The latest control methods of potato mosaic disease

Potato mosaic disease is a common disease in the process of potato planting. When it is serious, it will lead to a large reduction of potato production and cause huge economic losses to farmers, so it is urgent to prevent and control the mosaic disease. So how to prevent and cure mosaic disease? Let's take a look.

1. The cause of disease

As the name implies, mosaic disease is a disease that harms the leaves. Generally speaking, after the potato is infected, its leaves will wrinkle slightly and the edges of the leaves will be wavy, which is a bit like starting to be scalded. In the later stage of the disease, the whole infected plant will bend to the outside, the leaves will be divergent and shiny, and some parts of the leaves will fade slightly, and these chlorotic spots appear alternately, so they are named mosaic disease. Mosaic disease is caused by virus infection in most seed stems, but there is no difference between virus seed stems and normal seed stems, so the disease is more common.

2. Symptoms

According to its appearance symptoms, mosaic can be divided into common mosaic disease, streak mosaic disease, and compound mosaic disease. When common mosaic disease occurs, the leaf shrinks and shrinks, and the leaf appears green and yellowish mottled along the leaf vein; stripe mosaic disease, also known as heavy mosaic disease, represents that the leaf will have mottled mosaic or withered spots, and vein necrosis in the later stage, and in severe cases, brown stripes will also appear in the stem and withered and necrotic leaves. Compound mosaic disease is a mixed infection of common mosaic disease and stripe mosaic disease, when the disease occurs, the plant will shrink, the leaf becomes smaller, the leaf bends downward, the plant is short, generally does not bloom, dies in the early stage, and the tuber is less.

3. Prevention and control methods

For the prevention and treatment of mosaic disease, it is necessary to understand its mode of transmission and characteristics in order to hit the nail on the head. First of all, excellent virus-free varieties should be selected when planting, which can greatly reduce the probability of infection when it is suitable for sowing and avoid high temperature as far as possible. At the same time, to control aphids, the disease is mainly sown through aphids, so once aphids appear, drug control must be carried out as soon as possible, cut its route of transmission, but aphid lice net or aphid pine mixed with water spray control, the effect is better.

The above is an introduction to the prevention and control of potato mosaic disease. I hope it can help you. If you want to know more about it, please follow us.