When growing cotton, how to control spider mites?

The agricultural control measures for the prevention and control of spider mites are: first, to implement autumn and winter irrigation, second, to avoid planting cotton with sesame, melons and other crops, and third, to apply more potassium fertilizer.

Scientific and reasonable fertilization and water control can effectively prevent cotton pests and diseases, once the plant is found to be diseased, it should be evenly sprayed on the leaves of cotton with plant-specific insecticides. Do not water for the time being during the medication.

There are many ways. Autumn and winter irrigation can greatly reduce the number of roycites that survive in winter and avoid damage in the next year. Do not let cotton intercrop with sesame or melons, rotate, and apply more potassium fertilizer to promote cotton growth.

Proper watering increases humidity to inhibit the occurrence of spider mites and eradicate weeds.

1. Prevention-oriented, starting from ridges and ditches to eliminate insect sources and reduce or avoid the migration of pests to cotton fields. 2. Acaricides with different mechanisms of action are used alternately to reduce the resistance of red spiders. 3. Rational drug mixing, and comprehensive prevention and control of red spiders in a quick-acting + long-term way.

At the same time, it can also be combined with other agents to effectively control aphids, blind bugs and other pests. 4. According to the law of red spider occurrence of drugs, prevention should be given priority before the high incidence period in July, and quick-acting acaricides should be used more, and long-acting acaricides should be used for prevention and control when the high incidence period is coming. 5. It is best to spray from bottom to top in the way of spraying, or use a spray gun to spray, and it is best to adjust the pressure to the pressure that can blow the blade over but not hurt the blade, so as to ensure that the drug can be directly in contact with the pests and improve the drug effect.

First of all, when planting, we must choose the soil is more fertile and broad land, 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 are small insects, then we must spray insecticides in time. But I think the most important thing is that when planting cotton, you must pay attention to the time and never plant too late, because only by doing this can you prevent the occurrence of red spiders and aphids in cotton.

Autumn and winter irrigation can be carried out to control insect pests, eradicate weeds, as long as you find pests on the leaves, you can immediately encounter pesticides, you need to ensure sufficient sunshine.

When planting cotton, it is necessary to choose the weather and soil for planting, renovate the soil in the soil, and add more pesticides to the soil.

Our living environment is always in a constantly changing environment, and we all know that our country is a country with many origins in agriculture, many dynasties in our country are based on crops as the main economy, with the development of social economy, people's requirements for high-quality cotton are very high, and the demand for cotton in the market is also very large. This allows many farmers to plant cotton, but when planting cotton, we will inevitably have a variety of situations, and a variety of problems, including when planting cotton, we will encounter a variety of red spiders and aphids, so when we encounter this situation, how should we deal with it. <

First of all, it has to be said that these pests are still very harmful to cotton, when the weather is hot, then the number of spiders will be easy, to do a good job in spider control in time, the focus of the work of eliminating spiders should be on the first stage of spider occurrence, because at this time it is relatively easy to eliminate spiders, and it is not easy, for the choice of drugs, we can choose 15% of the sweeping mites and so on these drugs, we must note that in the stage of the house, It must be in the primary stage, because the manpower and material resources consumed during this period are relatively small, and the effect he has achieved is also very significant. <

In addition, for aphids, it is also a very major pest that harms cotton at present, aphids can eat plants, and the impact on cotton seedlings is very large, so we should eliminate it in a more reasonable way, we can choose to use 10% aphid lice net this drug to eliminate him. For aphids, we should find them as soon as possible, which is of great significance for our control measures and the choice of drugs, cotton is a very necessary product for our lives, but a good cotton is planted, it takes a lot of manpower and material resources, so we should know how to cherish. <

In fact, if you want to prevent and control it, you should spray pesticides regularly, and weeding should be done regularly, so as to prevent the cotton from growing some comrades to reduce the yield of cotton.

The best way to control it is to water and fertilize it regularly, and spray pesticides regularly, so that it can achieve a good method and make the cotton grow strong.

First of all, we must choose varieties with strong resistance to diseases and pests, and secondly, spray drug control.

1. Agricultural prevention and control.

1. The implementation of autumn and winter irrigation can greatly reduce the overwintering survival base of red spiders and reduce the harm of the second year.

2. Eradicate weeds at the edge of the field.

3. Plant alfalfa at the edge of the field.

4. Watering in time to increase the humidity in the field can inhibit the occurrence of red spiders.

2. Biological control.

1. Protect and utilize natural enemies.

2. Use predatory mites to treat insects with insects.

3. Chemical control.

In the chemical control of red spiders, the wheel is high, professional acaricides should be selected, and broad-spectrum insecticides are strictly prohibited, so as not to kill natural enemies, destroy the ecological balance of cotton fields, and make the rest of the world lose control of pests. At the same time, it should be noted that one pesticide variety should not be used each time, and different types of acaricides should be used in rotation, so as not to develop resistance to red spiders and be difficult to control.

Timely weed removal reduces the number of eggs by reducing the hiding spots of spider mites.

Physical Methods:

Weed removal: Remove weeds in time to reduce the hiding spots of red spider mites and reduce the number of eggs.

Control the environment: Because red spiders like a high temperature and dry living environment, it is necessary to cool down properly and water in time.

Increase natural enemies: There are many natural enemies of red spiders, such as Chinese lacewings, mite-eating ladybugs, etc. Appropriately increasing the number of its natural enemies will help the biological insecticide, green and healthy. But when choosing natural enemies, it is necessary to choose insects that do not conflict with crops, so as not to cause secondary damage.

Before the jujube tree germinates and the jujube spider is about to go up to the tree (about late April), a closed viscose ring can be applied to the trunk of the tree with a non-toxic and non-dry sticky shellac, the ring width is about 1 cm, and it can be applied again in about 2 months to prevent the jujube red spider from transferring to the tree, and the effect can reach more than 95%.

Use pesticides on time, pay attention to the surrounding environment, and ensure that the environment is clean and hygienic, so that better prevention and control can be carried out.

In daily life, it is common for wheat spiders to appear, but if you want to control it, how can you do it? Did you know?

In daily life, there are many farmers who often have red spiders when planting wheat, some of which are very serious, and some of which are not serious, but in daily life, the most serious thing I have ever seen is that those red spiders will make the wheat die directly, so do you know what to do to prevent this phenomenon?

If we want to prevent and control this phenomenon, then we must choose the soil is more fertile and wide land when planting, and we must use farmhouse fertilizer when fertilizing, do not use the fertilizer that buys Qingzheng outside, and often water the plants more, to prevent the occurrence of pests and diseases, if there is a situation of small insects, then we must spray the powder in time, but if the situation of red spiders is very serious, then you can spray some pesticides, So I think if we can do these things well, we will be able to control spider mites, and the effect will be very good.

In daily life, if there are often red spiders in wheat, it will affect the growth of wheat, and it will also affect the quality of wheat, if the situation is very serious, it will also make the wheat die directly, so I think if you can do the above aspects, you will be able to make the wheat grow very well, and the quality of the wheat will become better, and even the yield of wheat will become very large, but I think this is a very normal phenomenon, because those control methods are indeed very good, So these warn some people that if they want to grow wheat well, they must do a good job in those aspects, and never bring unnecessary trouble to themselves.

In ordinary life, if you want to prevent the appearance of red spiders, I think you can often spray some pesticides on wheat, but when spraying pesticides, you must have a small amount, never overdose, because if you spray too much, it will affect the growth of wheat, so you must pay attention to this problem.

Choose wheat varieties that are resistant to diseases and insects, and then control the soil temperature not to be too high, water more, increase the light time, and then spray with pesticides.

It is necessary to spray some pesticides in the wheat when planting, or Fu Jing should be exposed to the sun more when the hall is bent, and the planting distance between the stuffy ones should be increased when planting.

You should choose the drug of the red spider, and you should pre-prevent the mountain stove in advance when you tease the spike, and you must increase the dose of the drug, so that you can completely clean up the red spider.

The first thing to do is to clean up the surrounding weeds, as these weeds may be infested with a large number of spider mites or some eggs. Some people do not eradicate or treat the surrounding weeds when preventing spider mites, and it is very likely that after we prevent spider mites in wheat, red spiders will appear again in a few days. If we do not find the root cause, it will not do much to treat the symptoms.

Generally speaking, the damage of red spider is that there are some weeds, red spider insects, and some insect eggs, which will cause damage to the wheat in the field after hatching. <>

We also need to understand one of the habits of the spider spider, some spider spiders will ovulate on this clod of soil, we can choose to use the way of ploughing to bury these eggs in the soil and crush them. This method should often be used before winter, because the hatching of insects often begins to come out in the spring period, and turning the soil in winter can effectively crush a lot of red spiders, so as to effectively avoid the flood of red spiders. <>

Of course, some pesticides can also be used for spraying control. There are many pesticides to kill red spiders, for example, this avermectin can effectively kill red spiders, we can spray these eggs, we can also spray these red spiders. It's just that pesticide spraying once can't fully meet the standard, and the second or third strengthening is needed to effectively kill red spiders.

It is also better to kill red spiders in spring, because red spiders are clustered, and spraying with pesticides when they gather can often achieve twice the result with half the effort. The gathering is generally in the morning, and there are three or four o'clock in the afternoon, and a gathering will be formed during this time period, so when we spray pesticides for control, we can choose to be at 3:00 p.m. 4:00

00 This time period, for some of the people who have gathered, it is good to spray them directly.

You can use watering, so that you can prevent red spiders, and red spiders will not continue to stay here if you water, and you can also use pesticides to choose pesticides that can eliminate red spiders, and then spray, so that you can prevent red spiders, and you can also use fertilizers, and you can effectively eliminate red spiders by choosing the right fertilizer, these methods are all possible, and you can choose a suitable method to carry out.

The method of prevention and control is to fertilize the land when planting wheat, to disinfect the seeds of wheat, to disinfect the soil, to dress the wheat seeds, and to sprinkle some pesticides when planting, so as to prevent wheat spider mites.

It can be controlled with pesticides, or by using agricultural methods, or by using chemical control methods, and can be irrigated, or the situation can be observed in advance, and some pesticides can also be sprayed in advance.

To water in time, and must ensure the fertility of the soil, you can also choose chemical control methods, such as pesticides, be sure to pay attention to the appropriate concentration.

It is necessary to prevent and control pests and diseases in advance, turn the soil in time, choose the right varieties for planting, pay attention to ventilation, and also pay attention to the density of planting.