The latest prevention and control methods of balsam pear virus disease

Balsam pear is a dish that we often eat in our daily life. it is rich in nutritional value, has the effects of heat-clearing and detoxification, nourishing beauty and tender skin, and has been planted in the north and south of our country. In the process of planting balsam pear, virus disease is one of the very common diseases, which will affect the leaves of balsam pear and even the yield and quality of balsam pear, and bring a certain degree of economic loss to farmers. today, the pro-agricultural network will introduce the prevention and control methods of this balsam pear virus disease.

To understand how to prevent and cure this disease, we must first know the symptoms of the disease. Only when we know the symptoms, can we make a diagnosis of the disease suffering from balsam pear, which is conducive to the therapeutic effect. Let's take a look at it now.

I. harmful symptoms of balsam pear virus disease

The leaves of the plants with early onset of balsam pear virus disease became smaller, wrinkled, internodes shortened, the whole plant was obviously dwarfed, and there were no melons or few melons. In the middle and later stage, the leaves with late onset were shrunk, the leaf color was uneven in the shape of flowers and leaves, the young shoot was deformed, the growth was blocked, the melon was small or tail tip, and the deformity was twisted.

2. Prevention and treatment of balsam pear virus disease

Here, the pro-agricultural network has prepared two prevention and control methods for everyone, one is agricultural control, the other is chemical control, agricultural control is to stifle the source of balsam pear virus disease from planting means, and pesticide control is to control this virus through pesticide means. the specific methods are as follows:

1. Agricultural prevention and control

Select disease-resistant varieties, leave seeds from disease-free plants, disinfect balsam pear seeds before sowing, use medicinal soil as covering soil after sowing, spray insecticide and fungicide before transplanting, and spray new high-fat film after seedling transplanting, it can effectively prevent aboveground water from evaporation, seedling water does not transpiration, isolate diseases and insect pests, shorten slow seedling period, quickly adapt to the new environment, and grow healthily. When it is hot and dry, it should be often watered to improve the field humidity, reduce the harm of aphids and spread virus, spray growth promoters such as yield-increasing bacteria, multi-effect good or new high-fat film, or spray the mixture of potassium dihydrogen phosphate, black soap or laundry soap 1 / 1 / 1 / 1 / 1 / 1 / 2 / 4 / 5 times.

two。 Chemical control

At present, there is no good medicine for the prevention and treatment of balsam pear virus disease, which can only prevent the further expansion of the virus. One is to cure insects and prevent the virus from spreading by aphids and greenhouse whitefly. 6000-8000 times of Aketai water dispersible granules, 10000-15000 times of Amelo water dispersible granules and 2500-3000 times of acetamiprid EC can be selected. In the addition of the new high lipid film 500x solution, focus on spraying the back of leaves and growing points. The second is to spray virus passivator, such as using 20% virus A wettable powder 400-600 times liquid, can enhance the plant's resistance to the virus and disease tolerance. At the initial stage of the disease, the 200-300-fold solution of 5% Shiduqing was added to the 500-fold solution of the new high-fat membrane for 1-2 times, which had a certain effect.

The above are the prevention and control methods of balsam pear virus disease brought by pro-agricultural network, this disease mainly occurs in summer and autumn, especially balsam pear planted in open field is more prone to disease, because there is no radical cure at present, we should prepare in advance when planting balsam pear and remove the diseased plants as soon as possible to prevent cross-infection.