The temperature in summer is particularly high, what are the precautions when spraying pesticides?

Spraying chemical pesticides when the temperature is high and the light is strong around noon, which is highly volatile and easy to lead to poisoning of pesticide applicators; Pests mostly hide in shade and backlight, and spraying is not easy to hit the target. At the same time, pesticides decompose quickly, volatilization losses are large, and the pest control effect is not ideal. If it is a sunny day, spraying should be done after 8-10 a.m. after sunrise or after 5 p.m. before sunset, when the pest is active.

When the wind is strong, the spraying should be stopped, otherwise it will cause uneven spraying and easy to cause pesticide damage. Due to the rapid evaporation of water under the scorching sun, it is easy to cause chemical damage to plant leaves if the concentration of pesticides sprayed is too high. Avoid overfilling the bucket.

Some farmers like to pour the potion into the sprayer barrel when spraying. This is not only not conducive to spraying, but more importantly, if the sprayer cover is not closed tightly, the sprayer will spill out and stick to the body when walking in the field, which is easy to cause poisoning in the high temperature season.

Environmental conditions such as high temperature, strong light, and high humidity will cause some pesticides to cause pesticide damage to some crops. For example, in the case of high temperature and drought, spraying sulfur powder on watermelon to control the disease can easily cause serious pesticide damage. Another example is the use of sulfafen to weed soybean fields.

Under drought conditions, soybean leaves are prone to pesticide damage. Spraying chemicals at high temperatures causes water to evaporate too quickly and the liquid accumulates at the lower end of the fruit or leaf; Spraying herbicides at high temperatures can cause transpiration, or excessive humidity can lead to uneven application of chemicals on the surface of the fruit. The use of powder and emulsifiable concentrate drugs in the young fruit stage or coloring stage leads to the appearance of drug spots on the surface of the fruit; Some drugs that choose to be dispensed are unstable at high temperatures, and there is no secondary dilution, resulting in uneven mixing and distribution of liquid medicine, resulting in different concentrations causing drug harm, and in a high temperature environment, the liquid water evaporates quickly, which is equivalent to increasing the concentration of liquid medicine.

If the liquid is diluted or the concentration ratio is increased, the concentration will be too high and cause damage to the drug.

In order to improve work efficiency or enhance the control effect, even in the high temperature season in midsummer, the amount of pesticides will be increased at will, the dilution ratio of pesticides will be reduced, and the concentration of liquid medicine will be increased. Due to the rapid evaporation of water under the scorching sun, it is easy to cause chemical damage to plant leaves if the concentration of pesticides sprayed is too high. It is not suitable for using medicine when it is windy, because the wind is easy to cause the powder or droplets to fly with the wind, which can not be evenly attached to the surface of the crop, and will float on the pesticide applicator, which is easy to be poisoned.

Spraying rainwater on rainy days can directly wash away chemicals, which not only affects the effect, but also causes water pollution. The chemicals used for seed dressing are less affected by rain. Emulsifiable concentrate pesticides can form an oil film on the surface of crops and have a certain resistance to further rain erosion, while powders and wettable powders have the weakest resistance to rain erosion.

When spraying pesticides in summer, you should choose the morning or evening of cloudy days, do not choose the morning and noon when the temperature is high, and then wear the whole, wear masks and gloves to prevent pesticides from being sucked by yourself.

The concentration of the agent should be adjusted reasonably according to the change in temperature. Pay attention to the quality of the spray. Spray reasonably to prevent poisoning.

Use fast-acting systemic pesticides. The safety interval for spraying is determined according to the toxicity of the pesticide. Pay attention to the dilution factor and the tightness of the nebulizer.

Improve the utilization rate of pesticides.

1. There are two reasons not to spray at noon:

1. At noon, the temperature is extremely high, and the evaporation is fast, so it can be said that just after the fight, the back is basically dry, the waste is serious, and the effect of the medicine cannot be reached.

Second, physical health problems, spraying at noon is easy to cause heat stroke, causing danger.

2. Selection of spraying time.

The first point is to say, don't choose to take the pill at noon, so what is the best time? Here it is recommended to choose 7-9 o'clock, 16-19 o'clock, these two time periods are OK.

3. Pay attention to the contact between the medicine and **.

Wear less clothes in summer, the liquid medicine is easy to get on the **, after the sun exposure, it will cause allergies, poisoning and other symptoms, in addition, take a bath in time after the medicine.

4. Do not increase the concentration of the liquid medicine at will.

Some friends feel that the summer evaporation is fast, so they privately increase the concentration, thinking that evaporating a part of it will have little effect on the efficacy, in fact, this idea is wrong, it is easy to produce drug damage, and there is a situation of burning leaves.

Avoid spraying in the middle of the day when the high temperature and strong light, most of the pests are hiding in the shade and backlight, and the spraying is not easy to hit the target, so choose a cloudy day without rain spraying. Attention should be paid to physical protection and contact with pesticides should be avoided as much as possible.

1. Avoid spraying at noon high temperature and strong light. Spraying chemical pesticides when the temperature is high and the light is strong around noon, first, the agent is highly volatile, which is easy to cause poisoning to the applicators; Second, most of the pests are hiding in a cool backlit place, spraying is not easy to hit the target, at the same time, the pesticide decomposition is fast, volatilization loss is large, and the insect control effect is not ideal. 2. Choose sunny days, morning and evening, or cloudy days without rain.

If it is a sunny day, spray should be sprayed after 8-9 a.m. after sunrise or after 5 p.m. before sunset, when pest activity is at its peak. 3. When spraying pesticides in summer, you should pay attention to physical protection and try to avoid contact with pesticides.

The following issues should be paid attention to when spraying pesticides in summer

1.Moderate addition of modifiers to improve the actual effect:Bud rice.

Shallots. Ginger. Yam, etc., potion in plush.

It is very easy to produce liquid on the wax layer, and it is not possible to touch the surface of the stem and leaf in all directions, and modifiers such as silicone materials can be added to the agent to improve the actual effect of the agent.

2.Moderately reduce the concentration value of the agent:The medicinal power of most pesticides will increase with the rise of ambient temperature, so special attention should be paid to reducing the amount of medicine used when taking medicine at high temperatures, especially for hormone drugs, because the heavy dose is very easy to cause fertilizer damage.

Therefore, it is necessary to use the change of ambient temperature to effectively adjust the concentration value of the agent, because the water evaporates rapidly under the continuous high temperature of the scorching sun, and if the concentration value of the sprayed pesticide is too high, it is very easy to cause damage to the green plant leaves.

3.Pay attention to the quality of the sprayer:In fact, when crops are sprayed with pesticides, the pesticide fine particles that can be adhered to the surface of crop leaves are to a certain extent, and when the spraying amount is lower than a certain level, the fine particles on the leaves will condense into solid fine particles and roll down.

Outflow, in turn, reduces the amount of pesticides adhered to the leaves. The sprayer law generally stipulates that the quality of the sprayer is evenly proportioned, the penetration rate is high, and it is advisable to not drip on the surface of the moist stem, so it is stipulated that the sprayer applied to do the atomization effect is very good, reducing the consumption of the potion. At the same time, it is necessary to pay attention to the all-round spraying, most of the pests are hiding in the shade LED backlight, the spraying is not easy to hit the target, and the pesticide dissolves quickly.

The evaporation damage is large, and the actual effect of moth prevention is not ideal, so special attention should be paid when spraying pesticides.

4.Effective spraying to avoid poisoning:Preparation.

Spraying to avoid pesticide erosion of the skin, the application of volatile pesticides must pay attention to the application of protective masks, at the same time it is strictly forbidden to spray pesticides in the afternoon in the summer, summer spraying should be carried out before 9 o'clock in the morning or after 4 o'clock at noon, to prevent the generation of fertilizer. The continuous spraying time should not be too long, and when the wind speed is relatively large, the spraying should be stopped, otherwise it will lead to uneven spraying and easy to cause fertilizer damage.

5.in liquids. Wettable powder pesticides add binders:

liquids. The adhesion of wettable powder pesticides is poor, when configuring pesticides, pour 100-150 grams of soybean protein powder or soap powder into every 100kg of potion as a synergist, which can improve the actual effect of pesticide application.

6.According to the toxicity of pesticides, the safety cycle of spraying is clarified:Generally, the residual effect period of high-efficiency minimally toxic pesticides is 7-10 days.

Regardless of food crops. Fuel. Melons, vegetable crops and fruit trees should be stopped before picking to avoid human and animal poisoning.

What should I pay attention to when using pesticides in the high temperature season? Most plagues are hidden in shadows and light backgrounds, making it difficult to reach their targets. At the same time, pesticides decompose quickly and have large volatilization losses.

To control insects, spray in the rain. If the weather is clear, the effect of pesticides at sunrise or sunset will be enhanced with the increase of temperature, so attention should be paid to reducing the amount of liquid medicine when using medicine in the high temperature season, so as to produce the effect of hitting once and twice at the top. Then the time to spray pesticides at high temperature should be selected (when there is no dew) after 5 p.m. and sprayed at 8-10 p.m.

When pest activity increases, the effect is not ideal. When spraying pesticides, pay attention to body protection and try to avoid contact with pesticides. Choose fast-acting pesticides and strong internal absorption.

Choose fast-acting pesticides, such as methamphetamine, sukirin, and octyl cyanide, which have strong toxic effects. Pay attention to the mixed use of pesticides in agricultural production. Since the weather is very difficult, some friends will mix herbicides, insecticides, and fungicides.

This is not desirable.

Large doses are easy to produce, and the potency of most pesticides increases as the temperature increases. Therefore, care should be taken to reduce the amount of liquid drugs, especially hormonal drugs, when using high-temperature drugs. Large doses can easily cause damage to the drug.

Harm! Therefore, the medication should be reasonably adjusted according to the temperature change, and the safety should be paid attention to in summer. First of all, do not use toxic pesticides and high residue pesticides.

Second, read the label carefully before taking the medication. For the use of non-high-temperature stations with no label or blurred label, the applicator should strictly follow the use procedures and carry out BOM safety protection work.

When preparing pesticides, protective equipment should be used. It is forbidden to pour medicine with bottle caps, use barrels to drink Yuliang materials, and appropriately reduce the volume and concentration: the higher the temperature, the more the concentration of the drug must be controlled, and the higher the temperature, the higher the efficiency.

If the concentration is not reduced, it is easy to cause damage to the drug. "Spraying" with this product When spraying, pesticides can be attached to the leaves of crops.

What we all know is that when it comes to growing crops, it's not that simple. And if you don't pay attention to safety when spraying pesticides, you are likely to cause very serious injuries to yourself. Especially in the summer, because people wear less clothes in the summer, it is even more important to pay attention to their own protection at this time.

So what we're going to talk about today is what you need to pay attention to when spraying pesticides in the summer

The first thing to do is to be careful when spraying pesticides, and you also need to ensure your own safety when fertilizing crops, that is, to do some protective measures. When spraying pesticides, you must wear masks and gloves, if you apply fertilizer directly, it is likely that the pesticide will be contaminated on your hands. And if it enters your own mouth and nose, then the damage to the human body is actually very great.

The second is not to spray pesticides at a time when the temperature is too high when you are in the refrigerator, because if the light is very strong. Then the volatile nature will be very strong when spraying pesticides, which can easily lead to poisoning of the people spraying pesticides.

Don't choose the time point with a lot of dew to spray, and the second is when spraying pesticides, because some people who spray pesticides are very afraid of heat. At this time, they will choose to spray the medicine in the early morning or evening, so there is actually a lot of dew on the crops at this time. And at this time, the pests have not yet come out to move, so try not to choose the time point with dew when spraying pesticides.

It is likely that the efficacy of the drug will be significantly reduced, so when spraying pesticides, try to choose to spray on sunny days.

Pay attention to the concentration of pesticides, and finally you must pay attention to the concentration of pesticides when spraying pesticides, there are many people who spray pesticides in order to be able to work for a shorter time and increase the amount of pesticides. In this case, if the concentration of pesticides is too high, it is likely that the leaves of crops will also be harmed by these pesticides. Therefore, when spraying pesticides, be sure to add sufficient water to ensure the dilution of the drug.

1.Pay attention to the time of spraying pesticides, 2The temperature at which the pesticide is used, 3Humidity of spraying pesticides, 4Concentration of pesticides, 5and not spraying pesticides before or after rain.

It is necessary to pay attention to safety, pay attention to the corrosion of the drug properties, do not apply the medicine in the case of special high temperature, and pay attention to the dosage, and control the time at the same time.

When spraying pesticides in summer, you should wear gloves, wear masks, pay attention to safety, pay attention to operation, and add distilled water or salt water to the pesticides to dilute.

First of all, it is necessary to avoid the time when the temperature is relatively high, and there is a heavy rain, and then you also need to pay attention to maintaining a suitable spraying distance, you must pay attention to the appropriate concentration, do a good job of personal protection, and spray must be particularly uniform.

It is necessary to pay attention to the climate, the choice of pesticides, the addition of synergists, the method of application, and the nature of pesticides.