is better.

4. Insect pests

The pests of burdock include golden needles, aphids and grubs, which are harmful to larvae or adults, sucking plant sap or gnawing on stems, leaves and tubers, affecting the quality and yield of burdock.

Control methods: you can use phoxim EC or dimethoate EC to mix bran, sprinkle it in the field in the evening, or directly spray phoxim EC, dimethoate EC, trichlorfon and other agents, but pay attention to the use of agents in turn to avoid drug resistance.

The above are the prevention and control methods of burdock diseases and insect pests, hope to help you, want to know more related knowledge, please follow us.