How to prevent and cure towel gourd virus disease?

How to prevent and cure towel gourd virus disease? Please refer to the following methods for prevention and control of towel gourd virus disease: first, the disease symptoms of young leaves are uneven, uneven bubble spots, small leaves, some obvious wrinkles; adult leaves susceptible to yellow ring spots or yellow-green mosaic; the leaves with serious disease become hard and brittle, and the leaf margin is engraved deeply. The growth of the diseased plant is slow, the ability to bear melon and fruit is poor, the melon and fruit is small or twisted, and the host range of cucumber mosaic virus is very wide. It is not only harmful to many kinds of melon crops, but also easily transmitted by juice contact with a variety of aphids. Cucumber seeds are virus-free, but the seed-carrying rate of muskmelon mosaic caused by cucumber mosaic virus infection can be as high as 16%-18%. The number of plants is directly related to each other, and at the same time, it also reduces the disease resistance of plants, resulting in serious disease. In addition, extensive field management, lack of fertilizer and lack of water also aggravate the severity of the disease. Third, prevention and control methods 1, reasonable fertilization, more farm fertilizer, not partial application of nitrogen fertilizer, so as to prevent melon seedlings from greedy and susceptible to disease. Where possible, 3040 kg of plant ash is sprayed on the leaves before the dew is dry every 667 square meters, which can detoxify the virus. 2. Completely kill the Bemisia Tabaci in the shed. 1000 times of 25% buprofezin EC or 1000 times of 25% methyl acaricidal EC or 4000 times of imidacloprid concentrated solvent can be used. 3. Do not mix with cucumbers and melons, and do not replant towel gourd in the fields where these melons were planted last year or the year before last, so as not to transmit virus to each other or by nematodes. Click for more towel gourd planting techniques click to get more vegetable planting techniques