What are the essentials of spraying powder pesticides?

The essentials of spraying pesticides are to spray powder with a duster, mix the pesticides with the seeds, and then plant, apply pesticides to the soil, fertilize crops in the process of crop growth, and do not spray pesticides on crops.

To carry out uniform spraying, it is necessary to choose the appropriate pesticide for observation, to pay attention to the scope of spraying, to pay attention to the time of spraying, to pay attention to the depth of spraying, and to pay attention to the position of spraying pesticides.

The first thing is to do a good job of ventilation, at the beginning of the session must be particularly even, and then disperse the personnel, must stay away from this place, and after spraying pesticides, must close the door in time.

The key points to note in the use of powder pesticides are these: powder pesticides can not be used with water, it is one or more kinds of pesticide raw materials and clay, clay and other fillers, which are mixed by mechanical processing and crushing; WP can not be used for powder spraying, it is made of one or more pesticides, raw materials and filler clay and other additives added to a certain amount, and wetting agents such as Yuhe laundry detergent are processed and crushed by mechanical processing. At the same time, it cannot be used for poisoning or suppressing seeds, because it has poor dispersion performance and high concentration, and is prone to pesticide damage.

These key points of use are to pay attention to cover their mouth and nose, but also to do a good job of protection of the number of bright balls, but also to pay attention to the angle of spraying, but also to pay attention to the way of use, but also to pay attention to the damage to crops, but also to pay attention to prevent pesticide damage.

The powder is not easily moistened by water, and cannot be dispersed and suspended in the hand water, so it cannot be sprayed with water. It is generally used for powder spraying, and the high-concentration nano-degree powder can be used for seed dressing, soil treatment or preparation of poison bait.

When using, we must pay attention to the right time, we must carefully choose to take the morning or evening, after spraying pesticides, we must pay attention to ventilation, we must choose the right pesticides, and we must choose the right dose.

Be sure to choose the right pesticide, which is very critical, to choose the right pesticide according to the situation of the plant, and the use of pesticides must pay attention to the ratio, the way of use, in accordance with the instructions, must pay attention to safety.

You need to pay attention to safety, and you must pay attention to the weather conditions when using, so that you can maximize the effect, and you must pay attention to the way of spraying and the way of use.

First of all, it is necessary to pay attention to personal protection, and to wear protective clothing, but also according to the crop, choose the right agent, and then pay attention to the time and concentration of spraying.

Powder pesticides are convenient to store and not easy to volatile, and many farmers will choose such preparations in agricultural production. However, many farmers have misconceptions when applying powder pesticides. For the application of powder pesticides, pay attention to the key points as follows:

Powdered pesticides are made up of one or more pesticides proximidine and clay. Clay and other fillers are crushed and mixed by mechanical processing. The crushed powder form passes through the No. 200 sieve mesh, the powder form is coarse, not easy to agglomerate, and the spraying circulation and dispersion are good.

However, the powder is not easily moistened by water, and cannot be dispersed and floated in water, so it cannot be used in a water sprayer. Generally, it is used as powder spraying, and the powder with higher concentration can be dressed. Soil layer solution or configuration of poison bait, etc.

Powder pesticides should be selected on sunny days without wind to carry out powder spraying work, the actual time of the day, morning and dusk are the best. Farmers can use a duster to evenly sprinkle the medicine on the crops, and touch the leaves with their hands to feel slightly powdery, but it is advisable to see the powder layer. Special attention should be paid to the fact that the powder spraying method should not be used at the seedling stage of crops.

WP is made of one or more pesticides, propyramide and filler clay, etc., with a certain total amount of soap powder and other wetting agents added through mechanical processing, crushing and mixing. Its crushed powder form according to the 200 mesh sieve, the particle size is better than the powder, can be moistened by water, and can float in the water evenly, its floating rate is generally above 60%, can make the liquid drug fully adhere to the surface of green plants and harmful organisms, so that the drug can give full play to the effect of contact killing or stomach poisoning.

WP is mainly used for water sprayer applications. Because it has a wetting agent that is easy to absorb moisture, it can make the medicine surface clump or clump, so it cannot be used as a powder, and at the same time, it cannot be used as a poisonous soil topdressing or seed dressing. Because of its poor dispersion characteristics and high concentration value, it is easy to cause fertilizer damage.

Powder spraying is a spraying method that uses the wind speed caused by the powder spraying equipment to evenly spray the powder on the overall target green plants. This method is most suitable for applications in arid and dry areas. The preparation suitable for powder spraying is powder.

The shortcomings of this method are that the dosage is large, the powder adhesion is poor, the actual effect is not as good as the emulsifiable concentrate and wettable powder of the drug, and it is easy to be gently blown by the wind and washed by precipitation, and the environment is polluted. Therefore, when spraying powder, it is easy to carry out under the standard of dew drops on the leaves sooner or later or when the leaves are wet and cold after rain, and the static wind standard, so that the powder is easy to accumulate and adhere to the leaves and improve the control effect.

What do you know about the two misunderstandings in the use of powder pesticides?

Many people will use powder pesticides when growing vegetables, and powder pesticides are not volatile, so storage is very convenient. What do you know about the two misunderstandings in the use of powder pesticides?

The first point of powdered pesticides is used with water. The powder is relatively coarse, not easy to agglomerate, and has good fluidity and dispersion. However, the powder is not easy to be wetted by water, and it cannot be dispersed and suspended in water, so it cannot be sprayed with water.

Generally used for dusting, high-concentration powder can be used for seed dressing, soil treatment or preparation of poison bait. Powder pesticides are a mixture of one or more pesticide raw materials, clay, clay and other fillers that are crushed and mixed by mechanical processing.

The second point is that WP is used for powder spraying. The fineness of reed powder is better than that of powder, can be wetted by water, can be evenly suspended in water, and its suspension rate is generally more than 60%, which can make the liquid agent fully attached to the surface of plants and harmful organisms, and make the agent play a contact or stomach toxicity role. WP is mainly used for spraying with water because it contains a wetting agent that is easily absorbable and can make the powder clump or agglomerate, so it cannot be used as a powder.

Shoot the old envy. > third point of powder spraying method, use a duster to evenly spray the powder on the crop or control object. Powder particles will fly in the air, so powder spraying should be done on sunny days when there is no wind. In the morning and evening, light wind is generally the best time to spray dust.

The powder should be sprayed evenly and in the appropriate amount. Touching the leaves with your hands will give you a slight powdery sensation, but you won't see the powder layer on the surface of the leaves. At the seedling stage of crop growth, it is not suitable to spray powder.

Due to its poor dispersion, it is prone to drug damage.

The fourth point is seed dressing method: a certain amount of powdered pesticides are mixed with seeds in proportion and then sown, which can prevent and control pathogenic bacteria, underground pests and seedling diseases attached to seeds. WP is made by adding a certain amount of washing powder and other wetting agents to one or more pesticides, filler clay, etc., through mechanical processing, crushing and mixing.

WP cannot be used as a poisonous soil or seed dressing.