How to treat Potato Diseases

Potato is the potato we often eat. It belongs to the annual herb of Solanaceae. It is the fourth most important food crop in the world. Potato is planted widely, mainly in China, Russia, India, Ukraine, the United States and so on. So how to treat the disease in the process of potato planting?

I. treatment of Potato Diseases

The main diseases of potato are late blight, virus disease, ring rot and so on. After the occurrence of potato disease, the type of disease should be determined according to the specific symptoms, targeted measures should be taken to treat it, and drugs should not be used at will.

Potato late blight, commonly known as "fire wind", is an important disease in potato production, which is common in potato producing areas in China. The main symptoms are round or semicircular dark green or dark brown spots on the tip or edge of the leaf, and the edge is not obvious. When the air humidity is high, the disease spot expands rapidly, which can extend to more than half of the leaf or even the whole leaf. The main control method is to spray with 500 times of manganese zinc flumolin powder, 600 times of 50% acetaminophen, 64% alum 400 times of 500 times.

Potato virus disease is also known as potato degeneration disease. It is common in all parts of the country, and the harm is serious. It will cause the plant to be short, deformed and the yield will be reduced. The main manifestations are abnormal development of flowers and leaves, smaller leaves or dark brown necrotic stripes, plant dwarfing and so on. For the time being, there is no effective drug treatment for potato virus disease, generally sowing non-toxic seed potato and improving cultivation measures to prevent it.

Potato ring rot is a bacterial vascular bundle disease, the main symptoms of which are wilting of the aboveground part of the plant and annular rot of the underground part along the tuber vascular bundle. It often causes dead plants and rotten potatoes in the field, which reduces the yield and quality. The storage period can also cause bad cellar. There is no effective chemical treatment for potato ring rot for the time before. generally, disease-resistant varieties are used before planting, disease-free fields are established, and whole potatoes are sown as far as possible.

The above is about the prevention and control of potato diseases. when planting potatoes, the best measure is to select disease-resistant varieties before planting, and strengthen field management to reduce the frequency of diseases.