What is the specific reason why it is not advisable to apply pesticides at noon in the high temperat

The main reason is that the temperature is too high, which will affect the effect of this insecticide. The reason why it is not recommended to spray pesticides when it is high temperature is because some insects have a certain habit, and their habit is to do activities in the morning or evening, and generally not at noon. Because the energy consumption is too large and too hot at noon, these insects are afraid of heat and do not like to be too bright, so they will naturally hide at noon, if they choose to spray pesticides at this time, the effect is often not good, because the pesticides we spray can not directly react to insects, so the effect is not good.

Too high a temperature can easily lead to the volatilization and decomposition of pesticides, which naturally cannot effectively kill some insects or fungi. If the temperature of direct sunlight is too high, the molecules in the natural air are very active, which is easy to lead to the volatilization of these pesticides, and then it will directly affect the efficacy of the drug, and the time of the effect is too short, so it can not effectively kill some germs, bacteria and insects. <>

Spraying pesticides at noon is also prone to pesticide damage. A cold and a hot is easy to appear some bad situations, after all, the temperature is too high at noon, the leaf surface of these crops are open pores, this time you need to breathe, often very vigorous, if this period of spraying pesticides will naturally affect the leaves of crops, there will be a certain reaction, easy to appear burn spots or atrophy, serious will occur pesticide damage. <>

Don't spray at noon, it's nothing more than for the sake of one's health. Because the temperature is too high and too hot at noon, it can often reach a temperature of more than 35 degrees, people are easy to sweat and can not stand it, if the spraying time is too long, it is easy to have heat stroke, so in order to avoid heat stroke, for the health of people, it is naturally not recommended to spray pesticides at noon. <>

At noon, people's capillaries and pores are open, if pesticides are sprayed on the **, or blown by the wind, it may cause these pesticides to enter our pores and affect our health.

Because it will reduce the efficacy of the liquid medicine and the poor effect of application, the molecular activity in the air is more active at the high temperature at noon, and the liquid medicine is easy to volatilize and transpirate rapidly with the air molecules.

Because the temperature is too high at noon, the evaporation of plant water is accelerated, and if the pesticide is applied at this time, it is easy to "burn seedlings".

The main reason is that it is easy to evaporate when spraying at noon, and the effect of the medicine is not particularly good, so there will be no good situation.

In the summer high temperature season, many farmers like to spray pesticides during the high temperature period at noon, thinking that the high temperature can improve the actual effect of eliminating pests, but in the end the gains outweigh the losses, and there are many disadvantages.

First, the actual effect of insect control is poor, from the perspective of the living habits of many pests, there is equivalent to a part of the insect pests in the evening or evening theme activities, such as rice borer, cotton bollworm, ground tiger, etc., and the vast majority of insects are afraid of light, afraid of high temperature, afraid of high temperature, can hide under the strong light at noon, therefore, the effect of spraying at high temperature at noon is worse than spraying at dusk.

Second, reduce the legal effect of the chemical fertilizer, generally has the characteristics of easy to volatilize and easy to dissolve, in the noon high temperature, the molecular structure of the air theme activities are more active, if sprayed at this time, the medicine is easy to evaporate and evaporate quickly with the gas molecular structure, so the drug time is shorter.

3. It is very easy to produce fertilizer damage to crops in the afternoon, when the high temperature in the afternoon, the vents of the crop skin are stretched out, the air absorption is abundant, and the water volatilization is aggravated. At this time, spraying, the powdered or strong acid and alkali ingredients in the drug are applied to the leaf stem vents of crops, which increases the power supply pressure of crops, destroys the physiological functions and organizational structure of crops, and causes "wilting" or "burning" of the young and young parts of crops.

Fourth, the health is not good in the hot summer afternoon, the low-altitude flight temperature in the field often reaches 35 above, if the wind in the field is small, in the whole process of continuous spraying, the fertilizer evaporates into the air, so that the concentration value of the molecular structure of the drug in the air increases, this is polluted by the environment and the extremely toxic gas enters the body according to the upper respiratory tract or pores, coupled with the high temperature work, the body's immunity decreases, so the syndrome of drug poisoning and the department often occurs, it is very easy to lead to life threat, and the safety accidents often occur every year due to spraying poisoning.

Therefore, in order to better improve the efficacy of chemical fertilizer to prevent pests and reduce the fertilizer damage to food crops and ensure the safety of sprayers, it is advisable to choose rainy days or sunny days to spray at dusk to prevent spraying under high temperature conditions at noon.

Crop application in the high temperature season should not be used at noon, because the temperature is high at noon, and it is easy to volatilize the liquid medicine, resulting in a reduction of the effect.

This is because in the case of high temperatures, the application of pesticides may lead to the death of crops and may cause critical conditions.

Because if it is used at noon, it will cause the pesticide to volatilize, and it will also cause the pesticide to lose its effect, so it cannot be operated at noon.