What are the four points of pesticide wintering?

Do not pile up randomly, pay attention to sealing, and can not be placed indoors, pay attention to inspection, can not be chaotic storage, these requirements will need to be remembered.

Pay attention to check the labels on the bottles, pay attention to separate storage, do not mix and put together, pay attention not to store the remaining fish and food at the same time, and do not pile them up randomly.

First of all, don't pile it up randomly, different pesticides must not be mixed together, and then you must tighten all the bottle caps, and then don't put them together with fertilizers, and at the same time you must observe and check in time, and you must pay attention to ventilation.

Does the low temperature in autumn and winter have an impact on pesticides?

Now that we have entered the winter, many friends have felt the rapid drop in temperature, and they can also see that there are crops planted by farmers in the field.

The first point is that if the temperature is too low, the drug will not work well. Low temperature will affect the efficacy of the drug and reduce the efficacy of the drug. Low temperatures can reduce efficacy, resulting in poor efficacy.

The temperature decreases, and the low temperature has no obvious effect on pesticide pest control. Choose the right insecticide for low-temperature applications. Under normal conditions, gastric toxins and contact killers are less affected by temperature, and endotracheal and fumigants are more affected by temperature.

Low temperature will significantly affect the insecticidal effect of pesticides such as dichloride.

The second point is that spraying pesticides in cold weather can also have the opposite effect. If the temperature is too low, the resistance of wheat itself will be relatively weakened. It is easy to cause drug damage after spraying.

The higher the temperature, the lower the chemical activity of the pesticide, the lower the absorption and utilization rate of plant stomata and cells, and the application of pesticides in the low temperature season should reasonably increase the dose and increase the concentration of the solution, but the concentration should not be too high, so as not to cause drug damage.

The third point is that the degradation rate of pesticides is slower in the low temperature season, and there are potential safety hazards in the use of pesticides compared to the remaining time of the crop. Therefore, the number of days from the last application of pesticides to harvest must be appropriately extended to ensure safe consumption of food. Some pesticides are highly affected by temperature, and when the temperature is cold, the effectiveness of pest control is weakened.

When the temperature is relatively low, some pesticides can still play a normal role in control.

Fourth, the chemical activity of pesticides decreases as the temperature decreases. When applying pesticides in the low temperature season, the dosage must be increased scientifically and reasonably, and the concentration of the solution must be increased, but the concentration should not be too high. When temperatures are warmer, crop pests increase their range of motion and respiration intensity, as well as feed intake.

Spraying during this period is beneficial to improve the control effect. When selecting pesticides to control pests and diseases, pesticides that are less affected by temperature should be selected as much as possible.

There are also some misunderstandings about the use of pesticides in winter, which need to be paid attention to, and when we choose pesticides in winter, do not think that the higher the concentration, the better. Generally speaking, there will be a matching ratio on the instructions of pesticides, we can use pesticides according to this ratio, if we increase this concentration without authorization, then it will only increase our economic cost, after all, the current price of pesticides is not cheap, and the effect of increasing the concentration is not very obvious, so it will naturally outweigh the losses, so it is not worth advocating. <>

When using pesticides in winter, pay attention to this time period of use. If we choose to spray pesticides at this time, the effect will not be particularly obvious, after all, pesticides are dissolved in water, if we have blended well, the pesticide is sprayed on the crop, and the crop has dew, and the concentration of the pesticide will be further diluted, which will affect the efficacy of the pesticide, so spraying pesticides must wait until the dew is dry before spraying. <>

Because of the climate, when pesticides are used in winter, the degradation rate of pesticides is often very slow, so we need to strengthen this safety cycle. In spring and autumn, we spray pesticide pesticide residues for a long time, but in winter we have to extend it for 3 to 5 days, or even for about a week, so as to effectively ensure food safety. Of course, if you are using a high-efficiency, low-toxicity and residue-free pesticide, then this can be ignored.

The winter solstice uses pesticides, and you must stir it evenly when pairing, don't think that the weather is too cold and don't want to stir, this lazy really can't steal. If the pesticide is not stirred evenly, then there will be a situation when spraying, that is, some places can effectively kill some germs or insects, but in some places there will be incomplete killing, often causing harm to crops, so we should stir evenly.

When using pesticides in winter, we should pay attention to the air, temperature, light, time, moisture and other issues, so that we can correctly apply pesticides to crops.

Be sure to pay attention to the ratio of pesticides, not too strong, not too light, otherwise it will have an impact on the efficacy, and it is best to choose a higher temperature at noon at the time of spraying, which is easier to exert the medicinal properties.

The problem that needs to be paid attention to when using agriculture in winter is that we must not hurt our crops, because if we hurt our crops, it will bring very large losses to ourselves, and these gains outweigh the losses.

At present, growers in many places in our country have adopted the greenhouse model for cultivation work, and in the process of greenhouse vegetable planting, there are many precautions for pesticide spraying, it is winter, if you do not master the pesticide spraying skills, it is not able to play too much effect. Let's learn the precautions for spraying pesticides on vegetables in greenhouses in winter.

1. It is not advisable to prepare pesticides with live water at will, because there are many impurities in the live water, so if it is prepared with live water, it will not only block the nozzle of the sprayer, but also destroy the suspension of the liquid medicine and produce precipitation;

Second, it is not advisable to add excessive water to prepare pesticides However, when preparing, it should also be noted that excessive water can not be added, which will lead to a reduction in the efficacy of pesticides, which will not only make the efficacy of pesticides ineffective, but also can not kill pests, and even directly lead to the loss of pesticides, causing environmental pollution problems, and the impact is serious.

Third, it is not appropriate to increase the use of pesticides before being approved for production and sales, will go through strict field efficacy tests to determine the reasonable dosage, medication time, pesticide application times and other actual use data, therefore, farmers in the use of pesticides, in strict accordance with the packaging instructions, must not increase the amount of drugs at will, counterproductive;

Fourth, it is not suitable to spray pesticides in the flowering period of crops in the flowering period, the ability to resist stress is weak, and pesticide damage is easy to occur, so it can not be sprayed in the flowering period of crops;

Fifth, it is not advisable to spray pesticides before harvesting, because the pesticides themselves will have certain toxicity, the residue period of high-efficiency and highly toxic pesticides is about 60 days, and the residue period of high-efficiency and low-toxicity pesticides is about 15 days; Therefore, before the crops are harvested, it is necessary to pay attention to avoiding pesticide application to avoid poisoning!

Sixth, it is not advisable to spray from top to bottom because the liquid medicine that falls between the leaves of the plant to the front of the leaves is usually more than the back, so when spraying, the first thing should be sprayed from the lower leaves of the vegetables, and pay attention to the nozzle upwards, focusing on spraying the bottom of the leaves, and for the front of the leaves, there is no need to focus on spraying, only in this way can it have a good control effect.

To sum up, it is the precautions when spraying pesticides in vegetable greenhouses, we must not understand the use of drugs at will, if there is no good treatment of the drug on the impact of vegetables is great.

What are the six precautions for applying pesticides in winter? When applying chemical pesticides in winter, in addition to choosing the right pesticides, we should also pay attention to the following six points. 1. Choose a sunny day and a high temperature period to take medication:

Because the pest in the winter when the temperature is high, its feeding and respiration intensity are greater than in cold weather, the liquid medicine is sprayed on the insect body, and there are many drugs that are brought to the body, which is conducive to playing a toxic role. 2. Increase the dosage appropriately: the lethal dose of pesticides for pests is not constant.

The lower the temperature at room temperature, the lower the lethality of the pest, and the pest can not die after ingesting the medicine. 3. Reasonable selection of pesticides suitable for winter application: under normal circumstances, gastric poisons and contact killers are less affected by temperature, and systemic agents and fumigants are more affected by temperature.

4. Preferential use of soil pesticides: soil pesticides are cheap, and the disadvantage is that they are easy to produce pesticide damage. However, fruit trees are highly resistant to pesticides during the dormant period in winter, and pesticides such as Bordeaux liquid and stone sulfur mixture are used to control pests, which is both economical and effective.

5. Extend the safety interval of crops: When pesticides are applied in winter, the degradation rate of pesticides slows down, and the residual period of pesticides in crops is also relatively prolonged. 6. Pay attention to the water of each bucket of diluted medicinal solution

Add 10 grams of penetrant or acidic "laundry detergent" as a binder. However, it should not be added when applying pesticides to vegetables.

The six precautions are to extend the safety interval of crops, increase the dosage appropriately, choose sunny days and high temperature periods, give priority to the use of soil pesticides, dilute the water of each barrel, and select pesticides suitable for winter application.

These six things to pay attention to are, first, choose to add at noon, second, to dilute with water, third, can be used with herbicides, fourth, control the temperature, fifth, control the frequency of use, sixth, observe the effect.

The first is to choose the medicine during the sunny day and high temperature period.

The second is to increase the dosage appropriately.

The third is to reasonably select pesticides suitable for winter application.

Fourth, it is necessary to extend the safe isolation period of drugs.

Fifth, pay attention to each bucket of diluted medicine solution water.

Sixth, pay attention to standing upwind and spraying.

Growing crops and spraying pesticides is normal. However, accidents due to pesticide spraying occur every year, especially during the winter months. If you are not careful, the pests, diseases and weeds in the field will not be able to **, and there will be problems with the crops, resulting in reduced yields.

Choose the right insecticide. There are some pesticides on the market that do not reduce their effectiveness at low temperatures, some fail at low temperatures, and some suffer from drug damage at low temperatures.

When preparing to spray pesticides, be aware of the weather conditions for the next few days. If the temperature is low, choose a drug that will not be greatly affected by the effect at low temperatures. In cold weather, the amount of chemical solution absorbed by diseases, insects and weeds will be relatively reduced.

At this time, the concentration of some medicinal solutions can be appropriately increased to achieve the purpose of death. In the cold weather of winter, the evaporation of the potion will also become relatively slow.

For pesticide varieties with a long residue period and early planting in the next season, caution should be exercised, especially herbicides, so as not to cause herbicide harm to low crops. During the cold winter months, crops and weeds are dormant or semi-dormant and have low capacity for pesticide absorption and utilization. Pest activity is very rare.

Pests usually hibernate and lose their ability to harm. For crops grown in greenhouses, due to the high temperature in the greenhouse, pesticides can be sprayed if insecticide, disease prevention, and nutrition supplementation are needed, and the impact is not great. However, it should be noted that the greenhouse should be ventilated from time to time.

Factors such as the active ingredients, additives, and processing technology of pesticides will vary, but if the temperature is too high or too low, such as a high temperature above 35 degrees Celsius or a low temperature below 5 degrees, the use of pesticides is not recommended. Excessive pesticide residues in agricultural products not only affect food quality and safety, consumer health, but also affect the export of agricultural products and even the development of the agricultural industry. Beijing Strawberry Slices has had a significant impact on the production and sales of strawberries in China, affecting consumers and causing huge losses to farmers.

When using pesticides in winter, we must pay attention to the setting of temperature, do not use pesticides at low temperatures, which will affect the effect of pesticides, and should also pay attention to the proportion and dosage of pesticides, do not use pesticides excessively, otherwise it will affect the yield.

In winter, we must pay attention to the temperature when applying pesticides, if the temperature is particularly low, the effect of pesticides will be very poor, and we should also pay attention to the emission when applying pesticides in winter, the temperature is best to be about 25 degrees, after spraying pesticides, it is best to water less, but also stay in a confined space for a period of time.

It is necessary to pay attention to the shelf life of the medicine, to pay attention to whether the medicine is suitable for use, to pay attention to the mixing ratio of the medicine, to pay attention not to spray on people, and to pay attention to temperature and weather.

Be sure to pay attention to dilution, good protection, so as to avoid injury, and spray pesticides must be lower, so that the spray is more even, try not to choose to spray pesticides in windy weather or before rain.

Be sure to protect your body, and be sure to dilute pesticides when using them, and also use them in windless weather.

To protect personal safety, be sure to wear protective clothing, masks, hats, gloves, and when using pesticides, you must choose at 10 o'clock in the morning, when the temperature is more suitable, and you should choose the right agent according to the variety of crops.

Pesticides will also be carried out in winter, after all, there will be some pests and diseases in each season, and we must do a good job of corresponding prevention. <>

The first point is that we need to add water when we use pesticides, and we can't add too much water, but according to its proportion.

Now the pesticides produced by different manufacturers of concentrated pesticides, their dilution degree is not the same, we generally use some water when sprinkling pesticides. At this time, we should strictly follow the manufacturer's instructions for proportional blending, some are 1:100, then we follow 1:

100, we can't increase the amount of this diluted water without permission, so as not to affect the efficacy of this medicine.

Second, we should not increase the concentration of pesticides to avoid pesticide damage. <>

There are some people in life who are clever and think that as long as my concentration is higher, then these weeds and pests can be killed faster, but this is not right. Pesticides are accurately calculated to have a lethal effect on some weeds and some insects, but if our concentration is too high, it will affect our crops, and the pesticide damage will outweigh the losses.

Number 3: Try to avoid rainy weather, so that the effect will be better.

Pesticides are soluble in water, if we just encounter rain when we sprinkle pesticides, then it will be troublesome, we have to stop, and after the rain clears, the dew is dripping, then we sprinkle pesticides, if there is still a lot of water residue on this crop, at this time we spray pesticides will cause the concentration of pesticides to be diluted, which will affect the effect of this pesticide. <>

Fourth, don't spray pesticides when you're about to harvest.

Pesticides will have some pesticide residues, the residue period is a week, some are three days, some are 15 days, we have to judge the use according to the type of pesticides, if you are about to pick, then do not spray pesticides.