Precautions for the use of biopesticides

In recent years, biological pesticides have gradually replaced some chemical pesticides in our daily life and used in planting and production. Compared with chemical pesticides, biological pesticides will not cause harm to human beings and animals, and have more guarantee for the output and quality of agricultural products. However, we also have a lot of points to pay attention to when using biological pesticides. Then the editor below brings you notes on the use of biological pesticides, let's take a look at it!

1. Pay attention to the temperature

Temperature is what we need to pay attention to when using biological pesticides. Because in most cases, the active components of biological pesticides are mainly composed of protein crystals and spores. If the temperature is too low, the reproduction rate of spores in pests will decrease significantly, and it will also inhibit the role of protein crystals. There has also been a special survey showing that if biological pesticides are used at a temperature of about 28 degrees, the efficacy is about twice as high as that at 15 degrees.

2. Pay attention to humidity

Besides temperature, humidity also needs us to pay more attention to. Microbes in bio-pesticides generally like to grow in a relatively humid environment. Therefore, when we use biological pesticides, it is very important to maintain the humidity in the field. Especially when spraying powdery biological pesticides, it is necessary to improve the application in the field. Therefore, when we spray biological pesticides, it is best to do so in the morning and evening. Because at this time, there is dew in the field, which can ensure that the bacteria stick well to the crops, promote the reproduction of spores and improve the effect of pesticides.

3. Pay attention to the light

The efficacy of biological pesticides is also directly related to light. Ultraviolet rays in sunlight have a very strong killing effect on spores. If the biopesticide is exposed to the sun for half an hour, the death rate of spores can reach nearly half. If exposed to direct sunlight for more than an hour, the spores die as high as 80%. In addition, parasporal crystals will reduce their efficacy if they are exposed to ultraviolet radiation. Therefore, we must be careful not to use biological pesticides in the sun, which is one of the main reasons why biological pesticides should be used in the morning and evening.

Pay attention to Rain Water

Although the moist environment is very beneficial to the efficacy of bio-pesticides, Rain Water will lead to a decline in efficacy. After we use biological pesticides, if we encounter a rainy day, then Rain Water will wash away the biological liquid adhered to the crops, resulting in the ineffectiveness of biological pesticides. Therefore, we should pay attention to observe the good weather, if it rains after spraying, then we should make up the spray in time, and then do a good job of covering the rain. But if it rains more than five hours after spraying, then don't worry, it can also increase the efficacy.

The above is a brief introduction to the matters needing attention in the use of biological pesticides. That's all for today's introduction. This article is for reference only. I hope it can help you all.