Bio-pesticide is a kind of pesticide that is processed by biological agents and has high insecticidal performance, does not pollute the environment, does not poison humans and animals, does not harm natural enemies, and does not induce drug resistance. It is also called “bacterial pesticideâ€. However, the following issues must be noted in the application:
Temperature bio-pesticide must be controlled to an ideal temperature of 20 degrees Celsius when spraying. Since the active ingredient of this kind of pesticide is composed of protein crystals and living spores, once sprayed below the above temperature, the spores will be very slow in the body of the pest, and the protein crystals are difficult. To play its role, it is often impossible to prevent and control after spraying. According to experiments, spraying bio-pesticide at a temperature of 25 ° C ~ 30 ° C, the insecticidal effect is 1 to 2 times higher than spraying bio-pesticides at a temperature of 10 ° C ~ 15 ° C.
Humidity Biological pesticides are also extremely sensitive to humidity. According to research data, the greater the environmental humidity, the more significant the efficacy of spraying bio-pesticides, especially powdered bio-pesticides. This requires that when spraying the bacterial powder, it is necessary to have dew in the morning and evening, so that the agent can adhere well to the stems and leaves, so that the spores can quickly multiply.
Sunlight The ultraviolet rays in the sun have a lethal killing effect on spores. Scientific experiments have shown that in just 30 minutes under direct sunlight, the spore mortality rate is 50%. After 1 hour of irradiation, the spore mortality rate was as high as 80%, and the ultraviolet radiation also reduced the parasitic crystals. Therefore, the choice of bio-pesticide after 4 pm or cloudy days will be better.
Rainwater Rainstorms will wash away the sprayed biological pesticides, causing the spores to lose their lethality. However, if you encounter five or six hours of light rain after spraying, the effect will not be reduced, but will increase, because light rain is very beneficial to the propagation of spores, which can kill more pests.
Temperature bio-pesticide must be controlled to an ideal temperature of 20 degrees Celsius when spraying. Since the active ingredient of this kind of pesticide is composed of protein crystals and living spores, once sprayed below the above temperature, the spores will be very slow in the body of the pest, and the protein crystals are difficult. To play its role, it is often impossible to prevent and control after spraying. According to experiments, spraying bio-pesticide at a temperature of 25 ° C ~ 30 ° C, the insecticidal effect is 1 to 2 times higher than spraying bio-pesticides at a temperature of 10 ° C ~ 15 ° C.
Humidity Biological pesticides are also extremely sensitive to humidity. According to research data, the greater the environmental humidity, the more significant the efficacy of spraying bio-pesticides, especially powdered bio-pesticides. This requires that when spraying the bacterial powder, it is necessary to have dew in the morning and evening, so that the agent can adhere well to the stems and leaves, so that the spores can quickly multiply.
Sunlight The ultraviolet rays in the sun have a lethal killing effect on spores. Scientific experiments have shown that in just 30 minutes under direct sunlight, the spore mortality rate is 50%. After 1 hour of irradiation, the spore mortality rate was as high as 80%, and the ultraviolet radiation also reduced the parasitic crystals. Therefore, the choice of bio-pesticide after 4 pm or cloudy days will be better.
Rainwater Rainstorms will wash away the sprayed biological pesticides, causing the spores to lose their lethality. However, if you encounter five or six hours of light rain after spraying, the effect will not be reduced, but will increase, because light rain is very beneficial to the propagation of spores, which can kill more pests.
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