What are the technical points of bacterial pesticide application?

Bacterial biopesticides have the advantages of high insecticidal rate, no pollution to the environment, harmless to humans and animals, and no inducing pests to develop resistance. It is a new type of protective agent that is currently popularized and applied in pollution-free cultivation of vegetables. Because the weather conditions during use will affect the bacterial activity in bacterial pesticides, thus affecting the control effect, it is necessary to pay attention to the weather conditions during use.

Look at the temperature: According to the experiment, the efficacy of bacterial biopesticides applied at a temperature of 25 °C to 30 °C is 1 to 2 times higher than that at a temperature of 10 °C to 15 °C. The bacterial spores in bacterial biopesticides like a humid environment, so the higher the humidity in the field, the higher the efficacy, especially when spraying powdered biopesticides, it is necessary to pay more attention to the humidity in the field.

Generally, spray fungus powder in the early morning and evening when there is dew, so that the fungus can better adhere to the stems and leaves of crops, promote the reproduction of spores, and improve the efficacy of the drug. <>

Choose the right weather environment. Practice has proved that when the temperature is high and the humidity is high, the pest dies quickly and the effect is good; The best effect is achieved when the temperature is above 20 and the relative humidity of the air is above 85%. In order to avoid damage to the spores and crystallization toxins in the microbial agent caused by ultraviolet rays in the sun, it is best to use it in the afternoon or on a cloudy day; Rain 5 hours after application will not reduce the efficacy.

On the contrary, it will accelerate the death of pests. The powder spraying method should be sprayed in the morning, evening, dew or light rain, so that the fungus powder can effectively adhere to the stems and leaves of the crop. <>

In direct sunlight, the spore mortality rate can reach about 50%; In direct sunlight for 1 hour, the spore mortality rate can reach 80%. In addition, ultraviolet radiation can deform paraspore crystals and reduce their effectiveness. Therefore, it is best to spray bacterial biopesticides in the evening or on cloudy days.

Fourth, look at the rain: Soon after spraying bacterial biological pesticides, if there is moderate heavy rain, the bacterial liquid sprayed on the stems and leaves of crops will be washed away, reducing the efficacy of pesticides; However, if there is light rain after 5 hours of spraying, it will not only not reduce the control effect, but will have a synergistic effect. Five look at the wind:

The application of bacterial pesticides on windy days is wasteful, especially powders, and the losses are even greater. At the same time, windy days are not conducive to the germination of spores. Therefore, bacterial insecticides should be used on calm or breezy days.

First, spraying powdered biological pesticides should pay more attention to field 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, promote the reproduction of spores, and improve the efficacy. Second, 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; However, if it rains lightly after 5 hours of application, it will not only not reduce the control effect, but will have a synergistic effect.

First, choose a day when the weather is fine, second, the temperature should not be too high, third, it should not be rainy, fourth, the light should not be too strong, and fifth, it should not be at night.

Technical points of bacterial pesticide application: 1. Spray application; 2. Wormhole injection and application; 3. Applying pesticides to buried soil roots; Fourth, foaming and application; 5. Poison soil application; 6. Watering and applying pesticides.

First of all, it is necessary to avoid rainy days, or when the temperature is relatively high, and then according to different crops or different growth conditions, to choose the appropriate pesticide and dosage, but also should do a good job of personal protection, to wear protective clothing.

When using pesticides, we must grasp between 22 degrees and 28 degrees, so that we will not destroy the activity of agricultural acacia as a silver trace, and then we must choose some of the same effect is better, but will not pollute the environment, you can also choose a new type of protective agent, we must pay attention to the appropriate seed coat and the appropriate amount.

First of all, we should prescribe medicine to Heliang, and at the same time, we need to choose the right pesticides, pay attention to the proportion and dosage of Hepaibi pesticides, improve the insecticidal rate of pesticides, and ensure that they do not pollute the environment.

Bacterial limb biological pesticides have the advantages of high insecticidal rate, no pollution of the environment, harmless to humans and animals, and no induction of pests to produce resistance. Because the weather conditions at the time of use will affect the bacterial hunger and wildness in the bacterial pesticides, so as to affect the control effect, it is necessary to pay attention to the weather conditions at the time of use. The spores of bacteria in bacterial biopesticides like a humid environment, so the higher the humidity in the field, the higher the efficacy, especially when spraying powdered biological agents.

Pay attention to the temperature, pay attention to the time of spraying, but also pay attention to the concentration of spraying, pay attention to the way of spraying, and it must be targeted.

Bacterial pesticides have a high insecticidal rate and are more toxic to people and people. However, when spraying bacterial pesticides, the side temperature of the air residue needs to reach 25 degrees, such as clump oak or above, and the best effect is achieved. In addition, the humidity in Zhengyu's field is higher.

Bacterial pesticide is a biological control method, at present, bacterial pesticide is widely used in the control of flower and tree pests, it has the advantages of high control effect, no pollution, no residual toxicity and so on. 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.

Bacterial pesticides include: bacterial insecticides and bacterial fungicides, bacterial insecticides are currently about 100 kinds of species, the key to research and development are: Bacillus thuringiensis, Bacillus japoca, Bacillus globospora mildling Bacillus death, bacterial fungicides include gram-negative bacteria and gram-positive bacteria are mainly Pseudomonas luminosis and Bacillus spp.

Characteristics of bacterial pesticides: strong selectivity, relatively safe for microorganisms such as humans and animals, high compatibility with the natural environment, generally safe for pest busters, not easy to cause resistance, very easy to shape, short shaping time, relatively simple production process 0 spore-producing bacterial pesticides have strong drought resistance, easy to store and transport, and the cost of development design and filing is less than that of organic chemical pesticides.

Bacterial pesticides are biological products, and the actual effect of pest control is related to the total number and vitality of bacteria.

1. Temperature: The suitable temperature is above 20. If the temperature is slightly lower, the viability spores of bacteria and pesticides in the body of the insect pest are relatively slow, and the viability protein is not easy to give full play, according to the experiment, the efficacy is 1-2 times higher than that used in the case of 25-30 than in the case of 12-15.

Second, humidity: the greater the relative humidity of the air, the higher the efficacy, especially the use of powdered bacterial pesticides. The key factor is that the spores of the bacteria are not resistant to drying.

Therefore, the use of powdered bacterial pesticides should be carried out in the morning and evening when there are dewdrops, so that the bacteria can be better adsorbed on the leaves and stems of crops, and promote the reproduction of spores and improve the chance of contact with insect pests.

3. Sunlight: The ultraviolet light in the sunlight has a destructive effect on the spores, when the sunlight is immediately direct for 30 minutes, the spores will die 50%, and the direct radiation will be 1 hour, and the lethality rate will reach 80%. In addition, ultraviolet radiation also has a deformation and degrading effect on the crystallization of accompanying spores.

Therefore, it is advisable to apply the pesticide after 4 p.m. or on a rainy day.

Fourth, rain: rain after application will reduce the efficacy, but 5 hours after the application of the drizzle, not only will reduce the efficacy, but also have the effect of improving the efficacy. Because the drizzle has a promoting effect on the theme activity of spores, it will accelerate the death of insect pests.

Therefore, the use of bacteriological pesticides should be closely combined with the local weather forecast to ensure that there is no moderate to heavy rain or heavy rain within 1-2 days after application. In case of heavy rain after application, it should be supplemented immediately after the rain; At this time, the actual effect of insect control is better.

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.

The first thing is to ensure the right temperature, which mode then the humidity of the air should reach about 60% of the high level, 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.

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.

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.

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.