What are the tips for applying pesticides in the rainy season?

What are the tips for applying pesticides in the rainy season? Generally, we choose to spray on a sunny day. If there is a strong wind, maybe half of the pesticide will be blown away.

1. The amount of dilution of repeated spraying of pesticides depends on the specific product and rainfall. With each continuous rainfall, the effectiveness of pesticides becomes less and less. The next day of rain will not completely eliminate the pesticide effect, but it will make the pesticide less effective.

Heavy rainfall in a short period of time can cause a greater loss of pesticide potency than slow drizzle that lasts for several hours.

Although there are also some granular pesticides that actually work better in the rain and are activated by the rain to soak into the ground. However, after a few heavy rains, most pesticide sprays become very thin. During the rainy season, repeated spraying is sometimes used to ensure the effectiveness of pesticides, and the more rain it gets, the faster the pesticide can be resprayed.

2. Choose pesticides with good rain toleranceSome pesticides work very quickly, can penetrate plant leaves in a very short time, and can work on any kind of growing plant. In this case, when the rain dilutes the pesticide, the fast-acting pesticide has solved the problem, so the rain does not have a significant impact on it. Especially during the rainy season, we would never want to use a pesticide that would take weeks to work.

There are other types of pesticides that can achieve a waterproof effect.

3. Pay attention to weather changes Before the rainy season comes, you should notice the weather changes and spray pesticides earlier and more timely.

In addition, it should be noted that the application of pesticides during the rainy season is more likely to cause soil and water pollution, and when it rains, most of the pesticides do not go mainly by immersion into the ground or down the slope into streams. This situation is exacerbated when there is a large amount of rain in a short period of time.

1. Skillfully choose the time of pesticide application, check the weather forecast every day in the rainy season, seize the rainfall gap to apply pesticides, and always pay attention to weather changes when spraying, and adapt to changes. Generally, the effect of pesticide application after rain is better, so it can be selected according to the weather conditions and the actual situation to choose a suitable time period for medication to improve the prevention and control effect. 2. Select the type of agent, fast-acting pesticide.

Fast-acting pesticides have a strong contact killing and fumigation effect, and pests can be killed about 2 hours after application, which can effectively avoid reducing the efficacy due to rainwater washing.

The technique is to spray before it rains, it is best to spray 24 hours before it rains, so that it will not affect the efficacy, and it is necessary to pay attention to the change of weather, and then spray when there is no rain, and the ground should not be too wet when spraying, if it is too wet, there is no way to spray.

It is necessary to avoid rainy days, and when spraying pesticides, you must pay attention to the weather forecast, pay attention to the right temperature and humidity, and then you must pay attention to the appropriate dosage, and you must pay attention to the efficacy.

When using pesticides, you also need to look at the weather, you can't eat pesticides on rainy days, and if it's on rainy days, you can choose some pesticides with strong abusive desires, which can be sprayed so that all the land can be contacted.

Rainfall during the rainy season can severely reduce the effectiveness of pesticides.

If the pests and diseases are serious and drugs are urgently needed, attention should be paid to the selection of pesticides, and the selection of internal, fast-acting, rain-resistant pesticides, and microbial pesticides should be used to avoid losing their efficacy due to rainfall. Because inhaled pesticides can be absorbed by crops through their roots, stems, leaves, etc., and work in a short time. Check the weather forecast every day during the rainy season.

Stay on top of rainfall and spray pesticides. When spraying, always be mindful of weather changes and be flexible. In general, the effect of applying pesticides after rain is good. Therefore, the appropriate time period can be selected according to the weather conditions and actual situation to improve the control effect.

After spraying pesticides, the effectiveness of pesticides will be reduced in rainy days. After spraying the plant for 2 to 4 hours to take effect, the pesticide components have not been completely absorbed by the plant, and some remain on the surface of the plant. If it is washed by rain, the pesticide will be washed away.

If it rains 1 day after spraying, the effect has already taken effect, and the rain will not have any effect.

During the rainy season, pay attention to changing the application method of pesticides appropriately. For example, when using systemic pesticides, pests are mixed into fine soil before they occur, and then applied to the soil near the crops, allowing the plants to absorb the pesticide and thus cause the pests to absorb the pests and die, this method is one of the more commonly used methods in the rainy season. At the same time, according to the activity law of pests, the application time should be reasonably selected.

For example, for some nocturnal pests, it should be used at night, while sunrise pests should be used in the morning.

In general, rain immediately after the injection has a great impact on the efficacy, and most of them need to be sprayed. If it rains 1-4 hours after spraying, it depends on the amount of rainfall and the pesticide composition used, generally after spraying, use pesticides with strong internal permeability, quick effect, and rainwater erosion resistance for 2-3 hours, which has almost no effect on the efficacy. There is rain within 4 hours, and the rainfall is small, which basically does not affect the prevention and control effect.

For some microbial active pesticides, such as Beauveria bassiana, Jinggangmycin.

In rainy days, it can give full play to the role of sterilization and stool insecticide, but it should not be used when the rainfall is too large.

Clause. First, pay attention to the weather, choose the right time, first.

Second, choose the appropriate agent, section.

3. Add adhesives and auxiliary synergists to the liquid medicine.

Fourth, appropriately increase the concentration of liquid medicine, first.

Fifth, improve the method of pesticide application.

Systemic pesticides can enter the plant through the roots, stems, leaves, etc., and are transmitted to other parts.

According to the performance of the agent, the appropriate application method is selected, such as systemic insecticide, and the root zone application method can avoid rainwater erosion and prevent pesticide loss; According to the occurrence and activity of pests and diseases, the appropriate application method is adopted, and the pests that feed at night, such as the rice leaf roller borer, are selected to be applied around dusk, so that the pesticide quickly penetrates into the rice plant tissue, and the pests die in 2-3 hours.

Use rain-tolerant pesticides: such as Bordeaux liquid, basic copper sulfate, copper pinesinate, Jinggangmycin, chlorpyrifos, etc., 2-3 hours after application, even if it encounters moderate rain, it will not affect the effect of application.

What are the precautions for applying pesticides in the rainy season? 1. What is the role of pesticides used in crops? For farmers, good crops mean a good harvest, after the harvest is good, not only can improve the economic situation, but also can eat high-quality food, so many farmers in the process of planting will pay special attention to the growth of crops, the application of pesticides in the process of crop growth is an indispensable link, because many crops in the process of growth will appear some pests and diseases, if you do not use pesticides to kill these pests and diseases, It is likely to lead to a reduction in crop yield or even a dead harvest, which is a very big loss for farmers, so every year when the crops grow rapidly, farmers will always apply pesticides to their crops, and the crops after the pesticide will be free from pests and diseases, and will grow more lush, and will also increase in yield in the future.

2. When is the best effect of pesticides? Pesticides in the planting process of crops, the role is very important, so in order to make crops grow better, it is particularly important to choose the right time to laugh to pesticides on crops, under normal circumstances, the time to play pesticides is in the spring when all things are recovering, at this time there will be more pests and diseases, so in general, in the spring, pests and diseases just appeared, it is necessary to apply pesticides to crops, this time is often the best effect, can kill the vast majority of pests and diseases, Once the best time is missed, it is likely to reduce crop yields, but for some special crops, it may be necessary to apply pesticides when they are about to mature, and we must pay attention to the concentration of pesticides at this time, because excessive pesticides will not only cause certain damage to crops, but also may endanger people's health.

3. What are the precautions for applying pesticides in the rainy season? For farmers and friends, when pesticides are applied to crops, the most headache is to encounter the rainy season, because the role of pesticides in the rainy season will be greatly reduced, at this time if you want to make pesticides play the greatest role, you must choose, then the weather is better, for example, there are two or three consecutive days of sunny or cloudy days, this time you can go to pesticides in time, under normal circumstances, one to two days of pesticides can play a full role, killing pests and diseases, Therefore, when applying pesticides in the rainy season, it is necessary to avoid rain, so that it will not be wasted, and it will not have any effect after the pesticide is applied.

First, we must pay attention to the choice of time, and we must pay attention to the ways and means of judging and staring, and we must pretend or pay attention to the norms. Be sure to choose some fast-acting pesticides, be sure to pay attention to safety, be sure to wear protective clothing when spraying pesticides, don't expose ** to the outside, don't use your hands to contact your eyes and **.

The precautions are, do not use pesticides before the rain, keep the pesticides in a relatively bright and dry place, do not put the pesticides and their Papita food together, when using pesticides, you must pay attention to your own protection, and protect your eyes.

At this time, it is necessary to pay attention to the concentration of pesticides, because excessive pesticides in the limb state will not only cause certain damage to crops, but also may endanger people's health.

First of all, it is necessary to avoid the time when the rain is relatively large, and in difficult times, we must pay attention to the appropriate distance, and then we also need to find suitable agriculture according to different crops, and then we must do a good job of ventilation and watering, and then we also need to wear protective clothing.

In summer and autumn, high temperatures and wet rainfall, especially in South Ender, there are many Sakura typhoons and heavy rains, which pose certain obstacles to the use of pesticides to control (eliminate) crop diseases, insects and weeds. In order to give full play to the effectiveness of the game and effectively control and eliminate diseases, pests and weeds, it is necessary to realize the scientific and rational use of drugs.

Insecticides can be killed after several hours of application to avoid the effects of rain on their efficacy. Diphenyl herbicides, such as ** and tiger tail, cannot be used in hot and dry summers. At this time, if it is used on cotton fields and vegetables, the leaves will bend upwards to form deformed cap-like leaves, and the sweet corn will be partially necrotic and covered with dried leaves.

Some biopesticides (e.g., BT insecticides) do not reduce their effectiveness in light rain after 4 hours of application. According to tests conducted by the Wenzhou Academy of Agricultural Sciences, herbicides such as butachlor, acetochlor and damycin are sprayed on the plant grounds before planting.

<> during the rainy season, select pesticides by inhalation, mix the soil, and apply them to the surface of footbridges before infestations occur. For example, arthrophthalds in tomato roots, cucumbers and celery are controlled using Niandong granules (carbofuran), and chemicals are mixed with sediment to apply to the soil layer of the plant. Depending on the crop and its control object and the pesticide variety, drugs are used to avoid delays in the use of drugs for the prevention of diseases and insects.

In addition, in summer and autumn, we should be careful not to use high-temperature drugs at noon on sunny days, in order to avoid damage to the harvest and poisoning of humans and animals.

Systemic function, such as carbendazim, diluted oxazole E, methyltobuzin, etc., as well as protective agents, such as Dasheng, mancozeb, etc. The use of endophytic fungicides removes latent bacteria in the early stages of young fruits and leaves. But it is also ideal for spraying during the flood season, as the limestone is highly adhesive and resistant to rain erosion.

It must be done on a sunny day, the spraying must be atomized, and the spraying cloth must be uniform and meticulous to ensure quality.

Fungicides are sprayed on the surface of plants before they are infected by pathogens, providing a protective effect. Even if the pathogen is reinfected, it will not infect the plant. Highly effective insecticides have a strong reputation for contact and fumigation.

It can kill pests about two hours after application, and effectively avoid reducing the effectiveness of pesticides due to rainwater erosion.

First of all, it is necessary to grasp the time, and then we must choose to apply pesticides when it does not rain, and at the same time, we should also choose pesticides with good permeability, and then we must choose the right rock fiber spraying coarse imitation position, and then we also need to strengthen management.

In the rainy season, pesticides should be used after rain or if there is no rain for the next 2 or 3 days.

You should choose the right pesticides, but also choose some antibacterial agents, spray pesticides regularly, and also spray pesticides after rain.

Grain crops are more diseased in hot weather, but summer is also a rainy season, and these diseases are more rampant on rainy days. In the rainy season, it is necessary to pay attention to these two aspects for the use of chemical fertilizers, understand the weather changes in advance, and grasp the regularity of food crops and diseases.

Nowadays, there are too many ways to grasp the weather changes, and with the popularization of smart devices, there are also local TV programs that can grasp the weather changes, and you need to be fully prepared before the rain.

More precipitation in the rainy season will significantly reduce the impact of chemical fertilizers on winter.

Control effect of Cordyceps. Moreover, Cordyceps sinensis will be flooded, and at this time, only the reasonable application of chemical fertilizers can maintain the growth and development of food crops. Therefore, the villagers should not use or abuse chemical fertilizers indiscriminately. Generally speaking, there are three criteria to grasp:

Three criteria: choose the right medicine, use the right amount, and use the concept of time.

Here's how:

The time for general food crops to digest and absorb chemical fertilizers is 12 hours, and they can pay more attention to the climate, weather forecasts, etc., so they should be fully prepared in advance and have a certain degree of vigilance. Naturally, weather forecasts may not be accurate as well. At this time, you can also pay more attention to when there are small insects in your field that will rush to the food crops, and spray chemical fertilizers early.

Spraying pesticides the night before the morning theme event is available.

As mentioned earlier, many chemical fertilizers need to be watched for 12 hours before they can be thoroughly digested and absorbed. In many cases, due to the slow power of chemical fertilizers, it will cause damage to crops. At this moment, we can apply some chemical fertilizers with fast medicinal power, such as albutin quick, deltamethrin, and lesben anti-carb, which are fast-acting and powerful, and can kill large-scale small insects in a short period of time.

Choose fertilizers that are resistant to precipitation erosion:

The selection of chemical fertilizers is to choose chemical fertilizers that are resistant to precipitation erosion, such as green depot, agricultural chain cracking and mycin, Jinggangmycin, which can cause a film in 3 hours, which can avoid the outflow of medicinal power, if the adhesion and permeability of chemical fertilizers are improved, even if it rains, it can also give full play to the medicinal power, and some mulberry sap and infiltrating agents can be added. Soap powder can also be added to improve the adhesion of chemical fertilizers. In turn, the chemical power of the fertilizer on the crop is maintained.

It can also add human water-soluble adhesives to wettable powder or mixed liquid, such as animal bone glue, shellac, waste honey, some adhesives, after taking the drug, and other water evaporation, can be firmly adhered to the surface layer of the spraying target in powder form, so as to maintain the precipitation to the destruction of the medicinal force.

For the above drugs are for reference only, the detailed use method can consult the person who sells fertilizers, or the authoritative expert who takes the medicine, and must be symptomatic**.