Is the relationship between fungicides and bacterial pesticides the same?

There are many varieties of pesticides, for the convenience of use, often according to their control objects, generally insecticides, acaricides, fungicides, nematicides, herbicides, rodenticides several categories.

Fungicide: specially used to prevent and control plant fungal diseases, bacterial diseases, and viral diseases, according to the principle of action: protective agent, which is used to spray before the invasion of pathogenic bacteria, to protect plants from harm, Bordeaux liquid is a common one; ** agent is used to spray and prevent diseases after the invasion of pathogenic bacteria, and chlorothalonil is the most commonly used.

Bacterial pesticides are living agents, forming an antagonistic relationship with other pathogenic bacteria, fungi and viruses, and its insecticidal principle is that bacteria multiply in large quantities after entering the insect body, producing toxic concomitant spore crystals, disturbing the normal physiological metabolism of pests and making them die. It is different from the insecticidal principle of chemical pesticides, and improper use will reduce the efficacy of the drug or even completely ineffective. Common bacterial pesticide preparations such as Bacillus thuringiensis.

Fungicides are to destroy bacteria and fungi, and bacterial pesticides are bacterial reagents, and the mechanism of action in the prevention and control of diseases is different.

First of all, the definition of nouns is inaccurate, and pesticides can be classified according to their uses: insecticides, fungicides, plant production regulators, etc.; According to the classification of active ingredient categories, it can be divided into: chemical pesticides, microbial pesticides, plant-derived pesticides, etc.

Bacterial pesticides belong to the category of microbial pesticides, which are not comparable with fungicides, and there are chemical pesticides and bacterial pesticides in fungicide products; There are insecticides in bacterial pesticides, and there are fungicides. How do the two compare?

Excuse me: How do pesticide fungicides distinguish between fungicides and bacteriagidals? Thank you!

Bactericide: It can be distinguished from the name, generally known as xxmycin, such as agricultural streptomycin, agricultural oxytetracycline, etc. The bactericide is generally extracted from some actinomycetes and other bacteria, such as medical penicillin, erythromycin, etc., which is the bactericide containing the missing edge fungicide

Fungicides are generally synthetic. The commonly referred fungicide is generally a fungicide. Because among the plant diseases, the fungus disease accounts for the highest proportion, followed by the virus, and the bacteria are the least.

Because most of the fungicides commonly used in agriculture are fungicides, including protective and systemic fungicides. Fungicides and bactericides should not be confused, because they both have specificity, effective against bacteria only effective for bacteria, effective for fungi only effective for fungi, the two cell wall structure components are completely different, and most of the fungicides have a mechanism of action for the cell wall, so they should not be used chaotically.

Summary. Hello dear. Bacterial fungicides cannot be used at the same time as fungal fungicides.

Fungal fungicides generally cannot be mixed with alkaline preparations. Many bacterial fungicides are inorganic copper preparations (such as Bordeaux liquid, etc.), which cannot be used at the same time as fungicidal preparations. If it is not an inorganic copper preparation, it can be mixed.

Generally, there will be detailed precautions for use on the packaging of the product.

1. Can bacterial fungicides be used at the same time as fungal fungicides?

Dear, your game is good. Bacterial fungicides cannot be used at the same time as fungal fungicides. Fungal fungicides generally cannot be mixed with alkaline preparations.

Many of the bacterial fungicides are inorganic copper preparations (such as Bordeaux liquid, etc.), which cannot be used at the same time as fungicidal preparations. If it is not an inorganic copper preparation, it can be mixed. Generally, there will be detailed precautions for use on the packaging of the product.

Fungicides, also known as biocides, algaecides, microbicides, etc., usually refer to chemical agents that can effectively control or kill microorganisms - bacteria, fungi and algae in the water bush system. Internationally, it is usually used as a general term for the prevention and treatment of various pathogenic microorganisms.

According to the survey, there are more than 80,000 kinds of pathogenic microorganisms (fungi, strong bacteria, rickettsia, mycoplasma, viruses, algae, etc.) that are harmful to plants in the world. Plant diseases have caused huge losses to agriculture, and the crops in the world's first zone have lost an average of about 500 mt per year. There have been many times in history when a certain plant disease has caused severe famine and even a large number of people starved to death.

The use of fungicides is a cost-effective way to control plant diseases.

Fungicides do not necessarily belong to pesticides, fungicides can be divided into two categories: agricultural fungicides and industrial fungicides, agricultural fungicides belong to pesticides, and industrial fungicides do not belong to pesticides. Agricultural fungicides are a class of pesticides used to prevent and control plant diseases caused by various pathogenic microorganisms, generally referred to as fungicides.

Fungicides, also known as biocides, bactericidal algaecides, microbial agents, etc., refer to chemical agents that can effectively control or kill bacteria, fungi and algae in the water system.

According to the sterilization mechanism, industrial fungicides can be divided into two categories: oxidizing fungicides and non-oxidizing fungicides, the former has chlorine, chlorine dioxide, ozone, hydrogen peroxide, etc., and the latter has isothiazolinone, chlorophenols, quaternary ammonium salts, etc.

Fungicides can be divided into inorganic fungicides, organosulfur fungicides, substituted benzene fungicides, azole fungicides, antibiotic fungicides, compound fungicides, organophosphorus fungicides, organic arsenic pants fungicides and other types according to the raw materials.

<> microbial agents are not pesticides. Microbial inoculant is a fertilizer containing a large number of beneficial live bacteria, which can decompose organic matter in the soil and increase the availability of nutrients; It can also promote the release of trace elements in the soil and prevent soil compaction; It can also degrade pollutants such as chemical fertilizers and organic pesticides remaining in the soil, reducing the degree of soil pollution.

At this stage, bacterial pesticides are widely used in the control of flower diseases and insect pests, and it has the advantages of high control efficiency, zero pollution, and no residual toxicity. Bacterial pesticides are living Chinese medicine preparations, and the basic principle of insecticidal is that bacteria multiply a lot after entering tapeworm eggs, causing harmful concomitant spore crystals, disrupting all the normal physiological metabolism of insect pests, and causing them to die. It is different from the basic principle of insecticide of organic chemical pesticides, and incorrect operation can reduce the power of the drug or even completely ineffective.

To improve the actual effect of the application of bacterial pesticides, the following "five looks" should be achieved:

One, look at the sun:

In order to better weaken the destructive effect of ultraviolet light in the sun on bacterial spores, the application of bacterial pesticides is best carried out on rainy days or after 4 o'clock at noon.

Second, look at the temperature:

The suitable temperature for the application of bacterial pesticides is above 25 °C. When the temperature drops to a certain level, the insecticidal effect is completely lost. When applying bacteriological pesticides at 25 to 30 hours, the control effectiveness ratio is 1 to 2 times higher at 10 to 15 years.

Therefore, it is best not to use bacterial pesticides at temperatures less than 20.

Third, look at the ambient humidity:

The greater the relative humidity of the air, the better the power of bacteria and pesticides will be fully utilized. Therefore, the application of bacterial pesticides should be carried out sooner or later when there are dewdrops, so as to facilitate the adhesion of bacterial agents to the leaves and stems, promote the reproduction of spores, and improve the chance of contact with insect pests. In addition, the moist soil layer is conducive to the absorption of fungal agents, which in turn improves the actual effect of insecticide.

Fourth, look at the wind: the application of bacterial pesticides on windy days consumes a lot, especially granules, and a lot of them are lost. At the same time, windy days are not conducive to the budding of spores. Therefore, bacterial pesticides should be applied on days when there is no wind or light wind.

Fifth, look at the precipitation:

Moderate to heavy rain will flush out bacterial pesticides sprayed on the main stems, leaves and stems, reducing the effectiveness of the control. If it rains 5 hours after spraying, it has the effect of improving the prevention effect. In order to ensure the efficacy of the drug, it should be sprayed on a rainy day or a light rainy day under the condition that there is no moderate to heavy rain within 1 to 2 days after spraying.

In case of moderate to heavy rain after spraying, it should be applied immediately after the rain, and the actual effect of insecticide is the best.

Correct use of fungicide pesticides Hu Min, senior agronomist of Tianjin Pesticide Control Institute, introduced in detail that fungicides are drugs for the prevention of food crop diseases and pests, and the types should be selected according to the different characteristics, characteristics and efficacy methods of different types of fungicides.

The first is a protective fungicide, which is a traditional Chinese medicine preparation used to solve the problem of plants or the environment in which plants are located before the invasion of pathogenic bacteria. It must be sprayed before the plant knows about the pathogenic bacteria or pests and diseases, so as to receive the actual effect, such as copper traditional Chinese medicine preparation (Bordeaux liquid), sulfur traditional Chinese medicine preparation (dimethoate), mancozeb, mancozeb, cozeb, basic copper sulfate, killable, seed modifier and soil modifier.

The second is the best fungicide, this kind of fungicide is characterized by systemic properties, with this kind of fungicide is that the pathogen has invaded the plant body or the plant has already been susceptible, then the application to the plant to kill the pathogen or inhibit the growth of the pathogen, and then reduce or solve the plant pests and diseases. If you take the medicine in the early stage of plant disease, the actual effect will be better.

Key points in the use of fungicides When using a liquid sprayer with concentration value, it is usually necessary to prepare or dilute the drug with tap water to the appropriate concentration value, and if the concentration value is too high, it will cause drug damage and consumption, and if the concentration value is too low, it will be invalid. Spraying time spraying time too early will produce consumption or decline control effect, too late will many pathogens have already invaded the host, even if spraying the internal absorption, it is not large, should be based on the law of concurrency and the situation at that time or according to the analysis in the short term, immediately grasp the maintenance of spraying when there is no concurrency or just the onset of the disease.

Spraying frequency spraying frequency is mainly based on the length of the drug residual effect period and meteorological factors to determine, generally every 10 15 days spray once, a total of 2 3 times, after the rain to spray, should take into account the cost, save medication. The amount of spraying should be suitable, too little actual effect is not very good, too much is to consume and even lead to pesticide damage, spraying stipulates that the fog point is fine, the spray is symmetrical, and the plant should be maintained everywhere including the front face and back of the leaves need to be sprayed in.

There are many reasons for the pesticide damage caused by spraying pesticides to plants, water-soluble drugs are easy to produce pesticide damage, and the sensitivity of different crops to drugs is not the same, such as Bordeaux liquid generally cannot cause pesticide damage, but crops that are more sensitive to copper can also cause pesticide damage. Legumes, potatoes and cotton wool are more sensitive to dimethoate. The different development of crops has different reactions to drugs, and it is easy to cause pesticide damage in the blooming link of small seedlings and booting stage.

Effective interoperabilityGenerally, pesticides that are easily dissolved and ineffective by alkaline substances cannot be interused with alkaline substances. Long-term use of a single agent to prevent drug resistance will lead to the development of drug resistance of the pathogen, and the drug used will be ineffective. To prevent this problem, different types of drugs can be used alternately, or a mixture of systemic and conventional fungicides.

For said fungicides, pesticides. The correct way to use it is not to use this fungicide pesticide in every plant. And be sure to do it in moderation.

Try to choose to spray some sterilization and insect control agents a little lower, so that you can spray more evenly, and you can also avoid spraying in some places.

First of all, it is necessary to choose the right dose, and then according to the type of crop or material to choose the appropriate pesticides, do not spray too much at one time, and pay attention to the pesticide after spraying, you must change your clothes in time and take a bath in time.

Fungicidal pesticides are: carbendazim, thiophanate-methyl, tobuzin-methyl, alum, chlorothalonil.

Bactericidal pesticides are: ferrous sulfate, copper sulfate, potassium permanganate.

Pesticides can be used to kill insects, fungi and other organisms that harm crop growth. The earliest pesticides used were DDT, hexa66, etc. They can destroy pests in large numbers.

However, they have good stability, can survive in the environment for a long time, and continue to accumulate in animals, plants and humans, so they are eliminated. Later, organophosphorus pesticides, such as dichlorvos, were used instead of the original pesticides. However, they contain phosphorus, which is prone to eutrophication of aquatic organisms.

In recent years, a number of high-efficiency and low-toxicity pesticides have appeared, and now people have found pesticides with specificity, that is, hormone pesticides.

Carbendazim: I know that.