When it comes to ginseng, the average friend thinks that it is a big supplement, high in medicine, etc. Life is indeed a perennial herb with many medicinal effects, and it is also known as the "Northeast Three Treasures". One. Today, what are the common diseases of ginseng? How to prevent and so on.
First, the ginseng epidemic
Hazard symptoms
The disease mainly affects the leaves, and the base and roots can also be affected. Occurs when the humidity is high in the rainy season from July to August. Plants above 4 years old are particularly ill. The lesions on the leaves are watery and dark green. The roots are infected with yellowish brown soft rot, the root bark is easily peeled off, and the internal tissues are yellow-brown irregular patterns with a stench.
2. Prevention and treatment methods
1 Maintain good ventilation and drainage conditions;
2 increase the application of phosphate fertilizer, potassium fertilizer;
3 The diseased plant was immediately removed and burned, and the diseased cavity was disinfected with 5% lime milk;
4 Before the onset, spray with 1:1:120 Bordeaux mixture or 65% Dyson zinc 500 times solution, once every 7 to 10 days, continuously spray 2~3 times.
Second, ginseng sclerotinia
Hazard symptoms
The ginseng sclerotinia disease must invade the roots of 4 years old, and the buds and the head can also be harmed. The appearance of the roots was not abnormal at the beginning of the disease, but the internal tissues were soft, the finger pressure was brittle, and then gradually grayish black soft rot. The stems and leaves of the diseased plants were slightly shrunk in the early stage, and they died in the late stage. In the spring and autumn, when the temperature is low, the humidity is high, and the soil is poorly ventilated, it is prone to spread.
2. Prevention and treatment methods
1 pay attention to drainage to prevent excessive moisture in the ginseng;
2 The diseased plants were found, excavated with soil, and the diseased points were disinfected with 5% lime milk, and then replaced with disease-free soil;
3 The land with serious disease, excavated the ginseng processed goods or disinfected and planted separately.
Third, ginseng blight
Hazard symptoms
In the ginseng emergence stage of ginseng, the ginseng of the ginseng was heavy, and the stem of the victim ginseng was brown-ringed at the junction of the dry and wet soil under the soil surface, and the seedlings collapsed and died.
2. Prevention and treatment methods
1 Before the sowing, the soil is treated with 50% carbendazim 3 kg per acre;
2 In the early stage of the disease, the ward is watered with 50% carbendazim 1000 times solution;
3 The diseased plants were immediately removed and burned, and the diseased points were disinfected with 5% lime milk;
4 Strengthen field management, maintain ventilation, and avoid excessive soil moisture.
The above are the more common diseases in the ginseng planting process and how to prevent and cure. The drug farmers who need it can refer to it. If you have any other questions about ginseng planting, you can leave a message!
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