What should I pay attention to when using pesticides in greenhouses?

Greenhouse is an important production base of vegetables in China, especially in winter, and it is also the main production base of table vegetables in China. The space of the greenhouse is relatively closed, the internal air circulation is poor, the humidity is easy to be too large, and pests and diseases are prone to occur, so it is necessary to use drugs to prevent and control the fruits to ensure the quality of vegetables. Pay attention to the following points in greenhouse medicine.

Spraying time, spraying time should be carried out in front of the insulation quilt in the afternoon as much as possible to avoid direct sunlight and prevent the occurrence of pesticide damage. It can also be sprayed in the morning according to the weather conditions, but be sure to wait for the dew to dry, because the leaves in the morning are relatively tender, and the operation is not good, which will cause pesticide damage.

<> rainy weather, the humidity in the shed is high, try not to spray, in order to prevent the humidity in the shed from becoming larger due to spraying, in this case, you can spray electrostatic precipitator, which can not only reduce the humidity, but also improve the disease. Don't let go after taking the medicine, some drugs have a fumigation effect, and if you are in a hurry to let go after taking the medicine, you will lose the effect. When taking the medicine, it is necessary to pay attention to the concentration of the liquid medicine to prevent the concentration from being too high and cause harm, and it must be used according to the instructions or according to the requirements of the technician.

Attention should be paid to the rational compound of medication, because the current disease is often mixed, there are two or three or four mixed occurrences, which requires the use of a single drug, according to the condition of several drugs to use the compound ,..The compound should pay attention not to react to prevent the occurrence of drug damage. Attention should also be paid to taking turns to prevent drug resistance.

Making medicine is one thing, pay attention to the physical regulation of the couple, if the wind ,.. is releasedAdjust the temperature and use more organic fertilizer to serve, only the combination of the two can have a good control effect.

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Attention should be paid to the use of pesticides, but also to pay attention to the temperature, pay attention to the dosage of pesticides, but also pay attention to the situation of pesticide damage, when using pesticides, we must pay attention to dilution, understand the basic use.

It is necessary to pay attention to ventilation, it is best to spray pesticides on sunny days, choose finer spray sheets and atomizers, spray them evenly, and remove the causes of abnormal growth of vegetables and choose the right pesticides.

Be sure to control the temperature, avoid the indoor temperature is too high, be sure to pay attention to the ratio of pesticides, do not operate against the wind, and pay attention to ventilation.

It is necessary to have corresponding countermeasures, understand the rules, pay attention to the phenomenon of pesticide residues, need to tidy up the environment, prevent problems before they occur, and pay attention to the time of using pesticides.

When using pesticides, we must choose the right type, and then we should also pay attention to the dosage and ratio, pay attention to the degree of pesticides, and be sure to prescribe the right medicine.

Pay attention to the proportion of pesticides, pay attention to ventilation, pay attention to the time of spraying pesticides, choose safe pesticides, and preferably choose bioregulators.

Pay attention to the use of pesticides, pay attention to the ratio, pay attention to the time of use, pay attention to the temperature, and pay attention to the way of spraying.

First, it is necessary to use high-efficiency, low-risk and low-residue pesticides.

According to the intelligence information of plant protection units across the country, the use of high-efficiency, low-risk and low-residue pesticides to avoid exceeding the scope and over-dosing, prohibiting the use of pesticides prohibited in our country, and prohibiting the use of high-residue pesticides on crops such as melons and vegetables, vegetable watery coarse fruits, fruit trees, leaves, Chinese herbal medicines, etc. It is necessary to strictly control the frequency of pesticide application, pay attention to the pesticide safety observation period, and ensure that the pesticide residues of agricultural products such as amaranth, beans, and lettuce do not exceed the standard when they are sold, so as to ensure food hygiene and safety.

Second, it is necessary to prevent the application of pesticides during high temperature periods.

When applying pesticides in the field, pay attention to wind speed, wind frequency, and cloudy and sunny weather changes. Pesticides should be applied at temperatures below level 3 winds in rainy mountains to avoid changes in the potion to damage other food crops such as silkworms and shrimp ponds, fish ponds and other aquatic product breeding industrial bases. The application time of high temperature should be selected before 9 o'clock in the morning or after 5 o'clock in the evening, and the pesticide should not be applied around noon.

Three. It is necessary to improve security protection.

Equipped with pesticides, special equipment should be selected to measure and mix, and the medicine or mixing must not be taken by hand immediately. When applying pesticides, it is necessary to wear rubber gloves, protective masks, protective clothing and other protective equipment, prohibit eating, drinking water, smoking, and should be advantageously applied to avoid pesticides entering the eyes, touching the skin or inhaling into the body. After applying the pesticide, avoid the application of the pesticide on the spot, and wash the hands and face before engaging in other theme activities.

Once the pesticide application staff has dizziness, headache, nausea and vomiting, nausea and vomiting and other pesticide food poisoning symptoms, they should immediately leave the application site, change the clothes and pants that have been polluted by the environment, and carry the pesticide logo to the hospital immediately for treatment.

Four. It is necessary to improve the level of scientific pesticide application

Many shareholders should flexibly use systematic prevention service projects to promote quiet prevention, replace a household pest control, make full use of the staff, technology, and equipment advantages of professional service agencies, reduce the frequency of medication, reduce the use of pesticides, and improve the level of science and drug safety. Flight defense professional service institutions can apply some high-efficiency agricultural machinery and equipment such as walking manure spreader sprayers with high cost performance, high work efficiency and low labor efficiency to reduce the direct contact of staff with pesticides.

Five. To immediately ** pesticide packaging waste.

After the application of pesticide bottles (bags) and other packaging waste can not be thrown away, the empty packaging should be cleaned up 3 times can be seen in the field, returned to the pesticide operation store or promoted to the pesticide packaging waste special type of use barrel, by the technical professional treatment organization centralized treatment, reduce the environmental pollution of pesticide waste to the natural environment.

At noon, the temperature is extremely high and the evaporation is rapid. It can be said that just after the fight, the back is basically dry, which is a serious waste and cannot achieve the effect. The first point is, don't choose to take medicine at noon, so when is the best time?

Here, it is advisable to choose 7-9 o'clock and 16-19 o'clock. These two time periods are OK.

Wear less clothes in the summer, and the potion will easily stick to the **. When exposed to the sun, it can cause symptoms such as allergies and poisoning. In addition, it is necessary to take a shower in time after taking the medicine.

Some friends felt that they evaporated quickly in the summer, so they privately increased the concentration and considered vaporizing some, which had little effect on efficacy. In fact, this thinking is wrong. It is easy to cause drug damage and burn leaves.

Use fast-acting strong systemic pesticides. Choose fast-acting pesticides such as melofen, succulin, and octyl cyanogen EC, which have strong toxic effects. Pests can be killed 1-2 hours after use.

Choose pesticides with strong systemic properties, such as promethazine and methametha. After 4-5 hours of use, more than 80% of the active ingredients can be absorbed by the crop into the internal tissues, killing pests and bacteria even when it rains. Add the right amount of adhesive and water treatment agent.

Wettable powders have poor adhesion to pesticides. When preparing pesticides, add 100-150g of soybean flour or laundry detergent per 100kg of liquid medicine to improve the use effect of pesticides.

In order to improve work efficiency or enhance the control effect, some farmers often increase the amount of pesticides, reduce the dilution rate of pesticides, and arbitrarily increase the concentration of pesticides, even in the high temperature season in midsummer. However, this is not the case. Water evaporates quickly under scorching sun and high temperatures.

If the concentration of pesticides is too high, it is easy to cause pesticide damage to plant leaves. In agricultural production, due to the hot summer weather, some friends will mix herbicides, insecticides, and fungicides. This is undesirable and must be done with caution.

For example, it is not recommended to mix herbicides and insecticides, and organophosphate insecticides cannot be used for a week before and after the use of the corn herbicide nicosulfuron.

In the environment of high temperature weather, spray pesticides at 5 o'clock in the afternoon, this time will not lead to the volatilization of pesticides, you must pay attention to your diet when using pesticides, you need to take protective measures, put them in the shade, and then spray some water after spraying.

First, do not use high-toxicity and high-residue pesticides. At present, high-efficiency and low-toxicity pesticides can replace high-toxicity and high-residue pesticides, and there is no need to use those pesticides that are on the verge of elimination, high toxicity and poor efficacy. The second is to pay attention to the spraying time and avoid the high temperature period as much as possible.

When using drugs at high temperatures, people are easy to be poisoned, crops are prone to pesticide damage, and the prevention and control effect is not good, so it should be avoided as much as possible. The third is not to fatigue the medication. The elderly, the weak, the women and the young have poor resistance, and it is not suitable to participate in the work of disease prevention and insect control.

If you feel tired with medication, you should wash and rest in time.

First of all, avoid the noon time when spraying, because many chemicals are very volatile, and if you spray chemical pesticides when the temperature is particularly high, it will affect the effect. It is also best not to spray in rainy weather, you should pay attention to physical protection when spraying, do not touch **, and you can wear protective clothing when spraying.

When using, we must avoid the time when the temperature is relatively high, and when using pesticides, we must pay attention to the composition of pesticides and the concentration of pesticides, do not use too much at one time, and also need to do a good job of personal protection.

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.

Pesticides are indispensable means of production for agricultural production, and are effective in the prevention and control of crop diseases, insects and weeds. 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. Some pesticides on the market will not reduce their efficacy at low temperatures, some will fail at low temperatures, and some will 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 relatively low, then drugs that have little effect on efficacy at low temperatures should be chosen. Pests and weeds will absorb less of the solution.

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 liquid medicine will also become relatively slow. For pesticide varieties with a long residue period and early planting in the next season, it is still necessary to use pesticides with caution, especially herbicides, so as not to cause herbicide harm to low crops.

Integrated control is an effective and sustainable way to control diseases, insects, weeds and rodents, but in actual production, pesticides are still one of the most important control measures, so pesticides are an important means and tools to protect crops and reduce yield loss. The problems of pesticide poisoning and environmental pollution are more prominent. Every year, millions of people around the world suffer from pesticide poisoning.

The impact of pesticides on the environment and ecology, especially on pollinators, not only destroys the environmental ecology, but also affects the sustainable development of agriculture. People mainly grow foods such as grains, vegetables, and fruits.

Seventy-five percent of China's diet is also plant-based, and its quality and safety are directly related to pesticides. Currently, the cost of most biopesticides is good. Mastering the use of pesticides and using pesticides in a targeted manner can not only reduce pesticide residues in agricultural products, but also ensure that crops are not harmed by pests and diseases, resulting in economic losses.

The special position of biopesticides in the future global pesticide industry structure is determined.