Use bacterial biological pesticides to be alert to weather changes. Why?

Use bacterial biological pesticides to be alert to weather changes. Why? Bacterial pesticide is a kind of traditional Chinese medicine preparation pesticide derived from microbial strains in biological pesticides, which has the characteristics of high pest removal rate, no pollution to the environment, no harm to people and livestock, and no drug resistance of pests. It is a new drug widely used in the key marketing of pollution-free planting of vegetables and fruits. The insect repellent effect of bacterial pesticides is related to the total number and activity of bacteria, and the temperature standard will endanger the bacterial activity in bacterial pesticides at the same time, thus endangering the actual effect.

sun

Because ultraviolet rays in sunlight have a destructive effect on spores. The lethal rate of spores reached 50% after 30 minutes of sunlight irradiation and 80% after direct irradiation 1 hour. Therefore, * apply biological pesticides after 5 pm or in rainy days.

temperature

Because the effective components of this kind of pesticide reproduce slowly at low temperature, protein crystal solution is not easy to produce drug effect. Therefore, the suitable environmental temperature for spraying bacterial biopesticides is 20 ~ 30℃, and the efficacy of using bacterial biopesticides at 25 ~ 30℃ is higher than that of 10 ~ 15℃ 12 times.

ambient humidity

The higher the relative humidity of the air, the higher the efficacy when using bacterial biopesticides, especially when using powdery biopesticides, which should be carried out under the condition of dew in the morning and evening, so as to facilitate the bacteria to adhere to the basal leaves well, promote spore reproduction and enhance the efficacy.

deposit

Moderate to heavy rain will wash away the bacterial liquid spilled on the leaves and reduce the efficacy. But if sprayed for 5 hours, it is not easy to reduce the control effect, but it has the effect of improving quality and increasing efficiency.

Throughout the application of bacterial biopesticides, weather conditions are very important and directly endanger the actual effect of application. Farmers' friends should always pay attention to the weather in order to achieve the practical effect of getting twice the result with half the effort. Be careful of the weather changes when using bacterial biological pesticides.

The above is my detailed introduction. I hope it will help everyone and solve the problem as soon as possible. You can leave a message below if you have any questions.