CATDOLL : CATDOLL: What medicine can be used to treat corn virus disease?

1. What medicine can be used to treat corn virus disease?

Corn virus disease is a corn disease caused by a virus. Currently, there is no effective pesticide to treat virus diseases. Therefore, for corn plants that have been infected with the virus, the best way is to take measures to prevent the spread of the virus, including the following:

1. Strengthen prevention and control: discover diseases in time, take timely measures, remove diseased plants in time, and clean up the diseased parts and the weeds around them to prevent the spread of the virus.

2. Plant disease-resistant varieties: While choosing maize varieties, you should go for disease-resistant varieties, which can greatly reduce the incidence of viral diseases.

3. Strengthen field management: clean up stagnant water in the field in time, keep the field well ventilated, increase light and natural ventilation for corn plants, which will help reduce the occurrence of viral diseases.

4. Maintain field hygiene: clean up field garbage in a timely manner, prune corn plants appropriately, and maintain field hygiene.

To sum up, the best way to prevent and control corn virus diseases is to take a series of comprehensive measures to strengthen field management and prevention to reduce the occurrence and spread of viral diseases.

2. Grape virus disease, what medicine should I use? Thank you?

Grape virus disease is a grape disease that is currently attracting much attention from countries around the world.

3. What medicine can be used to prevent and treat fruit tree viral diseases?

The treatment of fruit tree virus diseases is relatively difficult, and there is currently no effective drug that can cure the virus. Therefore, the key to prevention and control is to prevent and control the spread of the virus.

Here are some common prevention and treatment methods:

1. Select virus-free seedlings, control the source of diseases, and conduct quarantine of seedlings.

2. Strengthen the fruit trees, provide shade for the orchard, and increase disease resistance.

3. Strengthen agricultural production management, pay attention to the nutritional balance of fruit trees, pest and disease control, and temperature and humidity management.

4. Strictly implement disinfection methods, including disinfection of tools, devices and equipment, and personnel protection.

In terms of the treatment of fruit tree virus diseases, the disease should be discovered and controlled as early as possible, and fruit trees should be checked regularly to promptly detect and treat diseased trees to control the spread of the virus. At the same time, according to the specific condition, appropriate shearing therapy, drug spraying, scion propagation and other means can be used to alleviate the symptoms of fruit trees and improve their resistance.

4. What medicine is used to treat viral diseases caused by vegetables?

Viral diseases are everywhere and can occur on almost any crop. Moreover, they are extremely difficult to prevent and control. In crop cultivation, prevention is the main approach. Known virus inhibitors can only inhibit the concentration of viruses, but cannot kill them. When the drugs are stopped for a period of time, the concentration of viruses will return to the previous level. Viral diseases are the nightmare of crops. They cannot be driven away and are lingering. They are called "cancer of crops."

Vegetables such as chrysanthemum, cabbage, cauliflower, radish, beans, cabbage, loofah, pepper, tomato, pumpkin, cucumber, zucchini, green onion, onion, potato, etc., can all get viral diseases, and the symptoms vary. Taking potato as an example, let's introduce the prevention and treatment of vegetable viral diseases.

Virus disease is one of the main diseases of potato, occurring in all potato-growing areas. It can lead to plant physiological and metabolic disorders, reduced vitality, and significant yield reductions. The yield loss of susceptible varieties can reach more than 90%.

1. Symptoms

There are three common types of potato virus diseases.

1. Mosaic type

The chlorophyll distribution on potato leaves is uneven, showing dark green, light green or yellow-green mottled leaves. In severe cases, the leaves are wrinkled, the whole plant is dwarfed, and sometimes the leaf veins are transparent.

2. Necrotic type

Brown necrotic spots may appear on potato leaves, petioles, branches, and stems. The spots may develop into necrotic streaks. In severe cases, the entire leaf may die or wilt and fall off.

3. Curled leaf type

Potato leaves curl inward along the main veins or edges and become hard. In severe cases, the leaves roll into a tube shape.

In addition to the three symptoms that appear individually, there are also three types of combined infections that can cause streak necrosis in potatoes.

2. Transmission routes and conditions for disease onset

Viral diseases on potatoes are mainly transmitted through aphids, friction between leaves, and sap. Poor field management leads to a large number of aphids and severe disease.

In addition, when the temperature is above 25℃, the potato's resistance to the virus decreases, which is conducive to the mass reproduction and migration of the vector aphids, which aggravates the spread of the virus and leads to a large-scale expansion. Therefore, potatoes grown in some cool mountainous areas are less susceptible to the disease.

In addition, the disease resistance of potato varieties and cultivation measures will affect the occurrence of viral diseases.

III. Preventive and control measures

With the improvement of virus detection technology, people have found that potatoes are infected by one or more viruses. The reproduction of viruses is closely linked to the normal metabolic process of plants. Unlike the damage caused by insects, nematodes, fungi and bacteria, the use of chemical agents to prevent and control crop virus diseases is almost ineffective.

Common antiviral drugs on the market today, such as morpholino hydrochloride, lentinan, copper preparations, cintamanib, triacontanol, chlorobromoisocyanuric acid, amino oligosaccharides, etc., are also harmful to the plant itself. At the same time, inhibitors cannot cure the entire diseased plant. When the drug is stopped, the virus will return to its previous state.

Using chemical agents to kill transmission media, such as aphids and planthoppers, can reduce the spread of some viruses. However, some viruses are transmitted through contact, or aphids themselves are poisonous and spread the virus at the moment of sucking. For such viral diseases, using pesticides such as imidacloprid, acetamiprid, spirotetramat, pyrethroid pesticides, etc. is ineffective because they have already completed the transmission process.

For the prevention and control of transmission vectors, early seedling cutting and early harvesting should be adopted according to insect situation monitoring and the seed preservation effect of avoiding the transmission of the virus by aphids is more significant.

In actual production, the prevention and control of viruses is mainly based on "prevention" and supplemented by "treatment". The main points are: 1. Select varieties with strong anti-virus ability. 2. Timely control aphids, planthoppers, etc. before and after emergence. 3. Improve cultivation measures and strengthen field management. 4. Pay attention to the isolation of diseased plants during agricultural operations. 5. Pay attention to the supplementation of trace element fertilizers. 6. Drug control can be carried out in the early stage of the disease, using mushroom proteoglycans, oxadiazine mancozeb, morpholinoguanidine-copper, metalaxyl-mancozeb, triacontanol, virus A and other sprays for prevention and control.

In short, it is difficult to cure the virus disease of vegetables, and there is no good medicine to completely kill the virus. Prevention is the main approach in production, and foliar fertilizer is recommended, such as plant spirit, fulvic acid, yield-increasing bacteria, spraying treasure, potassium dihydrogen phosphate, etc., to regulate plant growth and enhance the disease resistance of plants.

5. What specific medicine is used to treat tomato viral diseases?

Tomato viral disease, the virus is transmitted by aphids, thrips and whiteflies.

6. What is the best medicine to prevent and treat watermelon virus disease?

Watermelon virus disease is caused by seeds carrying virus or insects, especially aphids, as vectors of virus transmission. It is more common in autumn watermelons. Its symptoms are: new leaves become narrow and long, wrinkled and twisted, and grow slowly; the plants are dwarfed and difficult to elongate, and some plants have clusters on the top that do not grow; the flower organs are poorly developed and cannot bear fruit. Even if they bear fruit, the fruit is very small. The fruit of the diseased plants that develop later forms deformed fruit or does not bear fruit. Some fruit surfaces are uneven, the fruit is small, and the flesh is dark brown, which has a great impact on yield and quality.

The prevention and control method is mainly to adhere to prevention first and take comprehensive measures to eliminate the source of virus infection. (1) Agricultural prevention and control ① Seed disinfection: Before sowing, scald the seeds with 55~601 hot water for 20 minutes, or soak the seeds with 10% trisodium phosphate solution for 20 minutes, and then germinate and sow. ② Thoroughly control aphids and other virus-transmitting pests during the seedling stage. When the watermelon seedlings emerge, immediately use 5% highly effective cypermethrin 2000 times solution, or 1.

8% Haizheng insecticide emulsifiable concentrate 2000 times diluted, or 5.7% Tianwang Baishu emulsifiable concentrate 2500 times diluted for prevention and control, spray once every 7 days, spray 2~3 times in a row. ③ Remove weeds in the melon field and surrounding areas, and remove diseased plants in time. During field operations such as pruning and pollination, try to avoid damaging the plants. Tools and hands that have been used on diseased plants should be disinfected with 80% alcohol before working on healthy plants.

④ Treat the diseased plants differently. If the disease occurs before fruiting, it must be removed. If the disease occurs on the upper leaves or vine tops after fruiting, leave 2 to 3 leaves on the upper part of the fruiting area and then cut them off and burn them. (2) In the early stage of disease control, use the following: ① 500 times diluted 20% Virus A wettable powder; ② 1000 times diluted 1.5% Phytopathogen emulsifiable concentrate; ③ 300 times diluted 5% Bacteria and Virus Cleaner; ④ 300 to 500 times diluted 20% Virus Killer (imported, has therapeutic effect).

You can choose any one of the above-mentioned agents and use them alternately, spraying once every 7 days for 2 to 3 times in a row.

7. What medicine can be used to treat chicken mite disease?

To treat skin mites, you can use 0.25% DDT, 2%-5% DDT emulsion, and 1% BHC suspension emulsion to disinfect the chicken house to achieve the purpose of deworming.

To treat knee mites in chickens, pine tar liniment can be used on the back, neck and wings. To treat chigger mites in chickens, 70% alcohol or 5% sulfur ointment can be applied to the affected parts of the chickens, both of which have good effects. In addition, the above drugs should still be used to disinfect the chicken house regularly.

8. Orchid, what is the best medicine to treat Bailasi disease (viral disease)?

Generally speaking, viruses will die in an environment above 60 degrees.

I have never done any experiments and have never seen any records of what temperature the Byras virus can tolerate.

I guess it would burn him to death.

9. What medicine is used to prevent and treat sweet potato leaf virus disease?

You can spray Jinggangmycin pesticide to prevent and treat it. Sweet potato leaf rust is caused by a virus disease. It spreads quickly and causes great harm. It will affect the quality and yield of sweet potatoes. Therefore, when the sweet potato leaves have rust, you should spray them with Jinggangmycin pesticide in time, but you should choose to use it on a sunny day.

10. What medicine can be used to treat wheat streak virus disease?

Wheat stripe virus disease can be controlled by spraying pesticides such as diniconazole, thiophanate-methyl, and tebuconazole.

For wheat bacterial stripe leaf blight, spray 20% Rhizoctonia solani at 1000 times and 25% Dilutol at 2000 times.