How to prevent insect infestation when planting winter wheat?

1. Reduce the source of bacteria and insects in the field by cleaning up the weeds in the field. 2. The seeds can be coated, and the seeds can be effectively prevented from underground pests, aphids and other pests and diseases by coating the seed coating agent.

It is necessary to manage wheat in a targeted manner and remove weeds in a timely manner. Weeds and wheat seedlings around the wheat field should be manually cleared to effectively control the soil where pests and diseases breed. In the process of sowing wheat, it is necessary to try to avoid the high incidence of pests and diseases, so that insects do not invade the wheat.

To plant winter wheat, we must first select high-quality varieties to ensure the vitality of wheat seedlings, secondly, prevent drought and irrigate reasonably, and thirdly, carry out reasonable fertilization of the soil to ensure the nutritional supply of winter wheat in the soil.

When planting winter wheat, we must pay attention to the disasters brought by low temperature weather to winter wheat, do a good job of moisture and frost prevention, in addition to the prevention and control of pests and diseases, regular fertilization and fertilization, so that they receive sufficient light and water.

First of all, we must choose high-quality seeds, we must choose excellent varieties, we must choose seeds that germinate neatly, and we must expose the seeds to the sun before planting to improve the permeability of the seeds, and then spray pesticides to prevent insect pests.

Don't water too much, choose better varieties, carry out reasonable fertilization, use reasonable methods to drink water for irrigation, and pay attention to the time of sowing.

After planting, it is necessary to cultivate and weed, maintain 70% humidity of the soil, and the wheat winter likes moisture, shade, cold-tolerant plants, and in the summer of high temperature and strong sunlight, shade and cooling measures should be taken. In July, we will water fertilizer again, 2500 kg of organic fertilizer from the farm, 50 kg of cake fertilizer, and pay attention to weeding in field management. Another is pest control, in order to improve economic benefits, wheat can also be interplanted with corn in the winter field, or spring vegetables are available.

In fact, the vitality of wild wheat winter is very tenacious, and the requirements for the growth environment are not high. In the past, it was more common in wheat fields, and this plant also preferred to be found in fertile, well-drained, soft sandy soils. Select excellent wheat varieties suitable for planting in the region, dry, dry in the sun before sowing, increase the activity of enzymes, improve germination rate, and use seed coating agent and new high-fat film to carry out seed dressing on seeds, stack in the shade for 6 8 hours of sowing, medicine mixing can drive underground pests and diseases.

As a planting seedling. In general, the seedlings are planted immediately after harvesting. When the seedlings are planted, because the stems and roots left are too long, it is easy to form double stem nodes after planting, that is, farmers call tall seedlings, so that the underground stem blocks that grow are too few, which affects the yield.

When planting it, it is also important to choose the right season and the right temperature, and it will be planted in April or May every year, when the temperature has risen, not as cold as winter, and the average temperature is about 19 degrees to 21 degrees. After years of planting, this plant will breed many varieties, and now there are many varieties on the market, but the most are still two varieties, the first is the erect type of wheat winter, and the second is the creeping spike staring at the imitation pulsation. It is necessary to choose sandy soil with loose soil and fertile soil, and apply sufficient base fertilizer before planting.

Generally, about 4,000 kg of fully decomposed farmhouse fertilizer and 40 kg of 15 15% nitrogen, phosphorus and potassium compound fertilizer are applied per mu. First, spread the farm manure and compound fertilizer evenly in the field.

Buy potatoes and spray pesticides, manage them in accordance with scientific methods, pay attention to the amount of fertilizer, pay attention to the number of watering, and select good varieties for planting in advance. Black spot disease, mole crickets, thread insects, yellow leaf disease, and white hair disease often appear.

It can be radicalized to disinfect the land at the time of planting, so that it can be a good way to prevent pests and diseases, and then it can also be sprayed with pesticides to prevent pests and diseases in advance. Black spot disease, mole crickets, root nematodes, these pests and diseases will occur, so Ming Gaoqin must do a good job of weed management in the field during the planting period.

When planting, it is necessary to spray some pesticides in the soil first, and then grind and spray some after it is done, and then spray pesticides on time according to its growth cycle. Black spot disease, mole destroys wild crickets, root nematodes.

The first shed is to do a good job of bottom fertilizer, and it is best to use the rotation method must be sprayed with pesticides in time, and there is to fertilize in time, and then to loosen the soil in time, this plant is more likely to appear in the process of planting chain is black spot disease, and then sometimes there will be root knot macronematode disease, and there is a ground tiger.

The weather is getting cooler, and winter wheat is being grown in many places. Let's introduce to you the precautions when planting wheat and how to prevent it?

1.Soil requirements.

Wheat grows well in both slightly acidic and weakly alkaline soils, but the pH of the soil that is most suitable for growing high-yielding wheat is. The high content of organic matter and good soil structure and physical and chemical properties can enhance the water and fertilizer retention performance of the soil and better coordinate the relationship between fertilizer, water, gas and heat in the soil. The depth of cultivated land in high-yield wheat fields should be more than 20 cm, and it is better to reach 25-30 cm.

Deepening the tillage layer can improve the physical and chemical properties of soil, increase soil water retention, expand the range of root nutrient absorption, and increase yield. However, if the soil depth exceeds 40 cm, not only will it not increase the yield of the year, but it may also reduce it.

2.Weather temperature.

When sowing wheat, the temperature should not be too high, but if the temperature is too low, it is not conducive to the later growth of wheat. In general, the average daily temperature should be lower than 18 degrees, and around 16 degrees is the most suitable. If the temperature is already above 20 degrees, it is best not to sow for the time being.

The temperature is slightly higher, and if the soil conditions are good, the wheat seedlings emerge quickly, which is also easy to lead to the vigorous growth of wheat.

3.Seed selection.

When purchasing, it is best to buy seeds from a legal seed production and business unit. The purchase of seeds depends on whether the seed seller has a seed business license and a business license. Do not buy wheat seeds from unlicensed illegal units, agricultural supply stores, or street vendors.

When selecting wheat varieties in a region, it is necessary to pay attention to analyzing the characteristics of local pests and diseases and natural disasters, and select wheat varieties with stable yield, high yield and strong stress resistance suitable for local conditions.

4.Pest and disease control.

Common wheat diseases such as rust, powdery mildew, scab, downy mildew, etc. Leaf rust is generally the main disease in the development stage of wheat, which generally occurs in May. We should choose improved varieties that are resistant to leaf rust and eliminate local early bacteria**.

After wheat harvest, self-grown wheat seedlings and weeds should be removed in time to reduce the source of summer bacteria. strengthen cultivation management and avoid early sowing in areas where autumn seedlings are prone to disease; Rational fertilization, avoid excessive and late application of nitrogen fertilizer, appropriately increase the application rate of phosphorus and potassium fertilizer, promote the growth and development of wheat, and improve disease resistance.

The above are the precautions and solutions in the process of wheat planting, I hope it can help you.

The selection of varieties is very important, the situation of the planting land is also very important, we must prepare in advance, do a good job of fertilizer in advance, sow on time, pay attention to watering, pay attention to growth, pay attention to pesticide spraying.

The problem that needs to be paid attention to is to pay attention to the way of planting, pay attention to the planting season, pay attention to the month of planting, and pay attention to the planting skills. It is possible to fertilize the land for prevention.

When planting, we must choose the soil is relatively fertile and broad, and we must use farmhouse fertilizer when fertilizing, 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 we must spray insecticides in time. I think if we can do these things well, we will be able to grow wheat well.

The first is agricultural measures. Clean the countryside. Do a good job of weeding and eradication before sowing, thoroughly remove weeds in the fields and at the edge of the ground, and burn them in a concentrated manner, so as to destroy the habitats of gray planthoppers, soil locusts, crickets, etc.

Eliminate its breeding ground and reduce the base number of insect sources. Late sowing at the right time. For wheat total erosion disease, root rot, sheath blight and other fields with heavy occurrences, the implementation of late sowing of wheat at the appropriate date can effectively reduce the infection and occurrence of diseases.

Sowing as late as possible within the appropriate period to reduce the damage of soil locusts and crickets, shorten the infection time of pathogens, and control and reduce the incidence of disease before winter. It can also effectively avoid the peak period when poisonous insects (gray planthoppers, aphids) transmit bush dwarf disease and yellow dwarf disease. Crop rotation and stubble.

Plots with heavy occurrence of total erosion and sheath blight can be rotated with non-host crops such as cotton, vegetables, and sweet potatoes for 2-3 years in places with conditions, which can effectively control their occurrence. Choose good breeds. Rational layout and promotion of resistant varieties can effectively prevent the occurrence of epidemic pests and diseases.

Selected improved varieties are an effective means to control the spread of malignant weeds and reduce the number of weed provenances.

The second is chemical control. Total erosion of wheat. Dichloroisocyanuric acid was selected for soil disinfection, and 500 grams of chemicals per mu were mixed with 20 kg of fine soil and evenly sprinkled.

Then use 200-300 ml of siliothiazin suspension agent to 1000 ml of water, mix 100 kg of wheat seeds, stir evenly and stuff for 3 hours; Or use 6% tebuconazole suspension seed coating agent, according to the effective ingredient of the seed amount) after 6 hours of seed dressing, dry and sow seeds. Wheat smut, stripe rust, powdery mildew, sheath blight, root rot, stem base rot. Mainly use 10 billion Bacillus subtilis 50 grams or 100 billion Bacillus subtilis 20-30 grams mixed with 15 kg of wheat seeds, implement green prevention and control, and effectively solve the harm of sheath blight and root rot.

Conventional chemical agent 30 ml of difenoconazole suspension seed coating agent 100-150 ml of water, 10-15 kg of wheat seeds, stir evenly and pile for 3 hours, dry and sow seeds; Or use 60 ml of 6% tebuconazole suspension seed coating agent to 2000 ml of water, mix 100 kg of wheat seeds, pile for 6 hours, dry and sow seeds.

Finally, there are underground pests, aphids. To control underground pests, choose 200 ml of 50% phoxanthion EC, 5000 ml of water, mix 100 kg of wheat seeds, stir evenly and stuff for 2-3 hours, sow after drying, and pay attention to the amount of medicine (preparation) shall not exceed the weight of the seeds, so as not to affect germination; Or use 3-4 kg of 3% phoxanthion granules, evenly sprinkle and then turn over the ground to sow seeds. To control aphids in the seedling stage before winter, the use of imidacloprid seed dressing or coating technology can effectively reduce the occurrence of aphids and delay the occurrence of aphids, which is a scientific measure to move the prevention and control threshold forward and ensure the zero growth of pesticides.

Use 50-70 grams of 70% imidacloprid dispersible granules to 500 ml of water, mix 20 25 kg of wheat seeds, stir evenly, absorb and dry before sowing. Mixed pest and disease areas. In the mixed pest and disease area, the above insecticides and fungicides can be mixed according to the types of pests and diseases to achieve the effect of "one mix and multiple prevention".

Operation rules: mix the insecticide first, and then mix the fungicide after the seeds are dried; Mix the emulsion first, and then mix the powder after it is absorbed and dried. The seed dressing should be used with mixing, and should not be put for a long time.

Pesticides. Because when wheat is sown, spraying pesticides on the soil can effectively control pests and diseases.

The first thing is to choose varieties with strong resistance to pests and diseases, and the second is to spray drugs to control them.

When wheat is planted, it is necessary to spray pesticides first, and then spray pesticides after planting, and spray pesticides on time according to the growth status of wheat.

It is necessary to turn the soil in advance, to fertilize in time, to pay attention to the density of planting, to ventilate in time, and to control the intensity of light.

Pests and diseases in the sowing period of wheat can be prevented, first of all, in the growing period of wheat should be actively watered and fertilized, pay attention to field management. Timely weeding and correct use of pesticides.

The first thing is to choose varieties with strong resistance to pests and diseases, and the second is to spray drugs to control pests and diseases, which is a good way.

Remove weeds in the field in time, reduce the source of bacteria, choose high-quality seeds, and apply fertilizer regularly, which can be used to kill insects and prevent diseases by dividing some agents.

Diseases and pests during wheat sowing can seriously affect yields, which is something we all know, and if you want to prevent pests and diseases during wheat sowing, you canStart with the optimization of the soilBecause we all know that wheat crops have very strict requirements for the soil, and the vitality of the soil also plays a very key role in the cultivation of wheat.

Timely rotation of the land can keep the wheat yield stable, and at the same time, there are very strict requirements for the selection of wheat varieties, we must keep up with the development of the times, choose wheat that adapts to the local climatic conditions, and can better improve the germination rate of wheat.

At the same time, we need to pay attention to the selection of seeds before a preliminary screening, if the planting amount is too large, you can take a trial to solve this problem, I hope everyone can know this, at the same time we should also understand a problem, that is, no matter what crops are needed to water and top dressing, so we need to pay attention to the use of fertilizer for wheat, must be in strict accordance with scientific standards, only in this way can we better improve the yield, Let's have a good harvest.

The prevention and control of wheat pests and diseases also has a lot of measures, in practice should be a comprehensive use of agricultural physics and biology and other ways, multi-pronged approach can better avoid the worsening of the problem, as little as possible to use pesticides to make wheat grow more, green health is more beneficial to the human body, I hope everyone can know this, at the same time in the context of China's rapid social and economic development, we also believe that there will be more and more scientists to devote themselves to the research of wheat planting, We also believe that our crop yield will also reach a new high, so let's look forward to it.