Content: Temperature The suitable temperature for spraying bio-pesticide is 20 °C ~ 30 °C. At this time, the application of biological pesticides is 1~2 times higher than that at 10 °C ~ 15 °C.
Humidity When applying bio-pesticides, the greater the relative humidity of the air, the better the efficacy, especially the powdered bio-pesticides. Because the bacteria are not resistant to dry environmental conditions, spraying powdered biological pesticides should be carried out in the morning and evening when there is dew, which is beneficial to the better adhesion of the fungicide to the crop leaves and improve the efficacy.
Light The ultraviolet rays in the sun have a killing effect on bacteria of biological pesticides. After 30 minutes of sunlight exposure, the bacterial mortality rate is 50%. After 1 hour of irradiation, the bacterial mortality rate is as high as 80%. Therefore, it is best to apply bio-pesticide after 5 pm or on cloudy days.
Rainwater Rain and heavy rain will wash away the biological pesticides sprayed on the leaves, reducing the efficacy. However, if it is light rain after 5 hours of application, it will not only reduce the efficacy, but also have a synergistic effect.
Humidity When applying bio-pesticides, the greater the relative humidity of the air, the better the efficacy, especially the powdered bio-pesticides. Because the bacteria are not resistant to dry environmental conditions, spraying powdered biological pesticides should be carried out in the morning and evening when there is dew, which is beneficial to the better adhesion of the fungicide to the crop leaves and improve the efficacy.
Light The ultraviolet rays in the sun have a killing effect on bacteria of biological pesticides. After 30 minutes of sunlight exposure, the bacterial mortality rate is 50%. After 1 hour of irradiation, the bacterial mortality rate is as high as 80%. Therefore, it is best to apply bio-pesticide after 5 pm or on cloudy days.
Rainwater Rain and heavy rain will wash away the biological pesticides sprayed on the leaves, reducing the efficacy. However, if it is light rain after 5 hours of application, it will not only reduce the efficacy, but also have a synergistic effect.
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