Manual for the use of pyrazole carbendazim on vegetables

As one of the important methoxyacrylate fungicides, pyrazolyl carbendazim has been put on the market since it was put on the market. the functions of these fungicides, such as wide germicidal spectrum, many target bacteria, strong immunity, improving crop resistance, promoting crop growth, anti-aging and so on, can be verified, and have been recognized by most users.

The reason why pyrazole carbendazim can attract the attention of the industry fundamentally lies in its excellent application performance. But no matter how good the medicine is, if you can't use it, it's a waste!

Today, I mainly sort out the problems about the use of pyrazole bromides.

1 pyrazole carbendazim, EC, suspension or powder which is better?

Generally speaking, each has its own differences.

(1) Powder

It will be dispersed during processing and use, which will cause environmental pollution, which is the biggest problem of powder.

(2) EC

Toluene and xylene were originally used, but now the state does not encourage the registration of EC, so it begins to use microemulsion, water emulsion, or vegetable oil instead, which is a relatively backward dosage form, but some products must be made into EC.

(3) suspension agent

The suspending agent is more advanced, the suspending agent process is more strict, and the processing cost is also very high, but the state is not stable, and delamination may occur when placed for a long time.

2 what is the relationship between pyrazolyl ester, azoxystrobin and carbendazim?

Carbendazim, azoxystrobin and pyrazolyl carbendazim are called the three brothers in fungicides, and they are all methoxyacrylate compounds. Methoxy acrylate fungicides are a new type of fungicides developed with natural methoxyacrylate antibiotics as leading compounds.

There are many common characteristics in agricultural application:

(1) the unique mechanism of action.

They are all mitochondrial respiratory inhibitors of pathogenic fungi and are effective for strains that have developed resistance to sterol inhibitors (such as triazoles), phenylamides, dicarboxyamides and benzimidazoles.

(2) wide spectrum of sterilization.

It showed good activity against almost all fungal diseases (ascomycetes, basidiomycetes, oomycetes and semi-known fungi), such as wheat powdery mildew, leaf blight, red spot, net spot, black fishy spot, rice blast, sheath blight, downy mildew, blight and so on, which is more important for the control of blight.

(3) it has protective and therapeutic effect, good penetration and internal absorption, and can be used by stem and leaf spray, water surface application, seed treatment and so on.

(4) highly selective.

It is beneficial to crops, human beings, animals and biosafety, and basically has no pollution to the environment.

Difference:

(1) azoxystrobin

It has a wide germicidal spectrum and is effective against ascomycetes, basidiomycetes, half-known bacteria and most pathogens in oomycetes.

(2) Ether carbendazim

The germicidal spectrum is not as wide as azoxystrobin, but it has special effects on powdery mildew and so on.

(3) Pyrazole carbendazim

It has the strongest relative antibacterial activity, has a strong ability to inhibit spore germination, and has significant antibacterial activity against ascomycetes, basidiomycetes, semi-known fungi, oomycetes and other plant pathogens, and has potential therapeutic activity. it can be used to control a variety of crop fungal diseases. Pyrazole carbendazim has strong conduction activity in plants, which can improve crop physiological function and enhance crop stress resistance.

These three compounds all have the functions of protection, treatment and eradication. The biggest difference is that the mobility of isoxim is lower than that of the other two, the activity of pyrazole is higher and the permeability of azoxystrobin is stronger.

What disease does 3 pyrazole carbendazim treat?

Pyrazole carbendazim can be used in wheat, peanuts, rice, vegetables, fruit trees, tobacco, tea trees, ornamental plants, lawns and other crops.

Control ascomycetes, basidiomycetes, half-knowledge fungi and oomycetes caused by leaf blight, rust, powdery mildew, downy mildew, blight, anthracnose, scab, brown spot, blight and other diseases.

It has good control effect on cucumber powdery mildew, downy mildew, banana scab, leaf spot, grape downy mildew, anthracnose, powdery mildew, tomato and potato early blight, late blight, powdery mildew and leaf blight.

Usage and dosage of pyrazole in different crops

Take 20% pyrazolyl ester wettable powder as an example

Note: for pesticides with different contents of active ingredients, the dosage is different, be sure to refer to the instructions on the pesticide packaging or consult specific product manufacturers.

4 how much water do you add?

(1) how many jin of water do 100g hit?

You can reach 300 jin of water.

(2) is it all right to use 20 grams of water in a bucket?

It is no problem to use these crops such as wheat and rice, but it may cause drug damage when used in sensitive crops, such as strawberries, so 10g ~ 15g of a bucket of water is a relatively safe dosage.

5 legume crops

The main results are as follows: (1) Pyrazolyl methyl has a good control effect on the main bean diseases such as bean leaf spot, rust and anthracnose.

(2) Pyrazocin can effectively control peanut brown spot, black spot, snake eye, rust and scab. In addition, it also has a good control effect on white silk disease of peanut.

6 how to use strawberries?

What should be paid attention to when pyrazole is used in protected strawberries? What kind of diseases are mainly prevented and treated? Strawberries have a long flowering period. do they affect flowers and bees?

Broad-spectrum fungicide, mainly prevention, mainly against powdery mildew, downy mildew, leaf spots and so on. Pyrazole is used to prevent the disease in the early stage, and then used in the later stage, such as downy mildew, it can be used alternately with enamylmorpholine, carbendazim and so on.

Some experiments have proved that less than 25ml a pot of water is safe for flowering bees, but we should also pay attention to avoid application at high and low temperatures, otherwise there are drug hazards and cannot be mixed with copper preparations.

7 pyrazole carbendazim for chives can prevent and cure what kind of disease?

Pyrazolyl methyl has a good preventive effect on fungal diseases such as powdery mildew.

How to use it on watermelon?

It can be used in the early stage to prevent vine blight, anthrax and vine blight in the middle and later period. According to their local conditions, they can be used once or twice in the early stage of prevention, and can be compounded in the later stage of treatment to treat downy mildew and blight.

9 how to use it on cucumbers?

It has a good effect on cucumber, preventing downy mildew, powdery mildew, anthracnose and spot diseases, increasing chlorophyll content, increasing photosynthesis, reducing plant respiration and improving crop resistance.

Note: timing of use

The main results are as follows: (1) the timing of the use of this kind of fungicides must be advanced, and they should be used as protective agents to prevent diseases, or at the initial stage of diseases such as before sowing, after emergence or planting, they can give full play to the advantages of fungicides.

(2) Pyrazole carbendazim is good for its control effect and lasting effect, but its quick effect is still slightly insufficient compared with other targeted fungicides, so it is best to use it with other fungicides or compound agents.

(3) the action site of pyrazole carbendazim is relatively single, so the resistance is relatively fast. The number of times of use must be controlled when using it, so as not to accelerate the generation of resistance.

(4) the strong permeability makes pyrazole carbendazim can have a good affinity with the leaf surface, which greatly improves the prevention effect and duration, but we should pay attention to the occurrence of drug damage. Especially in the nursery stage of crop seedlings, under the conditions of exuberant crop growth and high temperature and humidity, there is a certain risk of drug damage if the concentration of pyrazole is too high.

(5) Pyrazocin has strong growth-promoting and anti-aging effects, but it is easy to lead to the postponement of mature color conversion at the same time of anti-aging, so try not to use it in the color conversion period of crops, such as on tomatoes, there may be no problems in the early use, and the use in the later stage may delay the color conversion of tomatoes and keep them from being red. So the period of use is very important.

Mixed matching problem:

10 excuse me pyrazole carbendazim mixed with other agents, is there anything you should pay attention to?

Try not to mix with alkaline fungicides, nor with organosilicon, one is waste, the other is easy to produce drug damage. When mixed with other agents, pay attention to the concentration and do the test well.

What should we pay attention to when mixed with pyrazole and foliar fertilizer? And alginic acid?

First: first dissolve foliar fertilizer, then pour pyrazole, and then pour other things.

In order to improve the efficacy, can organosilicon be added to pyrazole carbendazim?

Pyrazole carbendazim itself has high permeability and organosilicon is not recommended.

13 can pyrazolyl carbendazim be mixed with brassin?

It can be mixed, but it is best to mix it after secondary dilution.

Can 14 pyrazole carbendazim be used with peracetic acid?

Mixed use of oxidizing pesticides such as potassium permanganate, hydrogen peroxide, peracetic acid, chlorobromine and so on is not recommended.

Can the efficacy of 15 pyrazole carbendazim be improved when it is used in combination with triazole fungicides?

The effect of compound triazole fungicides is very good, and the efficacy is improved. The internal absorption and conductivity of pyrazolyl ester is not as strong as azoxystrobin, but it has good permeability.

Other problems such as drug damage:

16 powder will be easy to drug damage?

Pyrazole powder will not cause drug damage. Let me tell you how the drug damage is caused. If you have used mancozeb powder, you should know that this is relatively easy to cause drug damage. In order to be cheap, many enterprises like to use that kind of large bag on fruit trees. Instead of zinc, manganese and zinc must be in the complex state, if it is not in the complex state, it is easy to release the manganese ion prematurely, and then the powder can not meet the requirements. It is prone to drug damage.

Our pyrazole carbendazim in a reasonable dilution multiple case, generally will not appear drug damage phenomenon. However, if there is a local precedent for drug damage caused by pyrazole, it is recommended to experiment first.

Will the mixture of 17 and 920 gibberellin cause drug damage?

Under normal circumstances, there will be no drug damage, unless you look at what crop you are on, for example:

On grapes, mixing with 920 gibberellin may cause drug damage, not because pyrazole, but because the powder will adsorb all the surrounding drugs together, causing local concentration to increase and cause drug damage, but this requires practical operation. Most of them are caused by the random increase of the dosage.

18 if it is used as a health product, can it be used many times?

Can not be used many times, although it has the effect of health care, but the use of more times will still produce resistance.

19 how to do it, pyrazole carbendazim can maintain its vitality

First of all, we should have a correct understanding of pyrazole carbendazim. It is a good ingredient, but it is by no means omnipotent. A product that is in the right place is a good product.

As a fungicide, the function of strengthening protective agent and immune agent is far more important than that of strengthening therapeutic agent.

As a function of promoting growth, strengthening the fruit expansion in the young fruit stage is more important than strengthening the rapid fruit expansion stage.

As the function of increasing yield and income of field crops, strengthening and improving effective panicles (pods) is more important than increasing the number of grains per spike.

As a stress-resistant function, strengthening prevention is more important than remedy.

As a crop health function, the synergistic use of fertilizer and fertilizer is particularly important.

As a methoxyacrylate fungicide, it is better to use less than too much.

As promoters, we must return to crops and do a good job in market segmentation.

For example, single-dose pyrazole can be located in improving the quality of melons, fruits and vegetables; compounding agents with triazole compounds can be located in the treatment of diseases; compounding with protective compounds can be used as protective agents to explore more and more accurate methods of use. Give full play to the greater value of pyrazole.