Prevention and treatment of corn wilt disease, prevention and control measures of corn roughage dise

Cerebral atrophy is a chronic, progressive brain disease that mainly damages the spinal cord and cerebellum, 11. Use bitter gourd or bitter gourd tea, bitter gourd is safer to lower blood sugar, without any ***, diabetes prevention and control.

Corn wilt disease is mainly prevented, pay attention to n fertilizer ** and field weeding, as well as the control of corn borer and planthopper

**Mixed spray with a virus-fighting fungicide (such as a fungus poison gram) + growth regulator + foliar fertilizer.

Corn roughness disease is a virus disease transmitted by the gray planthopper, which can be infected throughout the growth period, and the seedling stage is the most seriously affected, so it is necessary to prevent and control it in time, so what are the prevention and control measures of corn roughness disease?

Agricultural control. 1. It is necessary to choose disease-resistant varieties, because different varieties will have different disease resistance to rough shrinkage, which is the best way to avoid rough shrinkage.

2. Summer corn can be sown late appropriately, so that the susceptible growth period of corn and the peak period of planthopper transmission can be staggered, which can effectively prevent coarse shrinkage.

3. At the seedling stage of corn, field management should be strengthened, early emergence of seedlings should be promoted, and seedlings should be pulled out as soon as possible. and remove weeds in time to reduce the source of crude virus; At the same time, timely watering to prevent and control the occurrence of drought and aggravated viral diseases.

Pharmaceutical prevention and control. 1. Seed coating must be carried out before sowing, especially with systemic insecticides, which can well control planthoppers and prevent rough shrinkage.

2. After the onset of the disease, insecticides + antiviral agents + foliar fertilizers can be sprayed for prevention and control, which can well prevent and control coarse shrinkage.

In daily life, there are many farmers who will grow corn, because there are many farmers who feel that the best corn is very high, and there are many farmers who feel that the survival rate of corn is very high, and there are many farmers who feel that the sales volume of corn in the market is very high, so it can be seen that the reason why so many farmers like to plant corn is indeed reasonable. But when planting corn, corn will always have rough shrinkage disease, but do you know what are the prevention and control technologies of corn rough shrinkage disease?

In daily life, if you want to prevent and control corn rough shrinkage, then you must choose the soil is more fertile and broad when planting, and you must also use farmhouse fertilizer when planting, do not use the fertilizer bought outside, and often water the plants, but also to prevent the occurrence of pests and diseases, if there is a situation of small insects, then you must spray insecticides in time, but if the situation of small insects is very serious, then you can also spray some pesticides, but when spraying pesticides, you must be in moderation, must not be excessive, because if the excess will affect the growth of corn, and if the situation is very serious, it will also let the corn die directly, so I think if you want to prevent and control corn rough shrinkage disease must do a good job in these aspects, do not bring unnecessary trouble to yourself. And I think these control techniques are very useful, they work very well, and a lot of people do it.

In ordinary life, it is not easy to plant corn well, because when planting corn, it will be very easy to have rough shrinkage disease, so I think if you want to prevent and treat this disease, you must do the above aspects, and don't bring unnecessary trouble to yourself. And I firmly believe that if the above convenience can be done, it will definitely make corn planting very good, and it will also increase the yield of corn, so I think there are many prevention and control technologies for corn roughage disease.

Summary. 3) Wheat maturity period due to the gray planthopper has tender green, at the end of May and early June, after the wheat matures, a generation of gray planthopper adults from the wheat field to the surrounding spring corn field in large quantities, transferred to the spring corn seedlings, at this time 3-5 leaves of corn seedlings are in the sensitive period, so we must grasp the opportunity, in the early stage of the gray planthopper migration, in the corn field, 50 grams per mu with prochlorpin or 20-30 grams of imidacloprid and virus A about 50 grams mixed with water spray, once every 3-5 days, spray 3-4 times, It has a good preventive effect on the disease. (4) In the early stage of susceptibility, 20 ml of cypermethrin can be used, which can be mixed with special liquid fertilizer for corn and sprayed, which can effectively control the onset of disease.

The use of antiviral agents must highlight the word "early", after the 5-leaf stage of corn, its control and ** effect is poor.

Hello dear. 1) During the sowing period of corn, the seed coating agent containing systemic insecticide or corn seed dressing agent is used to treat the corn seeds to achieve the purpose of repelling the gray planthopper, and at the same time, it can also play a better role in the prevention and control of seed poison. (2) wheat filling period in mid-May, wheat filling early stage, is the critical period of prevention and control of a generation of gray planthopper young nymphs, at this time, timely grasp the development dynamics of gray planthopper, for the peak period of young nymphs centralized and unified medication, the use of imidacloprid (10 grams) or chloride (50 grams) and other systemic pesticides, the wheat field and roadside, ditch uncleared weeds spray treatment, spraying attention to the use of sufficient water, spraying evenly to ensure the effect of insect control.

3) Wheat maturity period due to the gray planthopper has tender green, at the end of May and early June, after the wheat matures, a generation of gray planthopper adults from the wheat field to the surrounding spring corn field in large quantities, transferred to the spring corn seedlings, at this time 3-5 leaves of corn seedlings are in the sensitive period, so we must grasp the opportunity, in the early stage of the gray planthopper migration, in the corn field, 50 grams per mu with prochlorpin or 20-30 grams of imidacloprid and virus A about 50 grams mixed with water spray, once every 3-5 days, spray 3-4 times, It has a good preventive effect on the disease. (4) In the early stage of susceptibility, 20 ml of cypermethrin can be used, which can be mixed with special liquid fertilizer for corn and sprayed, which can effectively control the onset of disease. The use of antiviral agents must highlight the word "early", after the 5-leaf stage of corn, its control and ** effect is poor.

Hope it helps you <>

Summary. Maize roughness disease is a viral disease caused by the crude shrinkage virus, and its transmission is mainly transmitted by the migration of gray planthoppers, especially in the northern region, which occurs very seriously and is difficult to prevent and control once it occurs. Maize roughness disease mainly occurs in late spring maize and early sowing summer maize.

Can corn shrinkage disease be cured???

Maize roughness disease is a viral disease caused by the crude shrinkage virus, and its transmission is mainly transmitted by the migration of gray planthoppers, especially in the northern region, which occurs very seriously and is difficult to prevent and control once it occurs. Maize roughness disease mainly occurs in late spring maize and early sowing summer maize.

After the occurrence of coarse shrinkage disease, the diseased plant should be pulled out immediately and taken out of the plot for destruction to avoid the occurrence of coarse shrinkage disease. We must take preventive measures, so that we can achieve a good prevention and control effect, if we wait until the disease occurs before preventing and controlling, it will cause a certain degree of loss.

If gray planthoppers are found in corn, it should be sprayed with cypermethrin 20 g + 70% imidacloprid 2 g + silicone as soon as possible.

The root cause of corn roughness disease is gray planthopper, as long as the prevention and control of gray planthopper is done, the spread of roughness disease is basically cut off.

Is it in, dear? Is corn diseased in large areas?

One hundred acres, can it be cured?

Under the test of drugs, 20 ml of cypermethrin can also be used in the early stage of infection, which is mixed with special liquid fertilizer for corn and sprayed, which can effectively control the onset of disease. The use of antiviral agents must highlight the word "early", after the 5-leaf stage of corn, its control and ** effect is poor.

Okay, got it, start spraying the corn tomorrow.

Corn roughness disease can be prevented and treated, and if the effect of medicine is not good, the diseased plant must be pulled out.

I just want to ask you, can you still give corn ** over, I heard other people say that this disease can't be cured.

Attention points in the future: the selection of disease-resistant varieties, which is the most economical and effective way to solve the harm of corn roughness, different corn varieties have certain differences in disease resistance.

I tell you very rigorously that this disease is really difficult to cure with medicine.

Okay, thanks.

Well, the gray planthopper, thrips, jumping beetles and other poisonous insects like to fly and jump, and they mostly hide in the cracks of the soil during the day, and come out to feed in the evening. In the arrangement of spraying time, it should generally be mastered at four or five o'clock in the afternoon or evening. Some people ignore the living habits and activity rules of these pests, and take it for granted that they choose to spray in the morning or spray during the lunch break after work, which can not effectively kill pests and affects the effectiveness of the pests.

In recent years, the occurrence of corn roughness disease has become more and more serious. If the coarse shrinkage disease cannot be prevented and treated in time, the yield will be reduced by 50% in the mild case, and the whole field will be wiped out in the severe case. The best way to do this is to move from intercropping to direct seeding, which can effectively prevent the spread of pathogens, reduce the incidence of maize, and stagger the peak of pest transmission.

The planthopper is a virus-spreading pest that originally parasitized wheat and rice, and when wheat and rice are harvested, it migrates to intercropping or early-sown corn. The rough shrinkage disease of maize is transmitted by the gray planthopper, and the virus mainly overwinters in winter wheat and gray planthopper, and the initial infection source is relatively small and the transmission route is single. Maize roughness can be infected and diseased throughout the growth period of maize, but it is the most susceptible before the 5-leaf stage.

The internodes of the susceptible plants were shortened and significantly dwarfed, and the leaves were mostly dark green, and transparent dotted line faded green stripes appeared on the thin veins on both sides of the main vein of the heart leaf, and the parietal leaves were clustered and opposite. The male and female ears of seriously diseased plants cannot be extracted, or although they can be extracted, the male panicles have very few branches, no pollen, and the female ears do not bear fruit or have very few seeds, and most of them die at the maize tasseling stage.

At present, most of the varieties promoted in production are at a high susceptibility or susceptibility level, and there are no varieties with good resistance. Therefore, the prevention and control of the disease is mainly to avoid the peak migration period of the gray planthopper, cut off the chain in its infection cycle, and chemical insecticide and disease control. The main measures are:

First, it is necessary to pay close attention to the occurrence dynamics of gray planthoppers in production. The second is to change the set of sowing to live broadcast, postpone the sowing date of summer maize, and avoid the peak migration period of gray planthoppers. Since the 4 and 5 leaf stage of maize is the most sensitive period for rough shrinkage disease, the most effective control measure is to avoid the peak susceptibility of maize seedlings and the peak migration of the poisonous planthopper.

Therefore, it is suggested that summer maize should be comprehensively interplanted to direct seeding, and the planting method of sowing after wheat harvest should be adopted. The third is chemical control. In areas of re-inflicted disease:

Insecticides can be sprayed on adjacent wheat fields and weeds at the edge of the field before corn sowing or before emergence, such as spraying 10 grams of 10% imidacloprid per mu. Adding 50 grams of 25% thiazinone to the wheat aphid control agent can effectively control the number of gray planthoppers. If the corn has been sown or found that there are more gray planthoppers in the weeds at the edge of the field and the areas where spring sowing corn and summer sowing corn are planted, it is recommended to spray pesticides and insects at the seedling stage, with 10% imidacloprid 30 grams per mu and 5% bacterial poison clear 100 ml spray, which can not only kill insects, but also play a certain role in reducing the disease, spray once every 7 days, and use 2 or 3 times in a row to control the disease.

The use of systemic insecticides to dress or coat, such as 100 kg of corn seeds with 10% imidacloprid 125 150 grams of seed dressing, the control effect of the gray planthopper can reach more than 1 month, and effectively control the occurrence of gray planthopper in the corn seedling stage, so as to achieve the purpose of controlling the spread of corn crude shrinkage virus. Other measures include timely uprooting of diseased plants in the field; In places where conditions permit, the weakness of the planthopper that the planthopper cannot survive on dicots can be used to plant soybeans and cotton around the corn as a protective belt to keep the planthopper out of the corn field.

Corn roughness disease is a virus disease transmitted by the gray planthopper, which has a great impact on the yield of corn, and the serious disease will reach more than 50%, or even no harvest. Now the corn roughness disease is analyzed and the control methods are proposed

Main symptoms: corn can be infected throughout the growth period, with the most serious damage at the seedling stage, the diseased seedlings are thick green, the leaves are stiff, the width is short and thick, the heart leaves can not be normal, and the growth of diseased plants is sluggish and dwarf. Most of them cannot be tasseled and fruitful, and although individual male spikes can be extracted, they have very few branches and no pollen. The spikes are deformed, with very few filaments, and many do not bear fruit.

Prevention and control methods: 1. Seed treatment: To prevent coarse shrinkage, seed dressing is a very important link. Seed dressing with seed coating agent + new high-fat film can isolate viral infection, do not affect germination and swelling function, strengthen respiration intensity, and improve seed germination rate.

2. Agricultural prevention and control: Choosing a safe sowing period, avoiding sowing after the age of maize susceptible leaves, and planting disease-resistant varieties can significantly reduce the symptoms and incidence of maize roughness disease. Combined with the seedlings in the field, the diseased plants in the field should be uprooted in time, and taken out of the field to burn or bury deeply.

3. Chemical control: In the fields with high amount of gray planthoppers, serious disease of rough shrinkage, and corn seedling age within 10 leaves, targeted agents and new high-lipid films should be sprayed according to plant protection requirements at the seedling stage to improve drug efficacy.

Planthopper-borne viruses should be pulled out, and even if they can grow seeds, they will not yield much. Choose disease-resistant varieties and control planthoppers.