What are the tips for the use of bacterial biopesticides?

First of all, it is necessary to choose the right time to use, but also should pay attention to the ratio, should also pay attention to the concentration, before using also need to dilute with water, and then also need to avoid the wind or rain when the use is relatively large.

The temperature should be controlled within 35, and attention should be paid to environmental problems, usually pay attention to the humidity, pay attention to the use of medicines, but also pay attention to the promotion focus, pay attention to the proportion of the problem.

Dilute it before use, and then put it in a container to drink pesticides must be slower, and the spout should be lower, if it is to kill insects for animals, you can choose to dilute it first, and then use a needle to pull out and hit the animal.

The use technique is that you need to wear protective equipment when using, be sure to mix it with water, choose to use it at night, and be as close to the crops as possible when using it, and don't waste pesticides.

Bacterial biopesticides in 2530'jill8451;than the 10th 15'sola 8451;1 2 times larger; The humidity must be high. It should be mixed with a biocide.

When using bacterial biocodes and insecticides, they should not be mixed with fungicides (such as carbendazim, tobuzin A, etc.), otherwise, CASO can easily lead to a serious reduction in the number of bacteria in the agent, which will affect the effectiveness of the insecticide. Therefore, even with the use of fine particles, some farmers do not pay attention to environmental factors when applying microbial pesticides, do not choose conditions with suitable temperatures, and apply when the temperature is very high or low.

Even in winter or early spring. The higher the humidity of the environment, the more bacterial spores in the bacterial bioinsecticide, such as a humid environment, especially when spraying organic pesticides into powder, more attention should be paid to the humidity in the field. When it comes to using biopesticides with microbial agent EM powder, they prefer a humid environment.

Therefore, the higher the humidity in the field, the higher the efficiency.

In particular, when spraying pesticide biological agent powders, attention should be paid to the moisture between the grooves. General pesticides should be applied to bacterial and biological pesticides. The buds of bacteria prefer a moist environment.

Therefore, the suitable temperature for spraying bacterial biopesticides should be 20-30; , because the active ingredients of these pesticides are protein crystals and live spores. At low temperatures, the spores multiply very slowly inside the pest's body. When in use, the higher the humidity on site, the better the grinding effect, especially when the temperature is lower than 20'151 hours; , it is better not to use bacterial insecticides.

During moderate to heavy rains, bacterial insecticides sprayed on crop stems and leaves are flushed, reducing the effectiveness of control; However, when spraying organic powdered pesticides in CASO, it should be noted that biological field insecticides may mix with most chemical insecticides, as most chemical insecticides are chemically acidic and physiologically neutral, and have no inhibitory effect and moderate response to bacteria and fungi, but have high humidity, usually in the morning and bones.

Inferior agents, use at temperature, dry environment, strong positive return to mold light, heavy rain washing, mixed use. Avoid use at low temperatures, under low temperature conditions, the spores in the pest body reproduction rate is slow, and the protein crystals are not easy to function. Avoid heavy rain or drenching Soon after spraying bacterial biological insecticides, 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 of the drug will be reduced.

The taboo is not to spray insecticide and closed eggplant on people, do a good job of protection when using insecticides, do not use excessive insecticides, and be sure to wash your hands after using insecticides, and do not drink insecticides.

Be sure not to choose some relatively low quality, and the temperature is relatively low when try not to use, but also the bridge is a dry environment try not to use, the air must be particularly moist, and then also choose some price attack than Zensen quality is relatively high, do not choose to mix the use of pesticides, must pay attention to the efficacy.

We must pay attention to the use of the method of fighting, but also should pay attention to the problem of some ingredients, but also need to pay attention to the problem of proportion and dosage, and must avoid chemical reaction when using the base cover.

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.

What are the four tips for the use of bacterial biopesticides?

Biopesticides are compounds that are biologically produced by organisms and have the biological activity of pesticides. The accurate term for biopesticides should be pesticides of biological origin, including pesticides of plant origin, microbial sources and animal sources. The bacterial pesticide is a kind of microbial source pesticide in the biological pesticide, with high insecticidal rate, does not pollute the environment, does not poison humans and livestock, does not induce pests to produce resistance, and is a new type of pesticide that is currently promoted and used in pollution-free cultivation of vegetables.

What should I pay attention to when using bacterial biopesticides?

The insect repellent effect of bacterial pesticides is related to the total number and activity of bacteria, and the temperature standard will affect the bacterial activity in bacterial pesticides at the same time, and then affect the actual effect, so it is necessary to pay attention to meteorological factors such as temperature, environmental humidity, sun, precipitation and so on.

The suitable temperature for bacterial microbial pesticide spraying is 20 30, which is mainly because the active ingredient of this type of pesticide is protein crystals and life-threatening spores, at lower temperatures, the spore bend rents in the body of the insect infestation The reproduction rate is super slow, and the protein crystallization is not easy to produce an effect. Use of bacterial biologics in 25 to 30 cases.

The application of bacterial biological agents pesticides, the greater the relative humidity of the air, the higher the drug power, especially the use of powdered biological agents, it is advisable to carry out the case of dew sooner or later, so that the sparrow is larger than the fungus agent sticks well to the basal leaf, and promotes the breeding of spores and improves the medicinal power.

Ultraviolet light in sunlight has a destructive effect on spores. After 30 minutes of irradiation with sunlight, the mortality rate of spores reached about 50, and the lethality rate of direct exposure reached 80 after 1 hour. Therefore, it is best to use biological pesticides after 5 p.m. or on rainy days.

Moderate to heavy rain will wash away the bacterial liquid sprinkled on the leaves, reducing the potency, but if it rains lightly after 5 hours of spraying, it will reduce the control effect, but has the effect of improving quality and efficiency.