What should I pay attention to when applying bacterial pesticides?

In the process of modern agricultural planting, some pests and diseases will inevitably occur, and most people will choose to use pesticides for control, among which bacterial pesticides are effective pesticides in recent years.

First, look at the sun:

To reduce damage to bacterial spores from ultraviolet rays in sunlight, it is best to use bacterial insecticides on cloudy days or after 4 p.m. If you can add raw molasses or corn syrup to powdered bacterial pesticides, it will have a certain effect on filtering ultraviolet rays.

Second, look at the temperature:

The suitable temperature for the use of bacterial pesticides is above 25. When the temperature is low to a certain level, the insecticidal effect is completely lost. The use of bacterial pesticides at 25 to 30 years is 1 to 2 times more effective than 10 to 15 years.

Therefore, it is best not to use bacterial insecticides when the temperature is below 20.

Third, look at the humidity:

The higher the humidity of the environment, the better the efficacy of bacterial pesticides. Therefore, the use of bacterial pesticides should be carried out in the morning and evening when there is dew, so as to facilitate the adhesion of microbial agents to stems and leaves, promote the reproduction of spores, and increase the chance of contact with pests. In addition, the wetter soil is conducive to the adsorption of microbial agents, thereby improving the insecticidal effect.

Fourth, look at the wind:

The application of bacterial pesticides on windy days is a great waste, especially for powders that are lost a lot. At the same time, windy days are not conducive to spore germination. Therefore, bacterial insecticides should be used on days when there is no wind or a light breeze.

5.Look at the rain:

Moderate to heavy rain will wash away bacterial pesticides sprayed on plant stems and leaves, reducing the effectiveness of control. If it rains 5 hours after spraying, it will increase the preventive effect. To ensure efficacy, it should be used on cloudy or rainy days, with no moderate to heavy rain for 1-2 days after use.

In case of moderate to heavy rain after application, it should be replenished immediately after the rain, and the insecticidal effect is the best at this time.

Relevant knowledge. Bacterial pesticide is a biological control method At present, bacterial pesticide is widely used in the control of flower and tree pests, and it has the advantages of high control effect, no pollution, and no residual toxicity. Bacterial pesticides are living agents, and their insecticidal principle is that bacteria multiply in large quantities after entering the insect body, producing toxic concomitory spore crystals, disrupting the normal physiological metabolism of pests and causing them to 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.

Be aware of the weather conditions. Because the use effect of bacterial pesticides and the weather conditions at the time of use are closely related, and the weather conditions will affect the bacterial activity in the pesticides, so it is necessary to pay attention to the weather conditions when using them.

First of all, we must pay attention to the appropriate time, we must not choose when the wind is stronger, the rain is heavier, and the temperature is higher, and then we must choose the right pesticides according to different crops.

Be sure to water and fertilize in time, but also pay attention to the amount used, and should also pay attention to the problem of proportion, there should be a choice of sunny days for pesticide application, must avoid rainy weather or windy weather, otherwise it will affect the efficacy.

It should be noted that when using pesticides, wear a mask and gloves, and do not use this thing in front of people.

China is a big agricultural country, basically a large number of fruit and vegetable crops are planted in various places, and in the management process, it is often necessary to use various fungicides to control various pests and diseases. The state has strict control over pesticide hazards, and fungicide products are becoming more and more green and efficient, but improper use will still cause many problems. Bacterial biopesticides have the advantages of high insecticidal rate, no environmental pollution, no harm to humans and animals, and no resistance to pests.

It is a new type of pollution-free cultivation and protective agent for vegetables.

The active ingredients of bacterial biopesticides are protein crystals and live spores. At low temperatures, the spores multiply slowly in the pest's body, and the protein crystals do not work easily. The effect of using bacteriological biopesticides at 25 30 is 1 2 times greater than that of using bacteriological biopesticides at 10 15.

Generally, the fungus powder is sprayed in the morning and evening when there is dew, so as to facilitate the adhesion of the fungus agent to the stems and leaves of crops, promote the reproduction of spores, and improve the efficacy.

Soon after spraying bacterial biological pesticides, in case of moderate to heavy rain, the bacterial liquid sprayed on the stems and leaves of crops will be washed away, and the efficacy will be reduced; If there is light rain after 5 hours of application, it will not reduce the control effect, but will increase the control effect. Streptomycin is the most common antibiotic bactericide. Traditional products for the prevention and ** of bacterial diseases.

In recent years, drug resistance has been increasing, the control effect has been decreasing, and superbugs have emerged. Chunleimycin has 76 single doses and 42 mixed certificates, and is widely used in fruit trees, vegetables and rice.

It has a certain control effect on bacteria and fungi and has a good market prospect. It is non-toxic, non-residue, non-polluting to humans and animals, in line with modern environmental protection requirements, and suitable for the production of green and pollution-free food. If you take a large dose of avermectin incorrectly, you may have gastrointestinal symptoms such as depression, excitement, muscle tremors, ataxia, nausea, vomiting, abdominal pain, bloating, and severe poisoning may lead to death.

Avermectin is a highly toxic pesticide, and its formulation is a low-toxicity pesticide. Due to its long use time, low dosage, and fast decomposition in the sun, it is highly safe for humans, animals and the ecological environment.

First of all, we should pay attention to the efficacy, and choose the right pesticide according to the crop, and then when using pesticides, we should also pay attention to the materials, we should also pay attention to the medicinal properties, and we should also pay attention to the time of use, and we must avoid the time when the temperature is relatively high, and we must protect ourselves.

Reduce ultraviolet rays, because the ultraviolet rays in the sunlight have a destructive effect on bacterial spores, so it is best to use bacterial pesticides on cloudy days or after 4 p.m., if you can add raw molasses or corn syrup to powdered bacterial pesticides, it will have a certain effect on filtering ultraviolet rays.

Ensure a certain temperature, the suitable temperature for the use of bacterial pesticides is above 25, only when this temperature is reached, bacteria will multiply in large numbers. If the temperature is low to a certain extent, the insecticidal effect is completely lost. The use of bacterial pesticides at 25 to 30 is 1 to 2 times more effective than at 10 to 15.

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

It is necessary to pay attention to the time of observation, choose pesticides with appropriate concentrations, and do not choose more toxic pesticides, but choose green and harmless.

It should be suspected that the reed should be well controlled, the temperature is about 20, and generally in the environment with greater humidity, the efficacy will be higher, at night or in the morning when there is a water leak, you can spray, so that you can have a sterilizing effect, after 4 o'clock in the afternoon or when it is cloudy, pesticides can also have a good effect.

First of all, it is necessary to pay attention to the concentration of the appropriate pesticide spraying, and then it also needs to be diluted with water after the answer, and then it is necessary to pay attention to the concentration, be sure to choose the appropriate distance, and at the same time be sure to choose the appropriate equipment when spraying.

First of all, we should take the town to choose some pesticides that are suitable for the right and hidden excitations, pay attention to the type of pesticide socks, choose some pesticides with better effects, and must pay attention to the method of spraying pesticides, and also pay attention to the preservation methods of pesticides.

These precautions are to use healthy pesticides, use pesticides produced by regular manufacturers, do not match pesticides at will, and do not blend with other chemical products.

You need to pay attention to the climate, pay attention to the temperature, pay attention to the weather conditions, be sure to pay attention to safety, and pay attention to the way of spraying.

Try to choose to put the spray mouth low when spraying pesticides, so that it will not cause any impact on crops, and it can also play a role in sterilization and insect control.

Bacterial pesticides are biological agents, the insecticidal effect is related to the number and activity of bacteria, but also pay attention to temperature and humidity, the lower the temperature, the greater the humidity, the better the insecticidal effect.

First of all, it is necessary to choose the right pesticide varieties, we must choose a relatively cost-effective one, and then we also need to choose pesticides that meet the relevant national standards, and then we must choose the appropriate amount according to different planting areas, and we must wear protective clothing.

It is necessary to pay attention to the temperature, the humidity of the environment, the content of pesticides, the technology when spraying, and the regulations on spraying.

1. Humidity: Generally, bacterial powder is sprayed in the early morning and evening when there is dew, so that the bacterial agent can better stick to the stems and leaves of crops, so as to promote the reproduction of spores and improve the efficacy. Second, Yang Qi rolls light:

Because the sun's ultraviolet rays have the function of killing bacteria, it is generally recommended to spray imitation pesticides in the evening or on cloudy days.

First of all, it is necessary to ensure the right temperature, which mode then the humidity of the air should reach about 60% of the high, try to choose in the evening, and then avoid the rain plum shed weather, and there is to avoid the wind direction, be sure to avoid the wind.

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 has no knowledge of 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, gram strong, basic copper sulfate, killable, seed modifier and soil modifier.

The second is the most advanced fungicide, this kind of fungicide is characterized by systemic properties, the use of 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 lead to 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 of 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 the consumption and even lead to pesticide damage, spraying stipulates that the fog point is fine, the spray is symmetrical, and the front face and back of the plant should be maintained.

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 lead to 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 right pesticide, 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.