Control methods of common diseases and insect pests of Rhizoma Polygonatum

Rhizoma Polygonatum, also known as chicken head Polygonatum, yellow chicken vegetable, is a relatively common Chinese herbal medicine, which has the effect of tonifying the spleen, moistening the lung and promoting fluid, and is widely used in traditional Chinese medicine. But the wild can not meet its market demand, so artificial cultivation of Polygonatum polygonatum is on the rise, it brings higher economic benefits to many drug farmers, but it is vulnerable to diseases and insect pests when it is planted, let's take a look at the prevention and control methods of common diseases and insect pests.

1. Rhizoma Polygonatum black spot

Black spot is one of the main diseases of Polygonatum polygonatum in planting. It is a fungal disease, which mainly harms leaves. Its pathogen can survive the winter on soil and disease remains, and invade infection when the temperature rises. In the early stage of the disease, the leaf tip began to appear yellow-brown irregular disease spot, the edge of the disease spot is purplish red, with the development of the disease, the disease spot continues to spread, and finally the whole leaf withered, the disease is more serious in the rainy season.

Prevention and control methods: clean the field during overwintering, burn the remains centrally, and then deeply turn the soil over and disinfect the soil to reduce the pathogen. 1000 times of the solution can be sprayed before or at the initial stage of the disease, once a week, 2-3 times in a row.

2. Polygonatum leaf spot

Similar to black spot, it is also a fungal disease, and it mainly harms the leaves. When the disease starts from the base, the leaves begin to fade spots. With the large discoloration area, the disease spots gradually expand, and oval or irregular spots appear. The middle of the disease spot is pale, the edge is brown, and there is yellow halo in contact with the undiseased tissue. When the disease is serious, the combination of multiple disease spots leads to the beginning of the leaves, and finally leads to the withering and shedding of the leaves of the whole plant.

Prevention and treatment: its control method is the same as that of black spot.

3. Anthrax

Anthracnose is a common disease in many plants, which mainly harms leaves and fruits. After Polygonatum infection, disease spots begin to appear at the tip and edge of leaves, and begin to show reddish brown. With the development of the disease, the disease spots expand, and the color also changes to dark brown. The disease spot area will often perforate and fall off, causing great harm. When the disease is serious, all the leaves of the whole plant will rot and die.

Control method: it is also a fungal disease, and the prevention method is similar to the former two, which can be sprayed with 1000 times liquid carbendazim.

4. Insect pests

The main pests of Polygonatum polygonatum are ground tigers, grubs and planthoppers, among which ground tigers and grubs mainly harm the seedlings of Polygonatum. They will gnaw on the young roots of young stems, which are also known as Polygonatum, affecting the growth of seedlings or leading to the death of seedlings. When it comes to summer, it is a period of rapid environmental growth, when flying lice will harm the flowers and fruits of Polygonatum, affect the seed setting rate and reduce the yield.

Prevention and control methods: pest control can be a combination of agricultural control and chemical control, agricultural control is mainly to eliminate overwintering adults or eggs, reduce insect pests from the source, or use natural enemies to control pests in the outbreak period, less pollution to the environment. On the other hand, the agent is a professional insecticide, which does some harm to Polygonatum polygonatum itself. we should pay attention to the dose and concentration of the agent.

The above are the common pest control methods that the pro-agricultural network brings Polygonatum. I hope it can help you. If you want to know more about the planting of medicinal materials, please pay attention to the pro-agricultural network.