Bio-pesticide is a kind of pesticide which is processed by biological agents and has high insecticidal performance, does not pollute the environment and does not poison humans and animals, does not harm natural enemies, and does not induce drug resistance. It is also called “bacterial pesticide†and has a broad range. Development prospects. However, you must pay attention to the following issues when using it.
temperature
When spraying bio-pesticide, be sure to control it at an ideal temperature of 20 degrees Celsius or more. The active ingredient of this kind of pesticide is composed of protein crystals and living spores. Once sprayed below the above temperature, the spores are very slow in the body of the pest, and the protein crystals are difficult to play their role. After spraying, no control effect was observed. According to the test, between the conditions of temperature 25-30 ° C, the effect of bio-pesticides after spraying is 1 - 2 times higher than the insecticidal efficiency between 10 and 15 degrees Celsius.
humidity
Biological pesticides are also extremely sensitive to humidity requirements. According to some research data, the greater the environmental humidity, the more significant the efficacy of spraying biological pesticides, especially for powdered biological pesticides. This tells everyone that when spraying the bacteria powder, it is necessary to firmly grasp the dew in the morning and evening. The use on the vegetable crops can not be ignored, so that the agent adheres well to the stems and leaves, and the spores will be quickly propagated. As long as the pests eat any leaf, etc., they can kill each other.
sunshine
Ultraviolet light in the sun has a lethal killing effect on spores. Scientific experiments tell us that in the direct sunlight, only 30 minutes, the spores will be killed 50% in one fell swoop. After 1 hour of irradiation, the spore mortality rate is as high as 80%, and the ultraviolet radiation can also produce spore crystals. Deformation is effective, so choose to use it after 4 o'clock in the afternoon or on cloudy days.
rainwater
Spores are most afraid of torrential rain, so it should be carried out according to the weather forecast. Because the rain will wash away the bacteria sprayed on the vegetables, it will lose the lethality, but if it encounters 5 or 6 hours of light rain after spraying, it will not lower the medicine. Effect, but can improve the effectiveness. Light rain is beneficial to spore germination, and the pest accelerates its death once it is eaten.
temperature
When spraying bio-pesticide, be sure to control it at an ideal temperature of 20 degrees Celsius or more. The active ingredient of this kind of pesticide is composed of protein crystals and living spores. Once sprayed below the above temperature, the spores are very slow in the body of the pest, and the protein crystals are difficult to play their role. After spraying, no control effect was observed. According to the test, between the conditions of temperature 25-30 ° C, the effect of bio-pesticides after spraying is 1 - 2 times higher than the insecticidal efficiency between 10 and 15 degrees Celsius.
humidity
Biological pesticides are also extremely sensitive to humidity requirements. According to some research data, the greater the environmental humidity, the more significant the efficacy of spraying biological pesticides, especially for powdered biological pesticides. This tells everyone that when spraying the bacteria powder, it is necessary to firmly grasp the dew in the morning and evening. The use on the vegetable crops can not be ignored, so that the agent adheres well to the stems and leaves, and the spores will be quickly propagated. As long as the pests eat any leaf, etc., they can kill each other.
sunshine
Ultraviolet light in the sun has a lethal killing effect on spores. Scientific experiments tell us that in the direct sunlight, only 30 minutes, the spores will be killed 50% in one fell swoop. After 1 hour of irradiation, the spore mortality rate is as high as 80%, and the ultraviolet radiation can also produce spore crystals. Deformation is effective, so choose to use it after 4 o'clock in the afternoon or on cloudy days.
rainwater
Spores are most afraid of torrential rain, so it should be carried out according to the weather forecast. Because the rain will wash away the bacteria sprayed on the vegetables, it will lose the lethality, but if it encounters 5 or 6 hours of light rain after spraying, it will not lower the medicine. Effect, but can improve the effectiveness. Light rain is beneficial to spore germination, and the pest accelerates its death once it is eaten.
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