Detailed Explanation of the Key Points of Scutellaria baicalensis Pest and Disease Control Techniques
Scutellaria baicalensis (Baikal skullcap) is one of the herbs commonly used in medicine, with extremely high medicinal value. As its market demand increases, its planting scale is gradually expanding. However, with changes in the ecological environment, its pests and diseases are becoming more and more serious, severely affecting the yield and quality of Scutellaria baicalensis, and have become a major factor hindering its production. Let's take a look below at the pest and disease control techniques for Scutellaria baicalensis.
1. Leaf blight
It generally occurs in early June. When the disease strikes, irregular brown lesions appear from the veins or leaf margins, gradually extending inward until they spread into patches, causing the leaves to gradually dry up and die. In severe cases, it causes the leaves to fall off, and the plant to wither and die. This disease is more severe under high temperature and rainy conditions. If not controlled in time, the pathogen will spread across the entire field in a short period, causing great harm.
Control techniques: Choose plots with higher terrain and good drainage for planting. Plough the soil before planting to reduce overwintering sources of the disease. When the disease occurs, promptly pull out diseased plants, take them out of the field and burn them, and spray Bordeaux mixture or carbendazim solution comprehensively for control, which gives better results.
2. Root rot
When root rot occurs, dark brown lesions appear on the rhizome, gradually spreading to the main root. Over time, the root system gradually declines, and the plant lodges and dies. This disease is prone to occur in the rainy season, and a humid environment worsens the condition.
Control methods: Strengthen drainage measures during the rainy season to avoid water accumulation in the soil, and enhance ventilation and light penetration. Disinfect the soil before sowing. When the disease occurs, ferrous sulfate solution can be used to irrigate the holes for control.
3. Powdery mildew
Powdery mildew mainly harms the leaves. When the disease occurs, white powdery lesions appear on the leaves, as if covered with a layer of white powder. The lesions gradually spread to the entire leaf, and finally small black particles appear on the lesions.
Control methods: Strengthen field management and pay attention to ventilation and light penetration. When the disease occurs, carbendazim and thiophanate-methyl solutions can be used for control, or powder mildew fungicide can be sprayed, which gives better results.
4. Pests
The main pests of Scutellaria baicalensis include cutworms and moths, which harm the root system and the young and tender parts of the plant, severely affecting the normal growth and development of the plant.
Control methods: Physical control and chemical control can be used in combination. Manual capture can be used to eliminate cutworms, and black light lamps can be used to trap and kill moths. Pesticides such as dimethoate and dichlorvos can also be sprayed for control, but attention must be paid to the concentration of the pesticide to avoid pesticide residues.
The above is an introduction to the pest and disease control techniques for Scutellaria baicalensis. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.