1. Grasp the temperature.
When spraying bio-pesticide , it must be controlled at an ideal temperature above 20 °C. The secret is that the active ingredient of this kind of pesticide is composed of protein crystals and living spores. Once sprayed below the above temperature, then The rate of propagation of spores in the body of the pest is very slow and the protein crystals are difficult to exert their effects, often showing no control effect after application. According to the experimental data, the bio-pesticides after spraying are 1-2 times higher than the insecticidal efficiency between 10 and 15 °C between the conditions of 25-30 °C.
2. Do not use in dry weather.
Biological pesticides are also extremely sensitive to humidity requirements. The greater the environmental humidity, the more significant the efficacy of spraying biological pesticides, especially for powdered biological pesticides.
3. Avoid the sun.
Ultraviolet light in the sun has a lethal killing effect on spores. Scientific experiments have shown that direct sunlight for 30 minutes will kill spores by 50% in one fell swoop. After one hour of irradiation, the spore mortality rate is as high as 80%. Therefore, the application time is on a cloudy day or after four in the afternoon.
4, after use, afraid of heavy rain wash.
Spores are most afraid of heavy rain, so it should be carried out according to the weather forecast, because the rain will wash away the sprayed bacteria and lose the lethality.
5, avoid mixing with fungicides .
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