The latest prevention and control of tomato virus disease

In the family planting in rural areas of our country, tomatoes are certainly not rare, and there are large-scale cultivation in all parts of our country. But no matter how large the growers are, there will still be all kinds of diseases if they are not prevented in place in the process of growing tomatoes. Among them, virus disease is a kind of virus disease, the incidence and spread of virus disease is very fast, and it is difficult to prevent and cure, which is a headache for many people. So how to prevent and cure the virus disease of tomato? Let's take a look at it with the editor.

1. Select superior species

It is very important to select good seeds and varieties with strong disease resistance. there are no good varieties with strong disease resistance in our country, so we can use foreign varieties with disease resistance. Therefore, when selecting seeds, we must check them strictly and carefully, and try not to use seeds that are not sure whether there is a disease or not. Or soak and disinfect the seeds before planting to eliminate the bacteria lurking in the seeds and reduce the occurrence of viruses due to the seeds. When planting soil, the former crop is not Cruciferae and Solanaceae and other crops, but also can effectively reduce the incidence of virus disease.

2. Water and fertilizer management

In order to meet the sufficient nutrients needed for the growth of tomatoes, not only the base fertilizer should be fully applied before planting, but also the proper topdressing should be carried out according to the growth of the plant. Attention should not be paid to the partial application of nitrogen fertilizer, nitrogen fertilizer should be applied in conjunction with phosphorus and potassium fertilizer, and attention should be paid to the supplement of trace elements. Partial application of nitrogen fertilizer will make the plant overgrowth, malnutrition, reduce resistance and increase the risk of disease. Watering should always keep the soil in a moist state, but there should not be too much stagnant water in the vegetable garden. The principle of applying more and less water should not only make the plant grow healthily, but also effectively reduce the incidence of disease.

3. Pest control

The main way of transmission of virus diseases is aphids and other pests, so we need to prevent aphids in the process of prevention and control of virus diseases. If you want to get effective pest control, you must do a good job in the prevention work in the early stage of the plant. Strengthen the management of the vegetable garden, clean up the garden in time after the first harvest, and reduce the existence of insect eggs. Reasonable use of medicine according to the actual situation of the vegetable garden can also release the natural enemies of some pests in the vegetable garden without endangering the elimination of beneficial insects in tomatoes.

4. Drug prevention and treatment

The incidence of virus disease is very fast, and there is no particularly effective drug for the prevention and treatment of virus disease in our country, so it leads to the difficulty of virus disease management, rapid epidemic, unable to effectively prevent and cure virus disease and so on. However, if it is found that virus inhibitors can be used in time to inhibit the spread of bacteria and reduce the incidence of diseases, so that there is time to deal with the diseased plants, the diseased plants should be pulled out of the vegetable garden in time and burned. Keqiyin, omnipotent zinc and medical ribavirin can be used for proper spraying.

The above are several methods to prevent and control tomato virus disease, after the onset of the virus disease is extremely difficult to control, and the spread speed is very fast, difficult to control. Therefore, we can only do a good job of prevention in the early stage of planting, when we encounter diseased plants, we should immediately remove the vegetable garden to prevent the spread and expand the scope of the disease. Today's article is introduced here, this article is for reference only, I hope it will be helpful to you.