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Crops in the summer high temperature pests and diseases, but summer is also the rainy season, when it rains, those pests and diseases are more rampant, but for farmers and friends when it rains, they can not use pesticides, see in the eyes, anxious in the heart.
In the rainy season, we should pay attention to these two points for pesticide application, know the weather changes in advance, and understand the laws of crops and pests and diseases.
Heavy rain in the rainy season will seriously reduce the effectiveness of pesticides on Cordyceps. And Cordyceps will be overflowing, and at this time, only the correct use of pesticides can protect the growth of crops. Therefore, farmers should not abuse or use pesticides indiscriminately. In general, there are three principles to be mastered:
Three principles Choose the right medicine.
Use the right amount. Use the right time.
The method is as follows: the general time for crops to absorb pesticides is 12 hours, you can pay more attention to the weather, weather forecast, etc., prepare in advance, and take precautions. Of course, weather forecasts may not be accurate.
At this time, you can pay more attention to what insects in your field will come to the crops at what time, and spray pesticides in advance. Pesticides can be sprayed the night before morning activities.
As mentioned earlier, many pesticides take up to 12 hours before they can be fully absorbed. In many cases, because pesticides are slow to act, they will cause damage to crops. At this time, we can use some fast-acting pesticides, such as albutin, deltamethrin, lesben anti-carb, etc., which are fast and effective, and can kill a large area of insects in a short period of time.
Choose rain-resistant pesticides to choose pesticides that are resistant to rain-washout, such as Green Depot, Bordeaux liquid, Jinggangmycin, etc., they can produce a film in about 3 hours, which can prevent the loss of efficacy, if you increase the adhesion and permeability of pesticides, even if it rains, it can also play a better role, you can add some soaphorn liquid, penetrant and so on. Laundry detergent can also be added to increase the adhesion of pesticides. Thus protecting the crops on the efficacy of pesticides.
You can also add human water-soluble adhesives to wettable powder or suspension, such as various animal bone glue, gum, waste honey, etc., some adhesives, after the water volatilizes after the use of medicine, the powder particles can be firmly adhered to the surface of the pesticide object, so as to protect the rainwater from destroying the effect.
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Choose targeted pesticides, grasp the time to spray pesticides, do not spray pesticides just after rain, grasp the concentration of pesticides, and look at the weather forecast in advance.
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It is necessary to choose the appropriate time period, and pay attention to the way of spraying pesticides, observe the weather forecast, choose appropriate pesticides, and take into account the dilution of rain and moisture.
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Use strong systemic pesticides. Such as carbendazim, methyl tobuzin, fenaninin, sukenin, imidacloprid, husper, dimethyltetrachloride and other insecticides, fungicides, herbicides. Generally, after 5 hours of application, more than 80% of the active ingredients of the pesticide have been absorbed into the tissues of the crop.
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Be sure to choose the right time, and try not to spray pesticides when the rain is relatively heavy, be sure to pay attention to the concentration of pesticides, and at the same time be sure to avoid such weather, and be sure to do a good job of ventilation, and be sure to do a good job of water and fertilizer management.
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Use pesticides in the rainy season, pay attention to waterproofing in time, control temperature, use waterproof tarpaulins, and lights, through these techniques, let the drug absorb quickly.
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When applying pesticides in the rainy season, we must pay attention to the fertilization time, and also pay attention to regular spraying, and also pay attention to spraying evenly when spraying. You should also choose some pesticides with relatively safe ingredients, and you can't spray too much at one time. Attention should also be paid to the amount of pesticides used.
Be mindful of how pesticides are used.
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It should be to pay attention to the good weather in advance. When spraying pesticides, you must pay attention to the weather that does not rain for 24 or 48 hours, so. We need to read the weather forecast before we continue spraying pesticides.
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Pesticides should be applied in the interval between rainfalls, some pesticides with very good absorption, pesticides to prevent erosion, pesticides with good activity, appropriate changes in the concentration of drugs, and some additives.
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In the rainy season, we must pay attention to the timing of pesticides, do not spray pesticides on rainy days, otherwise it will affect the effect of pesticides, you should choose to apply pesticides on sunny days, pay attention to the proportion and dosage of pesticides, and pay attention to the amount of watering.
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When choosing pesticides in rainy days, you should choose some waterproof pesticides, and you should also concentrate on spraying, and you should also add some nutrient solution to it, but not too much when spraying, you can spread a layer of cover on the surface of crops.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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 **.
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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.
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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.
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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.
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Pay attention to the weather, choose the right time to apply pesticides, choose systemic properties, effectiveness, rain resistance and microbial pesticides in the rainy season, and add adhesives and auxiliary synergists to the liquid medicine.
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You can choose some pesticides that are not easy to volatile, and you should also pay attention to the amount of pesticides, and you should also pay attention to the problem of ingredients when using pesticides.
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Try not to use pesticides in rainy days, and when using pesticides, you must pay attention to the amount of pesticides, you should also do a good job of personal protection, and also do a good job of drainage, the temperature must be appropriate, and you must avoid rainy days.
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