Snow pea pole fly is extremely harmful, what medicine is good for snow pea pole fly?

Snow pea pole fly: I think it's better to use insecticidal pesticides directly. Because once this harmful organism is not removed, it will bring great harm to crops, so that many crops will reduce yields, or even die. Use pesticides directly.

It can effectively achieve the effect of removing pests, so as to ensure the yield of food, but it should be noted that we should also use insecticides scientifically when we use them, and we must not increase the dosage, which will not only cause damage to plants, but also cause pollution of land. The control of snow pea pole fly should not only be paid attention to, but also develop certain habits, because only in this way can we ensure the stability of grain production and will not reduce grain production due to too many pests. I think we need to do a good job in the control of snow pea pole flies in three aspects.

The first aspect is to choose crops that are resistant to diseases and pests. Because choosing such crops can effectively resist the invasion of such pests, and at the same time ensure the stability of the yield, not only can help you save economic costs, but also help you save a lot of time, compared to the frequent use of pesticides, I think it is very good. However, this kind of crop will be relatively expensive, and you must choose the best cost-effective one when choosing.

The second aspect is to carry out scientific management. There are many people who will not manage the land scientifically when they are planting, resulting in more and more serious pests and diseases when they are planting, and even lead to the situation of land extinction, so they should do scientific management of the prevention and control of such pests, only to achieve scientific and effective results, in order to ensure the stability of grain production, will not be affected by external factors and lead to a reduction in grain production.

The third aspect is to keep the surroundings andEcological balance。Because only when the ecological balance is that one's own production can increase steadily, if the land is very polluted and ecologically unbalanced, I think that even if I have more houses, the measures will not help. It is necessary to ensure the overall ecological balance and environmental safety and environmental protection in order to effectively ensure the stability of their own output.

The most effective drug is actually a drug like 560, sprayed twice a day, about a week can have a good effect, and this bean will grow very well.

It is best to use this antiseptic drug is very good, and it can achieve a very ideal effect twice a day, and it can also make the acne grow very big, and the taste is also very good.

It is better to use 1000 times the drug of phosphine for snow pea fly fly and this medicine can be very good for the control of snow pea fly

In normal times, the land should be managed in a timely manner, and then the soil of the land should be sterilized, and pesticides to prevent pests and diseases should be sprayed in advance. It is also necessary to strengthen the management of water charges in ordinary times, so that it can be well prevented.

First of all, we need to choose some pesticides to spray on the leaves of snow peas, and we can also use root irrigation to control them, or we can turn the soil and water frequently, which can have the effect of prevention and control.

It is necessary to spray pesticides in time in the process of growth to prevent such pests and diseases, and at the same time, it is also necessary to water and fertilize in time, and also have sufficient light time.

In the prevention and control of pea leaf miner fly, we should first remove the diseased plants or wilted disease residues in the field in time, which can not only reduce the base number of insect sources, but also significantly reduce the occurrence of subsequent generations. Secondly, 10% insect growth regulator can also be used to grasp the critical period of control, and the control of insect pests generally pays attention to the treatment of small eggs, that is, the prevention and control from the peak of oviposition to the peak of egg hatching. If a tortuous insect path formed by leaf miner flies is observed in the field, the control of pesticides can be reasonably selected according to the occurrence base.

The pea leaf miner fly, also known as the spotted leaf miner, is a pest of the family Diptera loon, also known as leaf maggot, which mainly harms pea leaves with larvae. The adult is about 3 mm, pale yellow, the larvae have 3 instars, the 1st instar larvae are transparent, and the 2-3rd instar larvae are pale yellow. Clean the fields to eliminate overwintering pupa and reduce the number of insect sources.

In early spring, the focus can be on controlling the source of the first generation. Pea, lettuce and green cabbage were the main hosts of the first generation of pea leaf miner fly, and the population density was the largest, so the above three hosts should be the main targets for control. Control one generation on 3 crops at the same time.

Percent powder, spraying powder per mu with 100% powder kilograms, or spraying with 40% emulsifiable concentrate 1000 times liquid, 60% wettable powder 1500 times liquid spray, can control aphids, red spiders, allium thrips, leaf miners and other pests, with peas, broad beans, rape, cabbage, cabbage and radish and other leguminous and cruciferous vegetables are more seriously damaged. Generally, the leaf damage rate is 50% to 60%, the plant damage rate of chrysanthemum is as high as 100%, and the leaf damage rate is 90%. Some areas have been transformed from minor pests to major pests.

Agricultural control. Clean the fields to eliminate overwintering pupa and reduce the number of insect sources. In early spring, the focus can be on controlling the source of the first generation.

Pea, lettuce and green cabbage were the main hosts of the first generation of pea leaf miner fly, and the population density was the largest, so the above three hosts should be the main targets for control. At the seedling stage of maize, it coincides with the peak period of the first generation of adult migration, that is, the peak period of virus transmission, and at this time, the jade rice sown after wheat harvest has not yet emerged, so it avoids the peak period of adult activity of the first generation of gray planthoppers, which is the reason why spring sowing and wheat set corn occur seriously, while direct seeding corn occurs lightly.

The control of snow pea pole fly is a very important method, if this problem can not be solved, then for growers, it is easy to produce some relatively large losses, so for this thing must have enough attention, then in prevention.

What kind of method should be used in the process of snow pea stem fly? I believe that many friends are also particularly concerned about this matter. <>

If you want to understand why the snow pea induction effect is very large, then you must understand why it causes injury This symptom is mainly because the larvae burrow into the perception of the scene and cause damage to the plant, in this case it will cause the neck stem to be hollow, so the transport of water and nutrients will be affected to a certain extent, then in this case, the plant will not be able to get enough nutrients, and in the end it will die, and the yield will be reduced. <>

In order to avoid such a situation, it is a very good method to control by means of pesticides, and it is also a major method used in the seedling period. <>

Through this method can get rid of the impact of these insect pests on the plant, and at the same time has a very great help effect on the lifting of materials, and in this process there are still many details that need to be paid special attention to, and can not be taken lightly when planting crops, only for these crops to have more attention, can really play a role in improving yield.

There are many farmers who do not pay special attention to these crops after planting crops, and even ignore them for a long time, so in this case, the help for the growth of crops will become relatively small, so the overall yield is not guaranteed, and this situation is believed to be undesirable.

Timely disposal of straw, drug prevention and control, etc. Timely treatment of straw to reduce overwintering of pests and diseases; Drug prevention and control, regular spraying at the seedling stage.

The way to prevent it is to sprinkle some insect repellent next to the snow peas, you can also apply more fertilizer to the snow peas when they grow in the later stage, you can also put some scarecrows next to the snow peas, you can also apply more pesticides or fertilizers when planting snow peas, or water the snow peas frequently, these are better prevention methods.

Control measures: 1. Treat straw and root stubble in time after harvesting to reduce the source of overwintering insects; 2. When small spots appear in the leaves at the initial stage, spray with 40% propyl bromidos EC 600 times, or 48% methyl chlorpyrifos EC 800 times liquid.

It can be prevented by pesticides, and the growth of snow peas should also be observed, and attention should be paid to preventing the root causes of pests and diseases, and at the same time, fertilization, control measures, and so on.

Sterilize and disinfect the seeds of snow peas in advance to prevent the emergence of some insect pests, and you can also choose seeds with better quality and fewer pests and diseases.

Brown spot is considered.

It mainly damages leaves, stems and pods. The leaves are infected with irregular lilac spots, under high temperature and high humidity conditions, the lesions spread rapidly, covering the entire leaf, and then the diseased leaves turn yellow and twist and die, some are dark brown irregular ring spots, and the necrotic place produces black spots. The pathogen mainly overwinters on the seeds and spreads through wind and rain.

Sowing too early or suffering from low temperature and cold damage, or soil clay, high humidity, or partial application of nitrogen fertilizer, and vigorous plant growth are all prone to disease.

Control methods: agricultural control. Seriously diseased fields and non-leguminous vegetables are rotated for 2-3 years, and seeds should be disinfected at the same time, pre-soaked in cold water for 4-5 hours, soaked in 50 warm water for 5 minutes, and then cooled, dried and sown.

Appropriate dense planting, increased potassium fertilizer; Pharmaceutical prevention and control. At the beginning of the disease, spray 800 times of 50 benzyl wettable powder suspension, 500 times of 70 methyl tobuzine wettable powder, and 600 times of 75 chlorothalonil wettable powder, once every 7 days, 2-3 times.

Teacher Liu for reference.