What should be paid attention to in pesticide mixing, and the necessary knowledge of pesticide mixin

1. Exclude mixing and matching, see the manual.

1. Acidity and alkalinity will affect the stability of the active ingredients. Pay attention to the instructions for the use of pesticides, for example, the first pesticide description stipulates that alkaline pesticides cannot be mixed, so other pesticides participating in the mixture cannot be mixed if they are alkaline pesticides.

2. Many pesticide varieties cannot be mixed with drugs containing metal ions. Therefore, if the first pesticide description stipulates that it cannot be mixed with a drug containing metal ions, then the other pesticides participating in the blend cannot be mixed if they contain metal ions.

3. The active ingredient with a single three-dimensional configuration such as cypermethrin and cyhalothrin (guanguanzhubin) is only stable in a very narrow pH range, and the medium is acidic and easy to decompose, while the medium is alkaline and will "transpose" and reduce the efficacy, and it is generally not suitable for mixing.

4. Microbial insecticides, microbial fungicides, and microbial herbicides cannot be mixed with chemical fungicides and pesticides. If mixed, the chemicals will kill the microorganisms of these microbial agents and lose their efficacy.

5. If the instructions make it clear that it cannot be mixed with that specific pesticide, then it should be directly excluded.

Second, determine the mix and do the test

Mix the liquid medicine in a transparent glass container and observe whether there will be abnormal phenomena such as oil slick, flocculation, precipitation or discoloration, heat, and bubbles. Where the liquid medicine shows chemical changes or the physical properties of the liquid medicine have a vicious circle, this kind of mixing is not advisable. If there is no problem with the mixing test, the pesticide damage test of a small area or a single crop in the field should also be carried out, and if there is no pesticide damage, it can be used in the field.

3. Pesticide mixing is not more than three: pesticide mixing is generally appropriate for two varieties, and if necessary, it can also be three, and more is likely to produce adverse consequences.

Fourth, the mixed dosage of co-prevention drugs is reduced: due to the same goal of co-prevention, it is natural that the drug should be mutually reliant, and the preparation method is usually based on the rule of equal division and additive effect. That is, when the two are mixed, each maintains half of the original dosage; When it is mixed three, and so on.

Fifth, the mixture of monotherapy pesticides according to the "various amounts": the "various amounts" when treating different targets is also a means of mixed drug prevention. According to the mixed growth of diseases, insects and weeds at the same time, the target of concurrent treatment was confirmed, and mixed drug prevention was selected.

Since each has its own objectives, it is reasonable to maintain its own effective control dosage (i.e., "each amount").

6. Mixing of different dosage forms in order: pesticide mixing should be added in the order of micro-fertilizer-wettable powder-suspension-water-emulsifiable concentrate, and stirring continuously, and then add the next agent after a drug is fully dissolved, and then add the next agent to mix two wettable powders, and the wettable powder should be mixed evenly first, and then diluted with water.

7. Mixed drugs should be used now: mixed pesticides should be used now, used up as soon as possible, and should not be stored.

In order to accurately and safely formulate pesticides, the following points should be noted:

It is not possible to pour medicine with a bottle cap or dispense medicine with a drinking bucket; You can't use a bucket to get water directly from the river; Do not put your hands into the liquid medicine or powder and stir.

When opening pesticide packaging, weighing and preparation, operators should wear necessary protective equipment.

Formulators must be professionally trained, master the necessary technology and be familiar with the performance of the pesticides used.

Pregnant and lactating women are not allowed to participate in the dispensing.

Pesticide weighing and preparation should be carried out according to the nature and dosage of the drug to prevent splashing and scattering.

The preparation of pesticides should be paid attention to in places far away from residential areas, livestock pens and water sources, and the pesticides should be used with the preparation, and the sealing measures should be taken as far as possible after the preparation has been prepared, and the remaining pesticides should be closed in the original packaging after opening the package, and should not be transferred to other packaging (such as bottles for drinking water or packaging for food).

Dispensing equipment is generally required to be special, and it should be washed after each use, and it should not be washed in rivers, streams, and wells.

The few remaining and discarded pesticides should be buried in the pit.

Use caution when handling powders and wettable powders to prevent dust from flying. If you want to pour a full bag of WP, stand upwind of the bag opening as close to the water surface as possible and let the dust and flying matter blow away.

Do not overfill the sprayer to avoid leakage of the liquid, and the prepared liquid should be used up on the same day.

What should be paid attention to when mixing chemical pesticides? Avoid blindly increasing the dose. When several drugs are mixed, water should not be added to the product CADA once, but all drugs should be calculated using the same part of water.

Don't use good water for distribution, because water contains many minerals, and what kind of medicine should be mixed with should be paid attention to "ready to use, not for a long time". Although the liquid medicine does not react when it is just dispensed, it does not mean that it can be left for a long time at will, otherwise it is easy to produce a slow reaction and gradually reduce the efficacy of the medicine. Such as calcium and magnesium, these minerals can easily react with the liquid to form a precipitate and reduce the concentration.

When mixing pesticides, it is best not to exceed three categories. When adding, add pesticides one by one in the order of micro fertilizer, water-soluble fertilizer, suspension agent, water emulsion, water and oil, and pay special attention to whether the active ingredients and emulsifying properties after mixing are changed, because this directly affects the play of efficacy. Therefore, the mixing of pesticides is not a simple mixture, but a chemical addition in a scientific way.

It can only be mixed with acids when the pesticide is completely mixed. Reason: Under acidic conditions, some agents will undergo chemical reactions, resulting in their inactivation, which will reduce efficiency, and at the same time, it is easy to cause damage to the drug and cannot be mixed with copper reagents

Some reagents may not be able to mix with alkaline substances. Reason: Some agents are prone to hydrolysis reactions or complex post-administration under alkaline conditions to achieve perfect secondary dilution.

When mixing CASO, it is recommended to add more than half of the water to the spray and mix BEM after adding the first pesticide; The remaining pesticides are diluted and mixed with plastic bottles, which can promote the healing of unhealthy tissues by avoiding and controlling diseases.

For example, after the start of mold, auxin can be added to the drug, which inhibits the expansion of yellow leaves. The changes in the chemical segment that fall off after dilution will lead to damage to the original structure and AOS drug! Chemicals that easily decompose from alkali to caso:

It is widely considered according to physicochemical properties, toxicology, control objects, chemical changes that may occur after mixing, and effects on cultures.

What should I pay attention to when mixing pesticides? Most common pesticides on the market can be mixed, as long as they are diluted twice and mixed well! When acids and bases are different, they cannot be mixed.

A mixture of herbicides, insecticides, fungicides, fertilizers, sulphur stones, and Bordeaux liquids can be mixed. In pest control, a single agent can gradually disappear from the stage of history. In order to improve the control effect and achieve the effect of synchronous treatment, pesticide compound is more effective.

<> reasonable combination of pesticides can improve the control effect, delay the emergence of pest and disease resistance, improve the control effect, and reduce the dosage. Mixing insecticides to control different pests and diseases can also shorten the application time. Some types of pesticides have good rapid control effects, but the duration is shorter; Some fast microorganisms produce harmful copper sulfide, increasing the amount of soluble copper ions.

Many pesticide fungi are lethal to biopesticides. Therefore, microbial pesticides and fungicides cannot be mixed, except for copper agents.

Saving labor, improving labor efficiency, fertilizer efficiency and efficacy, blind USO will not only reduce the effect, but even cause accidental injury. Next, when mixing these three heavy metal ions, the following five heavy metal ion preparations such as iron, zinc, manganese, nickel, and others must be followed. Be especially careful when stirring.

The pesticide mixing sequence should be precise. The order of the flow mixer is usually as follows: micro fertilizer, water-soluble fertilizer, wet powder, water-dispersible granules, suspension agent, micro-emulsion, water emulsion, water, water emulsion, emulsion is added to promote each other's effectiveness and multiply the effect with half the effort; However, mixed pesticides are also contraindicated.

If you're not familiar with it and don't understand it, you shouldn't mix it up.

Chemical reactions, passivity, and harm to drugs. common sense knowledge of mixtures with pesticides; In principle, more than three pesticides should not be mixed, and the cada one should be shaken and mixed thoroughly, and the following insecticides should be added. Insecticides include contact killers, gastric poisoning, fumigation, internal water agents (such as ethephon, double insecticides, etc.) and common emulsions.

Sometimes there are "demulsification" and other modes of action. Actitracin has a mode of action such as protection, **, internal absorption, etc. If these agents with different control effects are mixed, UNS can be supplemented.

The mixing of pesticides is based on the fact that pesticides do not react with each other chemically. When we mix two pesticides together, we have to make sure that the shape of the two pesticides is stable and that they do not react physically or chemically after mixing. If we can't guarantee that the two will react after mixing, then it's best not to try it lightly.

In the case of not knowing, you can do a drug test, after the test is stable and not easy to appear in the case of drug damage, we can use a large area, of course, you can also ask the relevant personnel who sell pesticides, they all know which pesticides can be mixed. <>

For the mixed use of pesticides, he also pays attention to the first come, first served, and also pays attention to this order. The order is not right, and the effort is in vain, so when we use this mixed pesticide, we must blend and match it according to its order. In fact, just like driving, we have to ignite first, then step on the brakes and put the gear, and then release the throttle, the car will start, if one of the links is not done correctly, then there is no way to drive, and there will be a bad situation.

Mixed pesticides should pay attention to this dilution ratio. Pesticides are not mixed, there will be a disturbance on the general instructions to clearly indicate how much water should be added to be able to use, when the pesticide is mixed, then the addition of this water should be paid attention to, the water is too bent and the key will not achieve the effect, too little blood and lead to too high concentration. In addition, do not choose well water for water addition, generally speaking, river water or even rainwater is better, or the water in the rice field is more suitable.

The acidity of the mixture of pesticides cannot be mixed with alkaline. Acidic pesticides are mixed with alkaline pesticides, then they will be neutralized, so when we mix pesticides, we must understand the corresponding pesticide properties, and do not blindly mix them. Finally, the mixing of pesticides should pay attention to the principle of ready-to-use and ready-to-use, and not to delay for too long.

Stability, sequence, water volume, ready-to-use, acidity and alkalinity. The mixed use of pesticides should ensure that the shape of the leaf limb preparation fertilizer and pesticides after mixing is stable and stable, generally with a sufficient amount of water, first prepare a single dose of the solution, and then use this solution to dilute another single agent; However, it is not possible to mix two single doses first and then dilute them with water to avoid adverse reactions. Water has a great influence on the liquid medicine, and the pH and ion concentration of the water will affect the effect.

It is better to use neutral water with low ion concentration in the dispensing water, such as clean rainwater, river water, etc.

1. It cannot be mixed with alkaline substances 2, can not be mixed with acidic substances 3, can not be mixed with copper hand stove preparations 4, micro-biological biliang pesticide or bacterial fertilizer can not be mixed with fungicides 5, and it should be noted that it is not mixed with the preparation of the slag manuscript.

First of all, it is necessary to pay attention to the efficacy of pesticides, and should also pay attention to the ingredients of pesticides.

When farmers plant land to prevent pests and diseases, several pesticides will be mixed and used together in the application of pesticides. The rational mixing of pesticides is a favorable way to improve the control effect, reduce the dosage and number of pesticides, and reduce the labor force of farmers.

In fact, in our agricultural production, it often involves a variety of drugs used together, especially when it comes to a variety of crop pests and diseases, in order to reduce the process of multiple spraying, many fellows like to mix and match a variety of drugs to apply, however, if we randomly match it is easy to cause critical harm or greatly reduce the efficacy.

Although there are many conveniences and benefits of pesticide mixing, it should not be mixed casually, and unreasonable mixing will not only have no effect, but will produce adverse effects. The order in which pesticides are mixed should be correct. In the farmland, I have seen the phenomenon of farmers dispensing pesticides, some use sprayers or small buckets, pick up the applied fungicides, insecticides, etc., no matter what kind of medicine, tear open the seal and pour it directly, and then put the water in and stir.

This is an incorrect method of pesticide mixing.

The correct mixing sequence method should be: first add half of the water in the sprayer or bucket, pour in the first pesticide, and mix well with the water, the first pesticide is best to choose wettable powder, the principle is that the powder and dispersible granules are placed first.

If there are other emulsifiable concentrates and suspensions in the mixture, the second pesticide will be added with the suspension, and the first pesticide will be fully stirred and mixed after addition, and there will be no floating powder bubbles, the two pesticides will be mixed evenly, and the third emulsifiable concentrate will be poured intermittently, which will also be fully stirred and mixed. In this way, the diluted "mother liquor" is completed, and then mixed with water to the required amount, and it can be sprayed.

General pesticide mixing should not exceed three kinds, the usual order of a variety of pesticide mixing is: wettable powder, water dispersible granules, suspension agent, water emulsion, emulsifiable concentrate, add in turn, it should be noted that each addition of a drug, to stir and mix well and then add the next one. Pesticide mixture should be used at any time, and the liquid medicine prepared on the same day should be used up on the same day.